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Author |
Yusupov, M.; Dewaele, D.; Attri, P.; Khalilov, U.; Sobott, F.; Bogaerts, A. |
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Title |
Molecular understanding of the possible mechanisms of oligosaccharide oxidation by cold plasma |
Type |
A1 Journal article |
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Year |
2022 |
Publication ![sorted by Publication field, descending order (down)](img/sort_desc.gif) |
Plasma processes and polymers |
Abbreviated Journal |
Plasma Process Polym |
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Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
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Abstract |
Cold atmospheric plasma (CAP) is a promising technology for several medical applications, including the removal of biofilms from surfaces. However, the molecular mechanisms of CAP treatment are still poorly understood. Here we unravel the possible mechanisms of CAP‐induced oxidation of oligosaccharides, employing reactive molecular dynamics simulations based on the density functional‐tight binding potential. Specifically, we find that the interaction of oxygen atoms (used as CAP‐generated reactive species) with cellotriose (a model system for the oligosaccharides) can break structurally important glycosidic bonds, which subsequently leads to the disruption of the oligosaccharide molecule. The overall results help to shed light on our experimental evidence for cellotriose CAP. This oxidation by study provides atomic‐level insight into the onset of plasma‐induced removal of biofilms, as oligosaccharides are one of the main components of biofilm. |
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Wos |
000865844800001 |
Publication Date |
2022-10-11 |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1612-8850 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
3.5 |
Times cited |
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Open Access |
OpenAccess |
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Notes |
Fonds Wetenschappelijk Onderzoek, 1200219N ; They also acknowledge the Turing HPC infrastructure at the CalcUA core facility of the University of Antwerp (UA), a division of the Flemish Supercomputer Center VSC, funded by the Hercules Foundation, the Flemish Government (department EWI), and the UA, where all computational work was performed. This study was financially supported by the Research Foundation–Flanders (FWO) (grant number 1200219N). |
Approved |
Most recent IF: 3.5 |
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Call Number |
PLASMANT @ plasmant @c:irua:191404 |
Serial |
7113 |
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Permanent link to this record |
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Author |
Lin, A.; Biscop, E.; Gorbanev, Y.; Smits, E.; Bogaerts, A. |
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Title |
Toward defining plasma treatment dose : the role of plasma treatment energy of pulsed‐dielectric barrier discharge in dictating in vitro biological responses |
Type |
A1 Journal article |
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Year |
2022 |
Publication ![sorted by Publication field, descending order (down)](img/sort_desc.gif) |
Plasma Processes And Polymers |
Abbreviated Journal |
Plasma Process Polym |
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Volume |
19 |
Issue |
3 |
Pages |
e2100151 |
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Keywords |
A1 Journal article; Pharmacology. Therapy; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
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Abstract |
The energy dependence of a pulsed-dielectric barrier discharge (DBD) plasma treatment on chemical species production and biological responses was investigated. We hypothesized that the total plasma energy delivered during treatment encompasses the influence of major application parameters. A microsecond-pulsed DBD system was used to treat three different cancer cell lines and cell viability was analyzed. The energy per pulse was measured and the total plasma treatment energy was controlled by adjusting the pulse frequency, treatment time, and application distance. Our data suggest that the delivered plasma energy plays a predominant role in stimulating a biological response in vitro. This study aids in developing steps toward defining a plasma treatment unit and treatment dose for biomedical and clinical research. |
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000711907800001 |
Publication Date |
2021-10-28 |
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Edition |
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ISSN |
1612-8850 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
3.5 |
Times cited |
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Open Access |
OpenAccess |
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Approved |
Most recent IF: 3.5 |
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Call Number |
UA @ admin @ c:irua:182916 |
Serial |
7219 |
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Permanent link to this record |
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Author |
Tampieri, F.; Gorbanev, Y.; Sardella, E. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Plasma‐treated liquids in medicine: Let's get chemical |
Type |
A1 Journal Article |
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Year |
2023 |
Publication ![sorted by Publication field, descending order (down)](img/sort_desc.gif) |
Plasma Processes and Polymers |
Abbreviated Journal |
Plasma Processes & Polymers |
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Volume |
20 |
Issue |
9 |
Pages |
e2300077 |
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Keywords |
A1 Journal Article; Plasma, laser ablation and surface modeling Antwerp (PLASMANT) ; |
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Abstract |
Fundamental and applied research on plasma‐treated liquids for biomedical applications was boosted in the last few years, dictated by their advantages with respect to direct treatments. However, often, the lack of consistent analysis at a molecular level of these liquids, and of the processes used to produce them, have raised doubts of their usefulness in the clinic. The aim of this article is to critically discuss some basic aspects related to the use of plasma‐treated liquids in medicine, with a focus on their chemical composition. We analyze the main liquids used in the field, how they are affected by non‐thermal plasmas, and the possibility to replicate them without plasma treatment. |
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Wos |
001005060700001 |
Publication Date |
2023-06-08 |
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Series Volume |
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Edition |
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ISSN |
1612-8850 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
3.5 |
Times cited |
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Open Access |
Not_Open_Access |
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Notes |
We thank COST Actions CA20114 (Therapeutical Applications of Cold Plasmas) and CA19110 (Plasma Applications for Smart and Sustainable Agriculture) for the stimulating environment provided. Francesco Tampieri wishes to thank Dr. Cristina Canal for the helpful discussion during the planning stage of this paper. |
Approved |
Most recent IF: 3.5; 2023 IF: 2.846 |
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Call Number |
PLASMANT @ plasmant @c:irua:197386 |
Serial |
8814 |
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Permanent link to this record |
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Author |
Morais, E.; Bogaerts, A. |
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Title |
Modelling the dynamics of hydrogen synthesis from methane in nanosecond‐pulsed plasmas |
Type |
A1 Journal article |
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Year |
2024 |
Publication ![sorted by Publication field, descending order (down)](img/sort_desc.gif) |
Plasma processes and polymers |
Abbreviated Journal |
Plasma Processes & Polymers |
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Volume |
21 |
Issue |
1 |
Pages |
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Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
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Abstract |
A chemical kinetics model was developed to characterise the gas‐phase dynamics of H<sub>2</sub>production in nanosecond‐pulsed CH<sub>4</sub>plasmas. Pulsed behaviour was observed in the calculated electric field, electron temperature and species densities at all pressures. The model agrees reasonably with experimental results, showing CH<sub>4</sub>conversion at 30% and C<sub>2</sub>H<sub>2</sub>and H<sub>2</sub>as major products. The underlying mechanisms in CH<sub>4</sub>dissociation and H<sub>2</sub>formation were analysed, highlighting the large contribution of vibrationally excited CH<sub>4</sub>and H<sub>2</sub>to coupling energy from the plasma into gas‐phase heating, and revealing that H<sub>2</sub>synthesis is not affected by applied pressure, with selectivity remaining unchanged at ~42% in the 1–5 bar range. |
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Wos |
001091258700001 |
Publication Date |
2023-10-27 |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1612-8850 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
3.5 |
Times cited |
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Open Access |
Not_Open_Access |
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Notes |
We gratefully acknowledge financial support by the Flemish Government through the Moonshot cSBO project “Power‐to‐Olefins” (P2O; HBC.2020.2620) and funding from the Independent Research Fund Denmark (project nr. 0217‐00231B). |
Approved |
Most recent IF: 3.5; 2024 IF: 2.846 |
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Call Number |
PLASMANT @ plasmant @c:irua:201192 |
Serial |
8983 |
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Permanent link to this record |
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Author |
Chai, Z.-N.; Wang, X.-C.; Yusupov, M.; Zhang, Y.-T. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Unveiling the interaction mechanisms of cold atmospheric plasma and amino acids by machine learning |
Type |
A1 Journal article |
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Year |
2024 |
Publication ![sorted by Publication field, descending order (down)](img/sort_desc.gif) |
Plasma processes and polymers |
Abbreviated Journal |
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Volume |
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Issue |
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Pages |
1-26 |
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Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
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Abstract |
Plasma medicine has attracted tremendous interest in a variety of medical conditions, ranging from wound healing to antimicrobial applications, even in cancer treatment, through the interactions of cold atmospheric plasma (CAP) and various biological tissues directly or indirectly. The underlying mechanisms of CAP treatment are still poorly understood although the oxidative effects of CAP with amino acids, peptides, and proteins have been explored experimentally. In this study, machine learning (ML) technology is introduced to efficiently unveil the interaction mechanisms of amino acids and reactive oxygen species (ROS) in seconds based on the data obtained from the reactive molecular dynamics (MD) simulations, which are performed to probe the interaction of five types of amino acids with various ROS on the timescale of hundreds of picoseconds but with the huge computational load of several days. The oxidative reactions typically start with H-abstraction, and the details of the breaking and formation of chemical bonds are revealed; the modification types, such as nitrosylation, hydroxylation, and carbonylation, can be observed. The dose effects of ROS are also investigated by varying the number of ROS in the simulation box, indicating agreement with the experimental observation. To overcome the limits of timescales and the size of molecular systems in reactive MD simulations, a deep neural network (DNN) with five hidden layers is constructed according to the reaction data and employed to predict the type of oxidative modification and the probability of occurrence only in seconds as the dose of ROS varies. The well-trained DNN can effectively and accurately predict the oxidative processes and productions, which greatly improves the computational efficiency by almost ten orders of magnitude compared with the reactive MD simulation. This study shows the great potential of ML technology to efficiently unveil the underpinning mechanisms in plasma medicine based on the data from reactive MD simulations or experimental measurements. In this study, since reactive molecular dynamics simulation can currently only describe interactions between a few hundred atoms in a few hundred picoseconds, deep neural networks (DNN) are introduced to enhance the simulation results by predicting more data efficiently. image |
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Wos |
001202061200001 |
Publication Date |
2024-04-15 |
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Edition |
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ISSN |
1612-8850 |
ISBN |
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Additional Links |
UA library record; WoS full record |
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Impact Factor |
3.5 |
Times cited |
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Open Access |
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Notes |
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Approved |
Most recent IF: 3.5; 2024 IF: 2.846 |
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Call Number |
UA @ admin @ c:irua:205512 |
Serial |
9181 |
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Permanent link to this record |
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Author |
Bogaerts, A.; Gijbels, R. |
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Title |
Comprehensive three-dimensional modeling network for a dc glow discharge plasma |
Type |
A1 Journal article |
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Year |
1998 |
Publication ![sorted by Publication field, descending order (down)](img/sort_desc.gif) |
Plasma physics reports |
Abbreviated Journal |
Plasma Phys Rep+ |
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Volume |
24 |
Issue |
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Pages |
573-583 |
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Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
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New York |
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Wos |
000075129800005 |
Publication Date |
0000-00-00 |
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ISSN |
1063-780x |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
0.984 |
Times cited |
8 |
Open Access |
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Notes |
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Approved |
Most recent IF: 0.984; 1998 IF: 0.444 |
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Call Number |
UA @ lucian @ c:irua:24123 |
Serial |
452 |
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Permanent link to this record |
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Author |
Neyts, E.; Eckert, M.; Mao, M.; Bogaerts, A. |
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Title |
Numerical simulation of hydrocarbon plasmas for nanoparticle formation and the growth of nanostructured thin films |
Type |
A1 Journal article |
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Year |
2009 |
Publication ![sorted by Publication field, descending order (down)](img/sort_desc.gif) |
Plasma physics and controlled fusion |
Abbreviated Journal |
Plasma Phys Contr F |
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Volume |
51 |
Issue |
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Pages |
124034,1-124034,8 |
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Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
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Abstract |
This paper outlines two different numerical simulation approaches, carried out by our group, used for describing hydrocarbon plasmas in their applications for either nanoparticle formation in the plasma or the growth of nanostructured thin films, such as nanocrystalline diamond (NCD). A plasma model based on the fluid approach is utilized to study the initial mechanisms giving rise to nanoparticle formation in an acetylene plasma. The growth of NCD is investigated by molecular dynamics simulations, describing the interaction of the hydrocarbon species with a substrate. |
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Oxford |
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Wos |
000271940800045 |
Publication Date |
2009-11-12 |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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ISSN |
0741-3335;1361-6587; |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
2.392 |
Times cited |
2 |
Open Access |
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Notes |
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Approved |
Most recent IF: 2.392; 2009 IF: 2.409 |
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Call Number |
UA @ lucian @ c:irua:79132 |
Serial |
2405 |
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Permanent link to this record |
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Author |
Fridman, A.; Lin, A.; Miller, V.; Bekeschus, S.; Wende, K.; Weltmann, K.-D. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
The plasma treatment unit : an attempt to standardize cold plasma treatment for defined biological effects |
Type |
A1 Journal article |
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Year |
2018 |
Publication ![sorted by Publication field, descending order (down)](img/sort_desc.gif) |
Plasma medicine |
Abbreviated Journal |
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Volume |
8 |
Issue |
2 |
Pages |
195-201 |
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Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
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Abstract |
Plasma bioscience and medicine are both rapidly growing fields. Their aim is to utilize cold physical plasmas for desired biological outcomes in medicine, biotechnology, agriculture, and general hygienic purposes. Great success has been achieved in many applications with individually designed plasma sources and plasma parameters. Although lab and application-specific tuning of plasmas is a great advantage of this technology, standardized units to define plasma treatments are required to facilitate comparison of the effects found by different researchers who do not use the same plasma sources. By drawing conclusions from over a century of plasma biomedical research, we propose that all researchers adopt the use of a standardized value, the plasma treatment unit (PTU), to describe the biological effects of different cold plasma sources and treatment regimens. It quantifies a key plasma effector in biological systems as an indicator and may provide the foundation for an analogous and clinically relevant unit in the future. |
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Publication Date |
2018-06-13 |
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Additional Links |
UA library record |
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Open Access |
Not_Open_Access |
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Notes |
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Approved |
Most recent IF: NA |
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Call Number |
UA @ lucian @ c:irua:155652 |
Serial |
5123 |
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Permanent link to this record |
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Author |
Truong, B.; Siegert, K.; Lin, A.; Miller, V.; Krebs, F.C. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Apical application of nanosecond-pulsed dielectric barrier discharge plasma causes the basolateral release of adenosine triphosphate as a damage-associated molecular pattern from polarized HaCaT cells |
Type |
A1 Journal article |
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Year |
2017 |
Publication ![sorted by Publication field, descending order (down)](img/sort_desc.gif) |
Plasma medicine |
Abbreviated Journal |
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Volume |
7 |
Issue |
2 |
Pages |
117-131 |
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Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
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Abstract |
Promising biomedical uses for nonthermal plasma (NTP) in the fields of regenerative medicine, cancer therapy, and vaccine delivery involve the noninvasive application of uniform nonequilibrium plasma (including dielectric barrier discharge plasma) to living skin. Whereas most investigations have focused on achieving desired therapeutic outcomes, fewer studies have examined the mechanisms and pathways by which epithelial cells respond to NTP exposure. Using a transwell apical-basolateral-chambered system to culture the human keratinocyte HaCaT cell line, in vitro experiments were performed to demonstrate the effects of nanosecond-pulsed dielectric barrier discharge (nsDBD) plasma on polarized epithelial cell viability, monolayer permeability, intracellular oxidative stress, and the release of adenosine triphosphate (ATP). Application of nsDBD plasma at 60 Hz or below had minimal or no effect on HaCaT monolayer viability or permeability. nsDBD plasma exposure did, however, result in frequency-dependent reductions in intracellular glutathione (indicating direct induction of oxidative stress by nsDBD plasma) and increased extracellular ATP concentrations in the ba-solateral (subepithelial) media, which are indicators of cellular stress and an NTP-induced inflammatory response. These studies provide new insights into nsDBD plasma-induced inflammation and local innate immune responses initiated by polarized epithelial tissues. |
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Publication Date |
2017-02-24 |
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UA library record |
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no |
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Call Number |
UA @ admin @ c:irua:155656 |
Serial |
7465 |
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Permanent link to this record |
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Author |
Lin, A.; Truong, B.; Fridman, G.; Friedman, A.A.; Miller, V. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Immune cells enhance selectivity of nanosecond-pulsed DBD plasma against tumor cells |
Type |
A1 Journal article |
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Year |
2017 |
Publication ![sorted by Publication field, descending order (down)](img/sort_desc.gif) |
Plasma medicine |
Abbreviated Journal |
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Volume |
7 |
Issue |
1 |
Pages |
85-96 |
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Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
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Abstract |
Cancer immunotherapy is a promising strategy that engages the patient's immune system to kill cancer cells selectively while sparing normal tissue. Treatment of macrophages with a nanosecond-pulsed dielectric barrier discharge directly enhanced their cytotoxic activity against tumor cells but not normal cells. These results underscore the clinical potential of plasma for cancer immunotherapy. |
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Publication Date |
2017-08-15 |
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UA library record |
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no |
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Call Number |
UA @ admin @ c:irua:155657 |
Serial |
8058 |
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Permanent link to this record |
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Author |
Ranieri, P.; Shrivastav, R.; Wang, M.; Lin, A.; Fridman, G.; Fridman, A.A.; Han, L.-H.; Miller, V. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Nanosecond-pulsed dielectric barrier dischargeinduced antitumor effects propagate through depth of tissue via intracellular signaling |
Type |
A1 Journal article |
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Year |
2017 |
Publication ![sorted by Publication field, descending order (down)](img/sort_desc.gif) |
Plasma medicine |
Abbreviated Journal |
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Volume |
7 |
Issue |
3 |
Pages |
283-297 |
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Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
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Abstract |
Studies using xenograft mouse models have shown that plasma applied to the skin overlying tumors results in tumor shrinkage. Plasma is considered a nonpenetrating treatment; however, these studies demonstrate plasma effects that occur beyond the postulated depth of physical penetration of plasma components. The present study examines the propagation of plasma effects through a tissue model using three-dimensional, cell-laden extracellular matrices (ECMs). These ECMs are used as barriers against direct plasma penetration. By placing them onto a monolayer of target cancer cells to create an in-vitro analog to in-vivo studies, we distinguished between cellular effects from direct plasma exposure and cellular effects due to cell-to-cell signaling stimulated by plasma. We show that nanosecond-pulsed dielectric barrier discharge plasma treatment applied atop an acellular barrier impedes the externalization of calreticulin (CRT) in the target cells. In contrast, when a barrier is populated with cells, CRT externalization is restored. Thus, we demonstrate that plasma components stimulate signaling among cells embedded in the barrier to transfer plasma effects to the target cells. |
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Place of Publication |
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Wos |
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Publication Date |
2017-09-01 |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
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ISBN |
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Additional Links |
UA library record |
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Impact Factor |
|
Times cited |
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Open Access |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:155658 |
Serial |
8293 |
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Permanent link to this record |
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Author |
Vandenbroucke, A.M.; Aerts, R.; Van Gaens, W.; De Geyter, N.; Leys, C.; Morent, R.; Bogaerts, A. |
![goto web page url](http://nano.uantwerpen.be/nanorefs/img/www.gif)
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Title |
Modeling and experimental study of trichloroethylene abatement with a negative direct current corona discharge |
Type |
A1 Journal article |
|
Year |
2015 |
Publication ![sorted by Publication field, descending order (down)](img/sort_desc.gif) |
Plasma chemistry and plasma processing |
Abbreviated Journal |
Plasma Chem Plasma P |
|
|
Volume |
35 |
Issue |
35 |
Pages |
217-230 |
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|
Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
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|
Abstract |
In this work, we study the abatement of dilute trichloroethylene (TCE) in air with a negative direct current corona discharge. A numerical model is used to theoretically investigate the underlying plasma chemistry for the removal of TCE, and a reaction pathway for the abatement of TCE is proposed. The Cl atom, mainly produced by dissociation of COCl, is one of the controlling species in the TCE destruction chemistry and contributes to the production of chlorine containing by-products. The effect of humidity on the removal efficiency is studied and a good agreement is found between experiments and the model for both dry (5 % relative humidity (RH)) and humid air (50 % RH). An increase of the relative humidity from 5 % to 50 % has a negative effect on the removal efficiency, decreasing by ±15 % in humid air. The main loss reactions for TCE are with ClO·, O· and CHCl2. Finally, the by-products and energy cost of TCE abatement are discussed. |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
New York |
Editor |
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Language |
|
Wos |
000347285800014 |
Publication Date |
2014-09-10 |
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Series Editor |
|
Series Title |
|
Abbreviated Series Title |
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Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
0272-4324;1572-8986; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
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|
Impact Factor |
2.355 |
Times cited |
9 |
Open Access |
|
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Notes |
|
Approved |
Most recent IF: 2.355; 2015 IF: 2.056 |
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|
Call Number |
c:irua:118882 |
Serial |
2108 |
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Permanent link to this record |
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Author |
Bogaerts, A.; van de Sanden, R. |
![goto web page url](http://nano.uantwerpen.be/nanorefs/img/www.gif)
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Special Issue of Papers by Plenary and Topical Invited Lecturers at the 22nd International Symposium on Plasma Chemistry (ISPC 22), 5–10 July 2015, Antwerp, Belgium: Introduction |
Type |
Editorial |
|
Year |
2016 |
Publication ![sorted by Publication field, descending order (down)](img/sort_desc.gif) |
Plasma chemistry and plasma processing |
Abbreviated Journal |
Plasma Chem Plasma P |
|
|
Volume |
36 |
Issue |
36 |
Pages |
1-2 |
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|
Keywords |
Editorial; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
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Abstract |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
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Editor |
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Language |
|
Wos |
000370720800001 |
Publication Date |
2016-01-11 |
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Series Editor |
|
Series Title |
|
Abbreviated Series Title |
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|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
0272-4324 |
ISBN |
|
Additional Links |
UA library record; WoS full record |
|
|
Impact Factor |
2.355 |
Times cited |
|
Open Access |
|
|
|
Notes |
|
Approved |
Most recent IF: 2.355 |
|
|
Call Number |
c:irua:130713 |
Serial |
4003 |
|
Permanent link to this record |
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|
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Author |
Neyts, E.C. |
![goto web page url](http://nano.uantwerpen.be/nanorefs/img/www.gif)
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Title |
Plasma-Surface Interactions in Plasma Catalysis |
Type |
A1 Journal article |
|
Year |
2016 |
Publication ![sorted by Publication field, descending order (down)](img/sort_desc.gif) |
Plasma chemistry and plasma processing |
Abbreviated Journal |
Plasma Chem Plasma P |
|
|
Volume |
36 |
Issue |
36 |
Pages |
185-212 |
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|
Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
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|
Abstract |
In this paper the various elementary plasma—surface interaction processes occurring in plasma catalysis are critically evaluated. Specifically, plasma catalysis at atmospheric pressure is considered. The importance of the various processes is analyzed for the most common plasma catalysis sources, viz. the dielectric barrier discharge and the gliding arc. The role and importance of surface chemical reactions (including adsorption, surface-mediated association and dissociation reactions, and desorption), plasma-induced surface modification, photocatalyst activation, heating, charging, surface discharge formation and electric field enhancement are discussed in the context of plasma catalysis. Numerous examples are provided to demonstrate the importance of the various processes. |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
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Editor |
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Language |
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Wos |
000370720800011 |
Publication Date |
2015-10-16 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
0272-4324 |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
|
Impact Factor |
2.355 |
Times cited |
66 |
Open Access |
|
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Notes |
The author is indebted to many colleagues for fruitful discussions. In particular discussions with A. Bogaerts (University of Antwerp, Belgium), H.-H. Kim (AIST, Japan), J. C. Whitehead (University of Manchester, UK) and T. Nozaki (Tokyo Institute of Technology, Japan) are greatfully acknowledged and appreciated. |
Approved |
Most recent IF: 2.355 |
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|
Call Number |
c:irua:130742 |
Serial |
4004 |
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Permanent link to this record |
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Author |
Bekeschus, S.; Lin, A.; Fridman, A.; Wende, K.; Weltmann, K.-D.; Miller, V. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
A comparison of floating-electrode DBD and kINPen jet : plasma parameters to achieve similar growth reduction in colon cancer cells under standardized conditions |
Type |
A1 Journal article |
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Year |
2018 |
Publication ![sorted by Publication field, descending order (down)](img/sort_desc.gif) |
Plasma chemistry and plasma processing |
Abbreviated Journal |
Plasma Chem Plasma P |
|
|
Volume |
38 |
Issue |
1 |
Pages |
1-12 |
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Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
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Abstract |
A comparative study of two plasma sources (floating-electrode dielectric barrier discharge, DBD, Drexel University; atmospheric pressure argon plasma jet, kINPen, INP Greifswald) on cancer cell toxicity was performed. Cell culture protocols, cytotoxicity assays, and procedures for assessment of hydrogen peroxide (H2O2) were standardized between both labs. The inhibitory concentration 50 (IC50) and its corresponding H2O2 deposition was determined for both devices. For the DBD, IC50 and H2O2 generation were largely dependent on the total energy input but not pulsing frequency, treatment time, or total number of cells. DBD cytotoxicity could not be replicated by addition of H2O2 alone and was inhibited by larger amounts of liquid present during the treatment. Jet plasma toxicity depended on peroxide generation as well as total cell number and amount of liquid. Thus, the amount of liquid present during plasma treatment in vitro is key in attenuating short-lived species or other physical effects from plasmas. These in vitro results suggest a role of liquids in or on tissues during plasma treatment in a clinical setting. Additionally, we provide a platform for correlation between different plasma sources for a predefined cellular response. |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
New York |
Editor |
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Language |
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Wos |
000419479000001 |
Publication Date |
2017-09-06 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
|
Series Issue |
|
Edition |
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ISSN |
0272-4324 |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
|
Impact Factor |
2.355 |
Times cited |
12 |
Open Access |
OpenAccess |
|
|
Notes |
|
Approved |
Most recent IF: 2.355 |
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|
Call Number |
UA @ lucian @ c:irua:155653 |
Serial |
5084 |
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Permanent link to this record |
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Author |
Zhang, Q.-Z.; Wang, W.Z.; Thille, C.; Bogaerts, A. |
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Title |
H2S Decomposition into H2 and S2 by Plasma Technology: Comparison of Gliding Arc and Microwave Plasma |
Type |
A1 Journal article |
|
Year |
2020 |
Publication ![sorted by Publication field, descending order (down)](img/sort_desc.gif) |
Plasma Chemistry And Plasma Processing |
Abbreviated Journal |
Plasma Chem Plasma P |
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|
Volume |
40 |
Issue |
5 |
Pages |
1163-1187 |
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Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
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Abstract |
We studied hydrogen sulfide (H2S) decomposition into hydrogen (H2) and sulfur (S2) in a gliding arc plasmatron (GAP) and microwave (MW) plasma by a combination of 0D and 2D models. The conversion, energy efficiency, and plasma distribution are examined for different discharge conditions, and validated with available experiments from literature. Furthermore, a comparison is made between GAP and MW plasma. The GAP operates at atmospheric pressure, while the MW plasma experiments to which comparison is made were performed at reduced pressure. Indeed, the MW discharge region becomes very much contracted near atmospheric pressure, at the conditions under study, as revealed by our 2D model. The models predict that thermal reactions play the most important role in H2S decomposition in both plasma types. The GAP has a higher energy efficiency but lower conversion than the MW plasma at their typical conditions. When compared at the same conversion, the GAP exhibits a higher energy efficiency and lower energy cost than the MW plasma. |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
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Editor |
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Language |
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Wos |
000543012200001 |
Publication Date |
2020-06-24 |
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Series Editor |
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Series Title |
|
Abbreviated Series Title |
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Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
0272-4324 |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
|
Impact Factor |
3.6 |
Times cited |
|
Open Access |
|
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|
Notes |
This work was supported by the Scientific Research Foundation from Dalian University of Technology, DUT19RC(3)045. We gratefully acknowledge T. Godfroid (Materia Nova) for sharing the experimental data about the MW plasma. The calculations were performed using the Turing HPC infrastructure at the CalcUA core facility of the Universiteit Antwerpen (UAntwerpen), a division of the Flemish Supercomputer Center VSC, funded by the Hercules Foundation, the Flemish Government (department EWI) and the UAntwerpen. |
Approved |
Most recent IF: 3.6; 2020 IF: 2.355 |
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|
Call Number |
PLASMANT @ plasmant @c:irua:172490 |
Serial |
6409 |
|
Permanent link to this record |
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|
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Author |
Cui, Z.; Zhou, C.; Jafarzadeh, A.; Zhang, X.; Hao, Y.; Li, L.; Bogaerts, A. |
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Title |
SF₆ degradation in γ-Al₂O₃ packed DBD system : effects of hydration, reactive gases and plasma-induced surface charges |
Type |
A1 Journal article |
|
Year |
2023 |
Publication ![sorted by Publication field, descending order (down)](img/sort_desc.gif) |
Plasma chemistry and plasma processing |
Abbreviated Journal |
|
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|
Volume |
43 |
Issue |
|
Pages |
635-656 |
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Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
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|
Abstract |
Packed-bed DBD (PB-DBD) plasmas hold promise for effective degradation of greenhouse gases like SF6. In this work, we conducted a combined experimental and theoretical study to investigate the effect of the packing surface structure and the plasma surface discharge on the SF6 degradation in a gamma-Al2O3 packing DBD system. Experimental results show that both the hydration effect of the surface (upon moisture) and the presence of excessive reactive gases in the plasma can significantly reduce the SF6 degradation, but they hardly change the discharge behavior. DFT results show that the pre-adsorption of species such as H, OH, H2O and O-2 can occupy the active sites (Al-III site) which negatively impacts the SF6 adsorption. H2O molecules pre-adsorbed at neighboring sites can promote the activation of SF6 molecules and lower the reaction barrier for the S-F bond-breaking process. Surface-induced charges and local external electric fields caused by the plasma can both improve the SF6 adsorption and enhance the elongation of the S-F bonds. Our results indicate that both the surface structure of the packing material and the plasma surface discharge are crucial for SF6 degradation performance, and the packing beads should be kept dry during the degradation. This work helps to understand the underlying mechanisms of SF6 degradation in a PB-DBD system. |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
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Editor |
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Language |
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Wos |
000966639200001 |
Publication Date |
2023-04-10 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
|
Series Issue |
|
Edition |
|
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ISSN |
0272-4324 |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
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|
Impact Factor |
3.6 |
Times cited |
|
Open Access |
OpenAccess |
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Notes |
|
Approved |
Most recent IF: 3.6; 2023 IF: 2.355 |
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Call Number |
UA @ admin @ c:irua:196033 |
Serial |
8516 |
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Permanent link to this record |
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Author |
Bogaerts, A. |
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Title |
Special Issue on “Dielectric Barrier Discharges and their Applications” in Commemoration of the 20th Anniversary of Dr. Ulrich Kogelschatz’s Work |
Type |
A1 Journal Article |
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Year |
2023 |
Publication ![sorted by Publication field, descending order (down)](img/sort_desc.gif) |
Plasma Chemistry and Plasma Processing |
Abbreviated Journal |
Plasma Chem Plasma Process |
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Volume |
43 |
Issue |
6 |
Pages |
1281-1285 |
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Keywords |
A1 Journal Article; Plasma, laser ablation and surface modeling Antwerp (PLASMANT) ; |
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Abstract |
n/a |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
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Editor |
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Language |
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Wos |
001110371000001 |
Publication Date |
2023-11-30 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
|
Series Issue |
|
Edition |
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ISSN |
0272-4324 |
ISBN |
|
Additional Links |
UA library record; WoS full record |
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|
Impact Factor |
3.6 |
Times cited |
|
Open Access |
Not_Open_Access |
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Notes |
n/a |
Approved |
Most recent IF: 3.6; 2023 IF: 2.355 |
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Call Number |
PLASMANT @ plasmant @c:irua:201387 |
Serial |
8969 |
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Permanent link to this record |
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Author |
Lin, A.; Gromov, M.; Nikiforov, A.; Smits, E.; Bogaerts, A. |
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Title |
Characterization of Non-Thermal Dielectric Barrier Discharges for Plasma Medicine: From Plastic Well Plates to Skin Surfaces |
Type |
A1 Journal Article |
|
Year |
2023 |
Publication ![sorted by Publication field, descending order (down)](img/sort_desc.gif) |
Plasma Chemistry and Plasma Processing |
Abbreviated Journal |
Plasma Chem Plasma Process |
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Volume |
43 |
Issue |
6 |
Pages |
1587-1612 |
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Keywords |
A1 Journal Article; Non-thermal plasma · Plasma medicine · Dielectric barrier discharge · Plasma diagnostics · Plasma surface interaction · In situ plasma monitoring; Plasma, laser ablation and surface modeling Antwerp (PLASMANT) ; |
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Abstract |
technologies have been expanding, and one of the most exciting and rapidly growing
applications is in biology and medicine. Most biomedical studies with DBD plasma systems are performed in vitro, which include cells grown on the surface of plastic well plates, or in vivo, which include animal research models (e.g. mice, pigs). Since many DBD systems use the biological target as the secondary electrode for direct plasma generation and treatment, they are sensitive to the surface properties of the target, and thus can be altered based on the in vitro or in vivo system used. This could consequently affect biological response from plasma treatment. Therefore, in this study, we investigated the DBD plasma behavior both in vitro (i.e. 96-well flat bottom plates, 96-well U-bottom plates, and 24-well flat bottom plates), and in vivo (i.e. mouse skin). Intensified charge coupled device (ICCD) imaging was performed and the plasma discharges were visually distinguishable between the different systems. The geometry of the wells did not affect DBD plasma generation for low application distances (≤ 2 mm), but differentially affected plasma uniformity on the bottom of the well at greater distances. Since DBD plasma treatment in vitro is rarely performed in dry wells for plasma medicine experiments, the effect of well wetness was also investigated. In all in vitro cases, the uniformity of the DBD plasma was affected when comparing wet versus dry wells, with the plasma in the wide-bottom wells appearing the most similar to plasma generated on mouse skin. Interestingly, based on quantification of ICCD images, the DBD plasma intensity per surface area demonstrated an exponential one-phase decay with increasing application distance, regardless of the in vitro or in vivo system. This trend is similar to that of the energy per pulse of plasma, which is used to determine the total plasma treatment energy for biological systems. Optical emission spectroscopy performed on the plasma revealed similar trends in radical species generation between the plastic well plates and mouse skin. Therefore, taken together, DBD plasma intensity per surface area may be a valuable parameter to be used as a simple method for in situ monitoring during biological treatment and active plasma treatment control, which can be applied for in vitro and in vivo systems. |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
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Editor |
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Language |
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Wos |
001072607700001 |
Publication Date |
2023-09-27 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
|
Series Issue |
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Edition |
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ISSN |
0272-4324 |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
|
Impact Factor |
3.6 |
Times cited |
|
Open Access |
Not_Open_Access |
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Notes |
This work was partially funded by the Research Foundation—Flanders (FWO) and supported by the following Grants: 12S9221N (A. L.), G044420N (A. L. and A. B.), and G033020N (A.B.). We would also like to thank several patrons, as part of this research was funded by donations from different donors, including Dedert Schilde vzw, Mr Willy Floren, and the Vereycken family. We would also like to acknowledge the support from the European Cooperation in Science & Technology (COST) Action on “Therapeutical applications of Cold Plasmas” (CA20114; PlasTHER). |
Approved |
Most recent IF: 3.6; 2023 IF: 2.355 |
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Call Number |
PLASMANT @ plasmant @c:irua:200285 |
Serial |
8970 |
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Permanent link to this record |
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Author |
Bogaerts, A.; Snoeckx, R.; Trenchev, G.; Wang, W. |
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Title |
Modeling for a Better Understanding of Plasma-Based CO2 Conversion |
Type |
H1 Book Chapter |
|
Year |
2018 |
Publication ![sorted by Publication field, descending order (down)](img/sort_desc.gif) |
Plasma Chemistry and Gas Conversion |
Abbreviated Journal |
|
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Volume |
|
Issue |
|
Pages |
|
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Keywords |
H1 Book Chapter; Plasma, laser ablation and surface modeling Antwerp (PLASMANT) ; |
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Abstract |
This chapter discusses modeling efforts for plasma-based CO2 conversion, which are needed to obtain better insight in the underlying mechanisms, in order to improve this application. We will discuss two types of (complementary) modeling efforts that are most relevant, that is, (i) modeling of the detailed plasma chemistry by zero-dimensional (0D) chemical kinetic models and (ii) modeling of reactor design, by 2D or 3D fluid dynamics models. By showing some characteristic calculation results of both models, for CO2 splitting and in combination with a H-source, and for packed bed DBD and gliding arc plasma, we can illustrate the type of information they can provide. |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
IntechOpen |
Place of Publication |
Rijeka |
Editor |
Britun, N.; Silva, T. |
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Language |
|
Wos |
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Publication Date |
2018-12-19 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
|
ISBN |
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Additional Links |
UA library record |
|
|
Impact Factor |
|
Times cited |
|
Open Access |
Not_Open_Access |
|
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Notes |
|
Approved |
Most recent IF: NA |
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Call Number |
PLASMANT @ plasmant @ Bogaerts18c:irua:155915 |
Serial |
5142 |
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Permanent link to this record |
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Author |
Razzokov, J.; Yusupov, M.; Bogaerts, A. |
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Title |
Possible Mechanism of Glucose Uptake Enhanced by Cold Atmospheric Plasma: Atomic Scale Simulations |
Type |
A1 Journal article |
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Year |
2018 |
Publication ![sorted by Publication field, descending order (down)](img/sort_desc.gif) |
Plasma |
Abbreviated Journal |
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Volume |
1 |
Issue |
1 |
Pages |
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Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
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Abstract |
Cold atmospheric plasma (CAP) has shown its potential in biomedical applications, such as wound healing, cancer treatment and bacterial disinfection. Recent experiments have provided evidence that CAP can also enhance the intracellular uptake of glucose molecules which is important in diabetes therapy. In this respect, it is essential to understand the underlying mechanisms of intracellular glucose uptake induced by CAP, which is still unclear. Hence, in this study we try to elucidate the possible mechanism of glucose uptake by cells by performing computer simulations. Specifically, we study the transport of glucose molecules through native and oxidized membranes. Our simulation results show that the free energy barrier for the permeation of glucose molecules across the membrane decreases upon increasing the degree of oxidized lipids in the membrane. This indicates that the glucose permeation rate into cells increases when the CAP oxidation level in the cell membrane is increased. |
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Wos |
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Publication Date |
2018-06-08 |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
2571-6182 |
ISBN |
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Additional Links |
UA library record |
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Impact Factor |
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Times cited |
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Open Access |
OpenAccess |
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Notes |
The computational work was carried out using the Turing HPC infrastructure at the CalcUA core facility of the Universiteit Antwerpen, a division of the Flemish Supercomputer Center VSC, funded by the Hercules Foundation, the Flemish Government (department EWI), and the Universiteit Antwerpen. |
Approved |
Most recent IF: NA |
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Call Number |
PLASMANT @ plasmant @ plasma1010011c:irua:152176 |
Serial |
4990 |
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Permanent link to this record |
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Author |
Gorbanev, Y.; Golda, J.; Gathen, V.S.; Bogaerts, A |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Applications of the COST Plasma Jet: More than a Reference Standard |
Type |
A1 Journal article |
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Year |
2019 |
Publication ![sorted by Publication field, descending order (down)](img/sort_desc.gif) |
Plasma |
Abbreviated Journal |
Plasma |
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Volume |
2 |
Issue |
3 |
Pages |
316-327 |
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Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
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Abstract |
The rapid advances in the field of cold plasma research led to the development of many plasma jets for various purposes. The COST plasma jet was created to set a comparison standard between different groups in Europe and the world. Its physical and chemical properties are well studied, and diagnostics procedures are developed and benchmarked using this jet. In recent years, it has been used for various research purposes. Here, we present a brief overview of the reported applications of the COST plasma jet. Additionally, we discuss the chemistry of the plasma-liquid systems with this plasma jet, and the properties that make it an indispensable system for plasma research. |
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Publication Date |
2019-07-12 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
2571-6182 |
ISBN |
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Additional Links |
UA library record |
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Impact Factor |
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Times cited |
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Open Access |
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Notes |
We would like to thank Deborah O’Connell (York Plasma Institute, Department of Physics, University of York, United Kingdom) and Angela Privat-Maldonado (PLASMANT, University of Antwerp) for useful discussions. |
Approved |
Most recent IF: NA |
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Call Number |
PLASMANT @ plasmant @c:irua:161628 |
Serial |
5287 |
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Permanent link to this record |
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Author |
Wang, L.; Miao, Q.; Niinemets, Ü.; Gielis, J.; Shi, P. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Quantifying the variation in the geometries of the outer rims of corolla tubes of Vinca major L |
Type |
A1 Journal article |
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Year |
2022 |
Publication ![sorted by Publication field, descending order (down)](img/sort_desc.gif) |
Plants |
Abbreviated Journal |
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Volume |
11 |
Issue |
15 |
Pages |
1987-12 |
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Keywords |
A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
Many geometries of plant organs can be described by the Gielis equation, a polar coordinate equation extended from the superellipse equation, . Here, r is the polar radius corresponding to the polar angle φ; m is a positive integer that determines the number of angles of the Gielis curve when φ ∈ [0 to 2π); and the rest of the symbols are parameters to be estimated. The pentagonal radial symmetry of calyxes and corolla tubes in top view is a common feature in the flowers of many eudicots. However, prior studies have not tested whether the Gielis equation can depict the shapes of corolla tubes. We sampled randomly 366 flowers of Vinca major L., among which 360 had five petals and pentagonal corolla tubes, and six had four petals and quadrangular corolla tubes. We extracted the planar coordinates of the outer rims of corolla tubes (in top view) (ORCTs), and then fitted the data with two simplified versions of the Gielis equation with k = 1 and m = 5: (Model 1), and (Model 2). The adjusted root mean square error (RMSEadj) was used to evaluate the goodness of fit of each model. In addition, to test whether ORCTs are radially symmetrical, we correlated the estimates of n2 and n3 in Model 1 on a log-log scale. The results validated the two simplified Gielis equations. The RMSEadj values for all corolla tubes were smaller than 0.05 for both models. The numerical values of n2 and n3 were demonstrated to be statistically equal based on the regression analysis, which suggested that the ORCTs of V. major are radially symmetrical. It suggests that Model 1 can be replaced by the simpler Model 2 for fitting the ORCT in this species. This work indicates that the pentagonal or quadrangular corolla tubes (in top view) can both be modeled by the Gielis equation and demonstrates that the pentagonal or quadrangular corolla tubes of plants tend to form radial symmetrical geometries during their development and growth. |
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Place of Publication |
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Wos |
000839115100001 |
Publication Date |
2022-08-01 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
2223-7747 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
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Times cited |
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Open Access |
OpenAccess |
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Notes |
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Approved |
Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:189315 |
Serial |
7200 |
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Permanent link to this record |
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Author |
Yao, W.; Niinemets, Ü.; Yao, W.; Gielis, J.; Schrader, J.; Yu, K.; Shi, P. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Comparison of two simplified versions of the Gielis equation for describing the shape of bamboo leaves |
Type |
A1 Journal article |
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Year |
2022 |
Publication ![sorted by Publication field, descending order (down)](img/sort_desc.gif) |
Plants |
Abbreviated Journal |
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Volume |
11 |
Issue |
22 |
Pages |
3058-11 |
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Keywords |
A1 Journal article; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
Bamboo is an important component in subtropical and tropical forest communities. The plant has characteristic long lanceolate leaves with parallel venation. Prior studies have shown that the leaf shapes of this plant group can be well described by a simplified version (referred to as SGE-1) of the Gielis equation, a polar coordinate equation extended from the superellipse equation. SGE-1 with only two model parameters is less complex than the original Gielis equation with six parameters. Previous studies have seldom tested whether other simplified versions of the Gielis equation are superior to SGE-1 in fitting empirical leaf shape data. In the present study, we compared a three-parameter Gielis equation (referred to as SGE-2) with the two-parameter SGE-1 using the leaf boundary coordinate data of six bamboo species within the same genus that have representative long lanceolate leaves, with >300 leaves for each species. We sampled 2000 data points at approximately equidistant locations on the boundary of each leaf, and estimated the parameters for the two models. The root–mean–square error (RMSE) between the observed and predicted radii from the polar point to data points on the boundary of each leaf was used as a measure of the model goodness of fit, and the mean percent error between the RMSEs from fitting SGE-1 and SGE-2 was used to examine whether the introduction of an additional parameter in SGE-1 remarkably improves the model’s fitting. We found that the RMSE value of SGE-2 was always smaller than that of SGE-1. The mean percent errors among the two models ranged from 7.5% to 20% across the six species. These results indicate that SGE-2 is superior to SGE-1 and should be used in fitting leaf shapes. We argue that the results of the current study can be potentially extended to other lanceolate leaf shapes. |
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Wos |
000887783400001 |
Publication Date |
2022-11-14 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
2223-7747 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
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Times cited |
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Open Access |
OpenAccess |
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Notes |
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Approved |
Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:191859 |
Serial |
7289 |
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Permanent link to this record |
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Author |
Huang, L.; Ratkowsky, D.A.; Hui, C.; Gielis, J.; Lian, M.; Shi, P. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Inequality measure of leaf area distribution for a drought-tolerant landscape plant |
Type |
A1 Journal article |
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Year |
2023 |
Publication ![sorted by Publication field, descending order (down)](img/sort_desc.gif) |
Plants |
Abbreviated Journal |
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Volume |
12 |
Issue |
17 |
Pages |
3143-11 |
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Keywords |
A1 Journal article; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
Measuring the inequality of leaf area distribution per plant (ILAD) can provide a useful tool for quantifying the influences of intra- and interspecific competition, foraging behavior of herbivores, and environmental stress on plants’ above-ground architectural structures and survival strategies. Despite its importance, there has been limited research on this issue. This paper aims to fill this gap by comparing four inequality indices to measure ILAD, using indices for quantifying household income that are commonly used in economics, including the Gini index (which is based on the Lorenz curve), the coefficient of variation, the Theil index, and the mean log deviation index. We measured the area of all leaves for 240 individual plants of the species Shibataea chinensis Nakai, a drought-tolerant landscape plant found in southern China. A three-parameter performance equation was fitted to observations of the cumulative proportion of leaf area vs. the cumulative proportion of leaves per plant to calculate the Gini index for each individual specimen of S. chinensis. The performance equation was demonstrated to be valid in describing the rotated and right shifted Lorenz curve, given that >96% of root-mean-square error values were smaller than 0.004 for 240 individual plants. By examining the correlation between any of the six possible pairs of indices among the Gini index, the coefficient of variation, the Theil index, and the mean log deviation index, the data show that these indices are closely related and can be used interchangeably to quantify ILAD. |
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Wos |
001065193100001 |
Publication Date |
2023-08-31 |
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Series Editor |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
2223-7747 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
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Times cited |
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Open Access |
OpenAccess |
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Notes |
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Approved |
Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:199564 |
Serial |
8886 |
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Permanent link to this record |
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Author |
Gao, J.; Huang, W.; Gielis, J.; Shi, P. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Plant morphology and function, geometric morphometrics, and modelling : decoding the mathematical secrets of plants |
Type |
Editorial |
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Year |
2023 |
Publication ![sorted by Publication field, descending order (down)](img/sort_desc.gif) |
Plants |
Abbreviated Journal |
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Volume |
12 |
Issue |
21 |
Pages |
3724-2 |
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Keywords |
Editorial; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
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Corporate Author |
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Place of Publication |
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Wos |
001103336500001 |
Publication Date |
2023-10-30 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
2223-7747 |
ISBN |
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Additional Links |
UA library record; WoS full record |
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Impact Factor |
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Times cited |
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Open Access |
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Notes |
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Approved |
Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:201173 |
Serial |
9072 |
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Permanent link to this record |
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Author |
Van Hoorebeke, L.; Leroux, O.; Leroux, F.; Mastroberti, A.A.; Santos-Silva, F.; Van Loo, D.; Bagniewska-Zadworna, A.; Bals, S.; Popper, Z.A.; de Araujo Mariath, J.E. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Heterogeneity of silica and glycan-epitope distribution in epidermal idioblast cell walls in Adiantum raddianum laminae |
Type |
A1 Journal article |
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Year |
2013 |
Publication ![sorted by Publication field, descending order (down)](img/sort_desc.gif) |
Planta |
Abbreviated Journal |
Planta |
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Volume |
237 |
Issue |
6 |
Pages |
1453-1464 |
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Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
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Abstract |
Laminae of Adiantum raddianum Presl., a fern belonging to the family Pteridaceae, are characterised by the presence of epidermal fibre-like cells under the vascular bundles. These cells were thought to contain silica bodies, but their thickened walls leave no space for intracellular silica suggesting it may actually be deposited within their walls. Using advanced electron microscopy in conjunction with energy dispersive X-ray microanalysis we showed the presence of silica in the cell walls of the fibre-like idioblasts. However, it was specifically localised to the outer layers of the periclinal wall facing the leaf surface, with the thick secondary wall being devoid of silica. Immunocytochemical experiments were performed to ascertain the respective localisation of silica deposition and glycan polymers. Epitopes characteristic for pectic homogalacturonan and the hemicelluloses xyloglucan and mannan were detected in most epidermal walls, including the silica-rich cell wall layers. The monoclonal antibody, LM6, raised against pectic arabinan, labelled the silica-rich primary wall of the epidermal fibre-like cells and the guard cell walls, which were also shown to contain silica. We hypothesise that the silicified outer wall layers of the epidermal fibre-like cells support the lamina during cell expansion prior to secondary wall formation. This implies that silicification does not impede cell elongation. Although our results suggest that pectic arabinan may be implicated in silica deposition, further detailed analyses are needed to confirm this. The combinatorial approach presented here, which allows correlative screening and in situ localisation of silicon and cell wall polysaccharide distribution, shows great potential for future studies. |
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Wos |
000319474200004 |
Publication Date |
2013-02-21 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0032-0935;1432-2048; |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
3.361 |
Times cited |
16 |
Open Access |
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Notes |
We are grateful to the Laboratorio de Anatomia Vegetal of Universidade Federal do Rio Grande do Sul (UFRGS) and the Centro de Microscopia Eletronica (CME) of UFRGS. Thanks to Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) for the undergraduate degree grant provided (PIBIC) for the fourth author and research grant and support for the last one. The third author is grateful to Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES) for providing financial support (PRODOC). We acknowledge Christiane de Queiroz Lopes and Moema Queiroz (CME) for the technical assistance. We are indebted to Paul Knox (Centre for Plant Sciences, University of Leeds, UK) for kindly providing the monoclonal antibodies used in this study. The Fund for Scientific Research-Flanders (FWO) is acknowledged for the doctoral grant to D. Van Loo (G.0100.08). |
Approved |
Most recent IF: 3.361; 2013 IF: 3.376 |
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Call Number |
UA @ lucian @ c:irua:109641 |
Serial |
1419 |
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Permanent link to this record |
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Author |
Zanin, L.; Tomasi, N.; Rizzardo, C.; Gottardi, S.; Terzano, R.; Alfeld, M.; Janssens, K.; De Nobili, M.; Mimmo, T.; Cesco, S. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Iron allocation in leaves of Fe-deficient cucumber plants fed with natural Fe complexes |
Type |
A1 Journal article |
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Year |
2015 |
Publication ![sorted by Publication field, descending order (down)](img/sort_desc.gif) |
Physiologia plantarum |
Abbreviated Journal |
Physiol Plantarum |
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Volume |
154 |
Issue |
1 |
Pages |
82-94 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
Iron (Fe) sources available for plants in the rhizospheric solution are mainly a mixture of complexes between Fe and organic ligands, including phytosiderophores (PS) and water-extractable humic substances (WEHS). In comparison with the other Fe sources, Fe-WEHS are more efficiently used by plants, and experimental evidences show that Fe translocation contributes to this better response. On the other hand, very little is known on the mechanisms involved in Fe allocation in leaves. In this work, physiological and molecular processes involved in Fe distribution in leaves of Fe-deficient Cucumis sativus supplied with Fe-PS or Fe-WEHS up to 5days were studied combining different techniques, such as radiochemical experiments, synchrotron micro X-ray fluorescence, real-time reverse transcription polymerase chain reaction and in situ hybridization. In Fe-WEHS-fed plants, Fe was rapidly (1day) allocated into the leaf veins, and after 5days, Fe was completely transferred into interveinal cells; moreover, the amount of accumulated Fe was much higher than with Fe-PS. This redistribution in Fe-WEHS plants was associated with an upregulation of genes encoding a ferric(III)-chelate reductase (FRO), a Fe2+ transporter (IRT1) and a natural resistance-associated macrophage protein (NRAMP). The localization of FRO and IRT1 transcripts next to the midveins, beside that of NRAMP in the interveinal area, may suggest a rapid and efficient response induced by the presence of Fe-WEHS in the extra-radical solution for the allocation in leaves of high amounts of Fe. In conclusion, Fe is more efficiently used when chelated to WEHS than PS and seems to involve Fe distribution and gene regulation of Fe acquisition mechanisms operating in leaves. |
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Corporate Author |
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Wos |
000353067500007 |
Publication Date |
2014-10-07 |
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Series Editor |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0031-9317 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
3.33 |
Times cited |
14 |
Open Access |
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Notes |
; Research was supported by grants from Italian MIUR (FIRB-Programma 'Futuro in Ricerca') and Free University of Bolzano (TN5056). Synchrotron experiments at HASYLAB were financially supported by the European Community-Research Infrastructure Action under the FP6 'Structuring the European Research Area' Program I (Integrating Activity on Synchrotron and Free Electron Laser Science; project: contract RII3-CT-2004-506008). We thank Karen Appel for her scientific and technical support in obtaining the experimental data at Beamline L (HASYLAB, DESY, Hamburg, Germany). ; |
Approved |
Most recent IF: 3.33; 2015 IF: 3.138 |
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Call Number |
UA @ admin @ c:irua:132500 |
Serial |
5678 |
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Permanent link to this record |
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Author |
Zi, L.; Reynaert, S.; Nijs, I.; De Boeck, H.; Verbruggen, E.; Beemster, G.T.S.; Asard, H.; Abdelgawad, H. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Biochemical composition changes can be linked to the tolerance of four grassland species under more persistent precipitation regimes |
Type |
A1 Journal article |
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Year |
2023 |
Publication ![sorted by Publication field, descending order (down)](img/sort_desc.gif) |
Physiologia plantarum |
Abbreviated Journal |
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Volume |
175 |
Issue |
6 |
Pages |
e14083-13 |
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Keywords |
A1 Journal article; Integrated Molecular Plant Physiology Research (IMPRES); Plant and Ecosystems (PLECO) – Ecology in a time of change |
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Abstract |
Climate models suggest that the persistence of summer precipitation regimes (PRs) is on the rise, characterized by both longer dry and longer wet durations. These PR changes may alter plant biochemical composition and thereby their economic and ecological characteristics. However, impacts of PR persistence have primarily been studied at the community level, largely ignoring the biochemistry of individual species. Here, we analyzed biochemical components of four grassland species with varying sensitivity to PR persistence (Holcus lanatus, Phleum pratense, Lychnis flos-cuculi, Plantago lanceolata) along a range of increasingly persistent PRs (longer consecutive dry and wet periods) in a mesocosm experiment. The more persistent PRs decreased nonstructural sugars, whereas they increased lignin in all species, possibly reducing plant quality. The most sensitive species Lychnis seemed less capable of altering its biochemical composition in response to altered PRs, which may partly explain its higher sensitivity. The more tolerant species may have a more robust and dynamic biochemical network, which buffers the effects of changes in individual biochemical components on biomass. We conclude that the biochemical composition changes are important determinants for plant performance under increasingly persistent precipitation regimes. |
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Corporate Author |
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Thesis |
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Place of Publication |
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Language |
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Wos |
001108556200001 |
Publication Date |
2023-11-25 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0031-9317 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
6.4 |
Times cited |
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Open Access |
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Notes |
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Approved |
Most recent IF: 6.4; 2023 IF: 3.33 |
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Call Number |
UA @ admin @ c:irua:202003 |
Serial |
9190 |
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Permanent link to this record |
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Author |
Schattschneider, P.; Schachinger, T.; Verbeeck, J. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Ein Whirlpool aus Elektronen: Transmissions-Elektronenmikroskopie mit Elektronenwirbeln |
Type |
A1 Journal article |
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Year |
2018 |
Publication ![sorted by Publication field, descending order (down)](img/sort_desc.gif) |
Physik in unserer Zeit |
Abbreviated Journal |
Phys. Unserer Zeit |
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Volume |
49 |
Issue |
1 |
Pages |
22-28 |
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Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
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Abstract |
Elektronen bewegen sich im feldfreien Raum immer gleichförmig geradlinig, so steht es in den Lehrbüchern. Falsch, sagen wir. Elektronen lassen sich zu Tornados formen, die theoretisch Nanopartikel zerreißen können. In der Elektronenmikroskopie eingesetzt, versprechen sie neue Erkenntnisse in der Festkörperphysik. |
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Publisher |
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Editor |
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Wos |
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Publication Date |
2018-01-02 |
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Series Title |
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Edition |
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ISSN |
0031-9252 |
ISBN |
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Additional Links |
UA library record |
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Times cited |
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Open Access |
Not_Open_Access |
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Notes |
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Approved |
Most recent IF: NA |
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Call Number |
UA @ lucian @c:irua:148159 |
Serial |
4806 |
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Permanent link to this record |