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| Author | Van Echelpoel, R. | ||||
| Title | Making an impact with voltammetric illicit drug sensors : bridging the gap between fundamental lab research and on-site application | Type | Doctoral thesis | ||
| Year | 2023 | Publication | Abbreviated Journal | ||
| Volume | Issue | Pages | xxviii, 194 p. | ||
| Keywords | Doctoral thesis; Pharmacology. Therapy; Engineering sciences. Technology; Antwerp Electrochemical and Analytical Sciences Lab (A-Sense Lab) | ||||
Abstract  |
Illicit drugs are harmful substances, posing a threat to the health and safety of society. Policies, such as supply reduction and harm reduction, are in place to combat the illicit drug problem. Science can play a substantial role in this fight, by providing tools that enable these policies to be successfully enforced. One example are on-site detection tools, i.e. sensors that allow the on-site identification of an illicit drug in a sample of interest. Several technologies, such as color tests and portable spectroscopic techniques, are currently employed for this goal. Although these are valuable techniques, there is an opportunity for voltammetry, an electrochemical technique, to make an impactful addition to this repertoire of on-site detection tools. Despite its attractive features (low-cost, portable, short analysis time, indifference to color,...), voltammetric illicit drug sensor have failed to make an impact in real scenarios. The work outlined in this PhD thesis aims to change this by bringing the technology from the lab to the field. Strategic choices, fueled by feedback from end-users, were made to further develop those specific aspects of the technology that previously haltered the technology to fulfill its potential. A detection algorithm was introduced that converts the voltammetric output into a clear-cut interpretation thereof, opening up the technology to end-users without prior knowledge of the technology. A sensor that allows qualitative and quantitative detection of the psychoactive drug MDMA was introduced, and importantly, validated on a large set of 212 confiscated samples. A state-of-the art mobile application and adequate sampling methodology were developed, alongside other, often more practical studies and product developments, to evolve the technology into a product that truly creates value for end-users. Important steps towards multidrug detection were made with a festival sensor and a flowchart based on visual appearance that ties together a variety of voltammetric single sensors into a single multidrug sensing approach. Last but not least, multiple valorization aspects were researched, including a market study and an analysis to determine the optimal commercialization strategy. Overall, this PhD thesis has facilitated the transition of the voltammetric illicit drug sensing technology from lab to on-site application. The final application creates value for end-users, and is ready to make an impact in real on-site scenarios. | ||||
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| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | Publication Date | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | 987-90-5728-534-7 | Additional Links | UA library record | |
| Impact Factor | Times cited | Open Access | |||
| Notes | Approved | Most recent IF: NA | |||
| Call Number | UA @ admin @ c:irua:200601 | Serial | 9055 | ||
| Permanent link to this record | |||||
| Author | Florea, A.; De Jong, M.; De Wael, K. | ||||
| Title | Electrochemical strategies for the detection of forensic drugs | Type | A1 Journal article | ||
| Year | 2018 | Publication | Current opinion in electrochemistry | Abbreviated Journal | |
| Volume | 11 | Issue | 11 | Pages | 34-40 |
| Keywords | A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) | ||||
| Abstract |
Illicit drugs consumption and trafficking is spread worldwide and remains an increasing challenge for local authorities. Forensic drugs and their metabolites are released into wastewaters due to human excretion after illegal consumption of drugs and occasionally due to disposal of clandestine laboratory wastes into sewage systems, being recently classified as the latest group of emerging pollutants. Hence, it is essential to have efficient and accurate methods to detect these type of compounds in seized street samples, biological fluids and wastewaters in order to reduce and prevent trafficking and consumption and negative effects on aquatic systems. Electrochemical strategies offer a fast, portable, low-cost and accurate alternative to chromatographic and spectrometric methods, for the analysis of forensic drugs and metabolites in different matrices. Recent electrochemical strategies applied to the detection of illicit drugs in wastewaters, biological fluids and street samples are presented in this review, together with the impact of drug consumption on the environment. | ||||
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| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000453710900007 | Publication Date | 2018-07-21 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2451-9103; 2451-9111 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | Times cited | 7 | Open Access | ||
| Notes | ; This project has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie Grant Agreement No. 753223 Narcoreader. The authors also acknowledge financial support from BELSPO, IOF-SBO and UAntwerp. ; | Approved | Most recent IF: NA | ||
| Call Number | UA @ admin @ c:irua:152366 | Serial | 5597 | ||
| Permanent link to this record | |||||
| Author | Joosten, F.; Parrilla, M.; van Nuijs, A.L.N.; Ozoemena, K.Id; De Wael, K. | ||||
| Title | Electrochemical detection of illicit drugs in oral fluid : potential for forensic drug testing | Type | A1 Journal article | ||
| Year | 2022 | Publication | Electrochimica acta | Abbreviated Journal | |
| Volume | 2022 | Issue | 436 | Pages | 141309-141315 |
| Keywords | A1 Journal article; Pharmacology. Therapy; Engineering sciences. Technology; Toxicological Centre; Antwerp Electrochemical and Analytical Sciences Lab (A-Sense Lab) | ||||
| Abstract |
Illicit drugs continue to pose a serious threat to society and public health. Drug (ab)use is linked to organised crime and violence. Therefore, to fight the so-called war on drugs, police and law enforcement agencies need to be equipped with accurate and efficient sensors for the detection of illicit drugs and drug use. Even though colour tests (for powders) and lateral flow immunoassays (for biological samples) lack accuracy, they are relied upon for fast and easy on-site detection. Alternatively, in recent years, there has been an increasing interest in electrochemical sensors as a promising technique for the rapid and accurate on-site detection of illicit drugs. While a myriad of literature exists on the use of electrochemical sensors for drug powder analysis, literature on their use for the detection of drug use in biological samples is scarce. To this end, this review presents an overview of strategies for the electrochemical detection of illicit drugs in oral fluid. First, pharmacokinetics of drugs in oral fluid and the legal limit dilemma regarding the analytical cut-offs for roadside drug detection tests are elaborated to present the reader with the background knowledge required to develop such a test. Subsequently, an overview of electrochemical strategies developed for the detection of illicit drugs in oral fluid is given. Importantly, key challenges to address in the development of roadside tests are highlighted to improve the design of the next electrochemical devices and to bring them to the field. Overall, electrochemical sensors for illicit drugs detection in oral fluid show promise to disrupt current strategies for roadside testing. | ||||
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| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000882442300001 | Publication Date | 2022-10-13 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0013-4686 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | Times cited | Open Access | OpenAccess | ||
| Notes | Approved | no | |||
| Call Number | UA @ admin @ c:irua:191107 | Serial | 8855 | ||
| Permanent link to this record | |||||
| Author | Dragan, A.-M.; Truta, F.M.; Tertis, M.; Florea, A.; Schram, J.; Cernat, A.; Feier, B.; De Wael, K.; Cristea, C.; Oprean, R. | ||||
| Title | Electrochemical fingerprints of illicit drugs on graphene and multi-walled carbon nanotubes | Type | A1 Journal article | ||
| Year | 2021 | Publication | Frontiers In Chemistry | Abbreviated Journal | Front Chem |
| Volume | 9 | Issue | Pages | 641147 | |
| Keywords | A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) | ||||
| Abstract |
Illicit drugs use and abuse remains an increasing challenge for worldwide authorities and, therefore, it is important to have accurate methods to detect them in seized samples, biological fluids and wastewaters. They are recently classified as the latest group of emerging pollutants as their consumption increased tremendously in recent years. Nanomaterials have gained much attention over the last decade in the development of sensors for a myriad of applications. The applicability of these nanomaterials, functionalized or not, significantly increases and it is therefore highly suitable for use in the detection of illicit drugs. We have assessed the suitability of various nanoplatforms, such as graphene (GPH), multi-walled carbon nanotubes (MWCNTs), gold nanoparticles (AuNPs) and platinum nanoparticles (PtNPs) for the electrochemical detection of illicit drugs. GPH and MWCNTs were chosen as the most suitable platforms and cocaine, 3,4-methylendioxymethamfetamine (MDMA), 3-methylmethcathinone (MMC) and alpha-pyrrolidinovalerophenone (PVP) were tested. Due to the hydrophobicity of the nanomaterials-based platforms which led to low signals, two strategies were followed namely, pretreatment of the electrodes in sulfuric acid by cyclic voltammetry and addition of Tween 20 to the detection buffer. Both strategies led to an increase in the oxidation signal of illicit drugs. Binary mixtures of illicit drugs with common adulterants found in street samples were also investigated. The proposed strategies allowed the sensitive detection of illicit drugs in the presence of most adulterants. The suitability of the proposed sensors for the detection of illicit drugs in spiked wastewaters was finally assessed. | ||||
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| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000634708900001 | Publication Date | 2021-03-16 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2296-2646 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 3.994 | Times cited | Open Access | OpenAccess | |
| Notes | Approved | Most recent IF: 3.994 | |||
| Call Number | UA @ admin @ c:irua:177704 | Serial | 7861 | ||
| Permanent link to this record | |||||
| Author | Legrand, S.; Ricciardi, P.; Nodari, L.; Janssens, K. | ||||
| Title | Non-invasive analysis of a 15th century illuminated manuscript fragment: point-based vs imaging spectroscopy | Type | A1 Journal article | ||
| Year | 2018 | Publication | Microchemical journal | Abbreviated Journal | Microchem J |
| Volume | 138 | Issue | 138 | Pages | 162-172 |
| Keywords | A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) | ||||
| Abstract |
Illuminated manuscript fragments are some of the best preserved objects of Western cultural heritage. Therefore, scholars are limited to non-invasive – often point-based – methods, to answer questions on material usage, technique, origin and previous treatments. These powerful methods yield specific information; however, the information is limited to the number of points analyzed. Imaging spectroscopies such as MA-XRF and MA-rFTIR combine specificity with the power of imaging, resulting in distribution images that are interpretable by non-spectroscopists and the public at large. In this paper the possible added value of using imaging spectroscopy is discussed. Do these methods yield the same results as an extensive point-based spectroscopic campaign and can they bring novel information? As a case study, a 15th century illuminated manuscript fragment is employed in order to explore the differences between these approaches and present an inventory of their advantages and limitations. (C) 2018 Elsevier B.V. All rights reserved. | ||||
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| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000428103000019 | Publication Date | 2018-01-05 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0026-265x; 0026-265x | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 3.034 | Times cited | 12 | Open Access | |
| Notes | ; The authors wish to thank Dr. Stella Panayotova, Keeper of Manuscripts and Printed Books at the Fitzwilliam Museum, for allowing technical analysis of the manuscript fragment, and Dr. Suzanne Reynolds, Assistant Keeper of Manuscripts and Printed Books, for crucial help in identifying the text on the reverse of the fragment and its significance. We also wish to thank Prof. Andrew Beeby and Dr. Catherine Nicholson for their complementary Raman analyses. The warm hospitality of the Hamilton Kerr Institute is also gratefully acknowledged. The Esmee Fairbairn Collections Fund and Cambridge University's Returning Carers Scheme provided funding for part of this research. SL and KJ acknowledge support from project METOX (contract BR/165/A6/MetOx), BELSPO, Brussels. ; | Approved | Most recent IF: 3.034 | ||
| Call Number | UA @ admin @ c:irua:151563 | Serial | 5749 | ||
| Permanent link to this record | |||||
| Author | Alfeld, M.; Laurenze-Landsberg, C.; Denker, A.; Janssens, K.; Noble, P. | ||||
| Title | Neutron activation autoradiography and scanning macro-XRF of Rembrandt van Rijn's Susanna and the Elders (Gemaldegalerie Berlin) : a comparison of two methods for imaging of historical paintings with elemental contrast | Type | A1 Journal article | ||
| Year | 2015 | Publication | Applied physics A : materials science & processing | Abbreviated Journal | Appl Phys A-Mater |
| Volume | 119 | Issue | 3 | Pages | 795-805 |
| Keywords | A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) | ||||
| Abstract |
Imaging methods with elemental contrast are of great value for the investigation of historical paintings, as they allow for study of sub-surface layers that provide insight into a painting's creation process. Two of the most important methods are neutron activation autoradiography (NAAR) and scanning macro-XRF (MA-XRF). Given the differences between these methods in the fundamental physical phenomena exploited, a theoretical comparison of their capabilities is difficult and until now a critical comparison of their use on the same painting is missing. In this paper, we present a study of Rembrandt van Rijn's painting Susanna and the Elders from the Gemaldegalerie in Berlin employing both techniques. The painting features a considerable number of overpainted features and a wide range of pigments with different elemental tracers, including earth pigments (Mn/Fe), Azurite (Cu), lead white (Pb), vermilion (Hg) and smalt (Co, As). MA-XRF can detect all elements above Si (Z = 14), suffers from few spectral overlaps and can be performed in a few tens of hours in situ, i.e. in a museum. NAAR requires the stay of the painting at a research facility for several weeks, and inter-element interferences can be difficult to resolve. Also, only a limited number of elements contribute to the acquired autoradiographs, most notably Mn, Cu, As, Co, Hg and P. However, NAAR provides a higher lateral resolution and is less hindered by absorption in covering layers, which makes it the only method capable of visualizing P in lower paint layers. | ||||
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| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000354189200001 | Publication Date | 2015-04-13 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0947-8396 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 1.455 | Times cited | 11 | Open Access | |
| Notes | ; This research was supported by the Interuniversity Attraction Poles Programme-Belgian Science Policy (IUAP VI/16). The text also presents the results of GOA “XANES meets ELNES” (Research Fund University of Antwerp, Belgium) and from FWO (Brussels, Belgium) Project Nos. G.0704.08 and G.01769.09. M. Alfeld received from 2009 to 2013 a PhD fellowship of the Research Foundation-Flanders (FWO). ; | Approved | Most recent IF: 1.455; 2015 IF: 1.704 | ||
| Call Number | UA @ admin @ c:irua:126034 | Serial | 5745 | ||
| Permanent link to this record | |||||
| Author | de Nolf, W.; Vanmeert, F.; Janssens, K. | ||||
| Title | XRDUA : crystalline phase distribution maps by two-dimensional scanning and tomographic (micro) X-ray powder diffraction | Type | A1 Journal article | ||
| Year | 2014 | Publication | Journal of applied crystallography | Abbreviated Journal | |
| Volume | 47 | Issue | 3 | Pages | 1107-1117 |
| Keywords | A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) | ||||
| Abstract |
Imaging of crystalline phase distributions in heterogeneous materials, either plane projected or in virtual cross sections of the object under investigation, can be achieved by scanning X-ray powder diffraction employing X-ray micro beams and X-ray-sensitive area detectors. Software exists to convert the two-dimensional powder diffraction patterns that are recorded by these detectors to one-dimensional diffractograms, which may be analysed by the broad variety of powder diffraction software developed by the crystallography community. However, employing these tools for the construction of crystalline phase distribution maps proves to be very difficult, especially when employing micro-focused X-ray beams, as most diffraction software tools have mainly been developed having structure solution in mind and are not suitable for phase imaging purposes. XRDUA has been developed to facilitate the execution of the complete sequence of data reduction and interpretation steps required to convert large sequences of powder diffraction patterns into a limited set of crystalline phase maps in an integrated fashion. | ||||
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| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000336738500031 | Publication Date | 2014-05-28 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0021-8898 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | Times cited | 62 | Open Access | ||
| Notes | ; The authors would like to thank the synchrotron beamline staff at ID15 (ESRF, Grenoble, France), MicroXAS (SLS, Villigen, Switzerland) and PO6/BL-L (Petra III/Hasylab, Hamburg, Germany) for accommodating the experiments presented in this paper. Support from FWO 'Big Science' project G0C1213N as well as from the BELSPO project 'S2ART' (SD/RI/04A) is acknowledged. ; | Approved | Most recent IF: NA | ||
| Call Number | UA @ admin @ c:irua:117758 | Serial | 5920 | ||
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| Author | Leroux, F.; Bladt, E.; Timmermans, J.-P.; Van Tendeloo, G.; Bals, S. | ||||
| Title | Annular dark-field transmission electron microscopy for low contrast materials | Type | A1 Journal article | ||
| Year | 2013 | Publication | Microscopy and microanalysis | Abbreviated Journal | Microsc Microanal |
| Volume | 19 | Issue | 3 | Pages | 629-634 |
| Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
| Abstract |
Imaging soft matter by transmission electron microscopy (TEM) is anything but straightforward. Recently, interest has grown in developing alternative imaging modes that generate contrast without additional staining. Here, we present a dark-field TEM technique based on the use of an annular objective aperture. Our experiments demonstrate an increase in both contrast and signal-to-noise ratio in comparison to conventional bright-field TEM. The proposed technique is easy to implement and offers an alternative imaging mode to investigate soft matter. | ||||
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| Publisher | Place of Publication | Cambridge, Mass. | Editor | ||
| Language | Wos | 000319126300014 | Publication Date | 2013-04-04 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1431-9276;1435-8115; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 1.891 | Times cited | 5 | Open Access | |
| Notes | 262348 Esmi; Fwo G002410n G018008 | Approved | Most recent IF: 1.891; 2013 IF: 2.161 | ||
| Call Number | UA @ lucian @ c:irua:108712 | Serial | 133 | ||
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| Author | Jochems, P.; Satyawali, Y.; Diels, L.; Dejonghe, W. | ||||
| Title | Enzyme immobilization on/in polymeric membranes : status, challenges and perspectives in biocatalytic membrane reactors (BMRs) | Type | A1 Journal article | ||
| Year | 2011 | Publication | Green chemistry : cutting-edge research for a greener sustainable future | Abbreviated Journal | |
| Volume | 13 | Issue | 7 | Pages | 1609-1623 |
| Keywords | A1 Journal article; Sustainable Energy, Air and Water Technology (DuEL) | ||||
| Abstract |
Immobilization of enzymes is beneficial in terms of improving the process economics by enabling enzyme re-use and enhancing overall productivity and robustness. Increasingly, membranes are thought to be good supports for enzyme immobilization. These resulting biocatalytic membranes are integrated in reactors known as biocatalytic membrane reactors (BMRs) which enable the integration of biocatalysis and separation. Often the available commercial membranes require modifications to make them suitable for enzyme immobilization. Different immobilization techniques can be used on such suitable membranes, but no general rules exist for making a choice between them. Despite the advantages of BMR application, there are some issues which need to be addressed in order to achieve up-scaling of such systems. In this review, the different aspects of enzyme immobilization on membranes are discussed to show the complexity of this interdisciplinary technology. In addition, the existing issues which require further investigation are highlighted. | ||||
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| Language | Wos | 000292450600002 | Publication Date | 2011-05-26 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1463-9262; 1463-9270 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | Times cited | Open Access | |||
| Notes | Approved | no | |||
| Call Number | UA @ admin @ c:irua:89567 | Serial | 7930 | ||
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| Author | Tytgat, T.; Smits, M.; Lenaerts, S.; Verbruggen, S.W. | ||||
| Title | Immobilization of TiO2 into self-supporting photocatalytic foam : influence of calcination temperature | Type | A1 Journal article | ||
| Year | 2014 | Publication | International journal of applied ceramic technology | Abbreviated Journal | Int J Appl Ceram Tec |
| Volume | 11 | Issue | 4 | Pages | 714-722 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) | ||||
| Abstract |
Immobilization of photocatalytic powder is crucial to obtain industrially relevant purification processes. To achieve this goal, self-supporting TiO2 foams were manufactured by a polyacrylamide gel process. These gels were calcined at different temperatures to study the effect of the calcination temperature on foam characteristics (rigidity, crystallinity, and porosity) and its influence on photocatalytic activity. The results show that an optimal degradation is achieved for those foams calcined between 700 and 800°C. Calcination at higher temperatures results in a steep decrease in activity, explained by stability issues of the material due to formation of Na2SO4 phases and a larger rutile fraction. | ||||
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| Language | Wos | 000339051500012 | Publication Date | 2013-04-24 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1546-542x | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 1.048 | Times cited | 2 | Open Access | |
| Notes | ; This work was supported by a PhD grant from the Institute of Innovation by Science and Technology in Flanders (IWT). ; | Approved | Most recent IF: 1.048; 2014 IF: 1.320 | ||
| Call Number | UA @ admin @ c:irua:117295 | Serial | 5960 | ||
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| Author | Trashin, S.; De Jong, M.; Meynen, V.; Dewilde, S.; De Wael, K. | ||||
| Title | Attaching redox proteins onto electrode surfaces by bis-silane | Type | A1 Journal article | ||
| Year | 2016 | Publication | ChemElectroChem | Abbreviated Journal | Chemelectrochem |
| Volume | 3 | Issue | 7 | Pages | 1035-1038 |
| Keywords | A1 Journal article; Laboratory of adsorption and catalysis (LADCA); AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) | ||||
| Abstract |
Immobilization of redox proteins on electrode surfaces is of special interest for mechanistic studies and applications because of a well-controlled redox state of protein molecules by a polarized electrode and fast electron transfer kinetics, free from diffusion limitation. Here, bis-organosilane (1,2-bis(trimethoxysilyl)ethane) was applied as a fresh solution in a pH 7 phosphate buffer without use of any organic solvent, sol-gel or mesoporous bulk matrix. A short aging period of 30 minutes before deposition on the electrodes was optimal for the immobilization of proteins. Three redox proteins (cytochrome c, neuroglobin and GLB-12) were confined to the gold surface of electrodes with high coverages and stability, indicating that the suggested technique is simple, efficient and generic in nature. | ||||
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| Language | Wos | 000380043500001 | Publication Date | 2016-03-09 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2196-0216 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.136 | Times cited | 4 | Open Access | |
| Notes | ; The authors thank the Fund for Scientific Research-Flanders (FWO) (Grant G.0687.13) and the GOA-BOF UA 2013-2016 (project ID 28312) for funding. ; | Approved | Most recent IF: 4.136 | ||
| Call Number | UA @ admin @ c:irua:132628 | Serial | 5485 | ||
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| Author | Nematollahi, P.; Ma, H.; Schneider, W.F.; Neyts, E.C. | ||||
| Title | DFT and microkinetic comparison of ru-doped porphyrin-like graphene and nanotubes toward catalytic formic acid decomposition and formation | Type | A1 Journal article | ||
| Year | 2021 | Publication | Journal Of Physical Chemistry C | Abbreviated Journal | J Phys Chem C |
| Volume | 125 | Issue | 34 | Pages | 18673-18683 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) | ||||
| Abstract |
Immobilization of single metal atoms on a solid host opens numerous possibilities for catalyst designs. If that host is a two-dimensional sheet, sheet curvature becomes a design parameter potentially complementary to host and metal composition. Here, we use a combination of density functional theory calculations and microkinetic modeling to compare the mechanisms and kinetics of formic acid decomposition and formation, chosen for their relevance as a potential hydrogen storage medium, over single Ru atoms anchored to pyridinic nitrogen in a planar graphene flake (RuN4-G) and curved carbon nanotube (RuN4-CNT). Activation barriers are lowered and the predicted turnover frequencies are increased over RuN4-CNT relative to RuN4-CNT. The results highlight the potential of curvature control as a means to achieve high performance and robust catalysts. | ||||
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| Language | Wos | 000693413400013 | Publication Date | 2021-08-22 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1932-7447; 1932-7455 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.536 | Times cited | Open Access | OpenAccess | |
| Notes | Approved | Most recent IF: 4.536 | |||
| Call Number | UA @ admin @ c:irua:181538 | Serial | 7805 | ||
| Permanent link to this record | |||||
| Author | Satyawali, Y.; Van Roy, S.; Roevens, A.; Meynen, V.; Mullens, S.; Jochems, P.; Doyen, W.; Cauwenberghs, L.; Dejonghe, W. | ||||
| Title | Characterization and analysis of the adsorption immobilization mechanism of \beta-galactosidase on metal oxide powders | Type | A1 Journal article | ||
| Year | 2013 | Publication | RSC advances | Abbreviated Journal | |
| Volume | 3 | Issue | 46 | Pages | 24054-24062 |
| Keywords | A1 Journal article; Laboratory of adsorption and catalysis (LADCA); Sustainable Energy, Air and Water Technology (DuEL) | ||||
| Abstract |
Immobilization of the enzymes plays a vital role in enhancing their applicability in a wide range of applications, thus ensuring the use of sustainable enzymatic processes over the conventional chemical processes on an industrial scale. This study provides the background information for the selection and screening of inorganic metal oxide (MO) powders for their use as fillers in mixed matrix membranes for enzyme immobilization as the future aim. A total of 13 MOs, ranging in size from 0.01 μm to <5 μm, were tested for their performance as a support for enzyme (β-galactosidase) immobilization via adsorption. Alumina appeared to be the best performing MO with the amount and activity of the immobilized enzyme being 64 mg g−1 and up to 288 U g−1, respectively. The amount of immobilized enzyme on alumina (α-Al2O3 C and γ-Al2O3) was >3 times higher than ZrO2 (used as a reference MO in this study). Upon heat treatment at 900 °C, up to 15%, 52% and 42% decline was observed in the amount of immobilized enzyme in case of alumina metal oxides (MOs), ZrO2 and TiO2, respectively. The results suggested that both isoelectric point and surface area of the MO influence the immobilization. The most important observation in this study was that the bonding of the enzyme to the MO surface seems to be mediated by the bonding/interaction of the buffer to the enzyme. | ||||
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| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000326745100030 | Publication Date | 2013-10-11 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2046-2069 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | Times cited | Open Access | |||
| Notes | Approved | no | |||
| Call Number | UA @ admin @ c:irua:111300 | Serial | 7607 | ||
| Permanent link to this record | |||||
| Author | Nematollahi, P.; Neyts, E.C. | ||||
| Title | Linking bi-metal distribution patterns in porous carbon nitride fullerene to its catalytic activity toward gas adsorption | Type | A1 Journal article | ||
| Year | 2021 | Publication | Nanomaterials | Abbreviated Journal | Nanomaterials-Basel |
| Volume | 11 | Issue | 7 | Pages | 1794 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) | ||||
| Abstract |
Immobilization of two single transition metal (TM) atoms on a substrate host opens numerous possibilities for catalyst design. If the substrate contains more than one vacancy site, the combination of TMs along with their distribution patterns becomes a design parameter potentially complementary to the substrate itself and the bi-metal composition. By means of DFT calculations, we modeled three dissimilar bi-metal atoms (Ti, Mn, and Cu) doped into the six porphyrin-like cavities of porous C24N24 fullerene, considering different bi-metal distribution patterns for each binary complex, viz. TixCuz@C24N24, TixMny@C24N24, and MnyCuz@C24N24 (with x, y, z = 0-6). We elucidate whether controlling the distribution of bi-metal atoms into the C24N24 cavities can alter their catalytic activity toward CO2, NO2, H-2, and N-2 gas capture. Interestingly, Ti2Mn4@C24N24 and Ti2Cu4@C24N24 complexes showed the highest activity and selectively toward gas capture. Our findings provide useful information for further design of novel few-atom carbon-nitride-based catalysts. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000676140500001 | Publication Date | 2021-07-09 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2079-4991 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 3.553 | Times cited | Open Access | OpenAccess | |
| Notes | Approved | Most recent IF: 3.553 | |||
| Call Number | UA @ admin @ c:irua:180372 | Serial | 8174 | ||
| Permanent link to this record | |||||
| Author | Walters, A.A.; Santacana-Font, G.; Li, J.; Routabi, N.; Qin, Y.; Claes, N.; Bals, S.; Tzu-Wen Wang, J.; Al-Jamal, K.T. | ||||
| Title | Nanoparticle-MediatedIn SituMolecular Reprogramming of Immune Checkpoint Interactions for Cancer Immunotherapy | Type | A1 Journal article | ||
| Year | 2021 | Publication | Acs Nano | Abbreviated Journal | Acs Nano |
| Volume | 15 | Issue | 11 | Pages | 17549-17564 |
| Keywords | A1 Journal article; Pharmacology. Therapy; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) | ||||
| Abstract |
Immune checkpoint blockade involves targeting immune regulatory molecules with antibodies. Preclinically, complex multiantibody regimes of both inhibitory and stimulatory targets are a promising candidate for the next generation of immunotherapy. However, in this setting, the antibody platform may be limited due to excessive toxicity caused by off target effects as a result of systemic administration. RNA can be used as an alternate to antibodies as it can both downregulate immunosuppressive checkpoints (siRNA) or induce expression of immunostimulatory checkpoints (mRNA). In this study, we demonstrate that the combination of both siRNA and mRNA in a single formulation can simultaneously knockdown and induce expression of immune checkpoint targets, thereby reprogramming the tumor microenvironment from immunosuppressive to immunostimulatory phenotype. To achieve this, RNA constructs were synthesized and formulated into stable nucleic acid lipid nanoparticles (SNALPs); the SNALPs produced were 140−150 nm in size with >80% loading efficiency. SNALPs could transfect macrophages and B16F10 cells in vitro resulting in 75% knockdown of inhibitory checkpoint (PDL1) expression and simultaneously express high levels of stimulatory checkpoint (OX40L) with minimal toxicity. Intratumoral treatment with the proposed formulation resulted in statistically reduced tumor growth, a greater density of CD4+ and CD8+ infiltrates in the tumor, and immune activation within tumor-draining lymph nodes. These data suggest that a single RNA-based formulation can successfully reprogram multiple immune checkpoint interactions on a cellular level. Such a candidate may be able to replace future immune checkpoint therapeutic regimes composed of both stimulatory- and inhibitory-receptor-targeting antibodies. |
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| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000747115200039 | Publication Date | 2021-11-23 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1936-0851 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 13.942 | Times cited | 11 | Open Access | OpenAccess |
| Notes | A.A.W. is the grateful recipient of a Maplethorpe Fellowship. K.A.J. acknowledges funding from the British Council (Newton Fund, 337313), Wellcome Trust (WT103913), and the Cancer Research UK King’s Health Partners Centre at King’s College London. Financial support is acknowledged from the European Commission under the Horizon 2020 Programme, by means of Grant Agreement No. 731019 (EUSMI). Images were drawn on BioRender.com. | Approved | Most recent IF: 13.942 | ||
| Call Number | EMAT @ emat @c:irua:183950 | Serial | 6829 | ||
| Permanent link to this record | |||||
| Author | Chowdhury, M.S.; Rösch, E.L.; Esteban, D.A.; Janssen, K.-J.; Wolgast, F.; Ludwig, F.; Schilling, M.; Bals, S.; Viereck, T.; Lak, A. | ||||
| Title | Decoupling the Characteristics of Magnetic Nanoparticles for Ultrahigh Sensitivity | Type | A1 Journal article | ||
| Year | 2023 | Publication | Nano letters | Abbreviated Journal | |
| Volume | 23 | Issue | 1 | Pages | 58-65 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) | ||||
| Abstract |
Immunoassays exploiting magnetization dynamics of magnetic nanoparticles are highly promising for mix-and-measure, quantitative, and point-of-care diagnostics. However, how single-core magnetic nanoparticles can be employed to reduce particle concentration and concomitantly maximize assay sensitivity is not fully understood. Here, we design monodisperse Néel and Brownian relaxing magnetic nanocubes (MNCs) of different sizes and compositions. We provide insights into how to decouple physical properties of these MNCs to achieve ultrahigh sensitivity. We find that tri-component-based Zn0.06 Co0.80Fe2.14 O4 particles, with out-of-phase to initial magnetic susceptibility χ /χ ratio of 0.47 out of 0.50 for magnetically blocked ideal particles, show the ultrahigh magnetic sensitivity by providing rich magnetic particle spectroscopy (MPS) harmonics spectrum despite bearing lower saturation magnetization than di-component Zn0.1Fe2.9O4 having high saturation magnetization. The Zn0.06Co0.80Fe2.14O4 MNCs, coated with catechol-based polyethylene glycol ligands, measured by our benchtop MPS show three orders of magnitude better particle LOD than that of commercial nanoparticles of comparable size. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000907816300001 | Publication Date | 2023-01-11 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1530-6984 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 10.8 | Times cited | 1 | Open Access | OpenAccess |
| Notes | Deutsche Forschungsgemeinschaft, DFG RTG 1952 ; Joachim Herz Stiftung; H2020 Research Infrastructures, 823717 ; | Approved | Most recent IF: 10.8; 2023 IF: 12.712 | ||
| Call Number | EMAT @ emat @c:irua:193406 | Serial | 7248 | ||
| Permanent link to this record | |||||
| Author | Lin, A.G.; Xiang, B.; Merlino, D.J.; Baybutt, T.R.; Sahu, J.; Fridman, A.; Snook, A.E.; Miller, V. | ||||
| Title | Non-thermal plasma induces immunogenic cell death in vivo in murine CT26 colorectal tumors | Type | A1 Journal article | ||
| Year | 2018 | Publication | Oncoimmunology | Abbreviated Journal | |
| Volume | 7 | Issue | 9 | Pages | e1484978 |
| Keywords | A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) | ||||
| Abstract |
Immunogenic cell death is characterized by the emission of danger signals that facilitate activation of an adaptive immune response against dead-cell antigens. In the case of cancer therapy, tumor cells undergoing immunogenic death promote cancer-specific immunity. Identification, characterization, and optimization of stimuli that induce immunogenic cancer cell death has tremendous potential to improve the outcomes of cancer therapy. In this study, we show that non-thermal, atmospheric pressure plasma can be operated to induce immunogenic cell death in an animal model of colorectal cancer. In vitro, plasma treatment of CT26 colorectal cancer cells induced the release of classic danger signals. Treated cells were used to create a whole-cell vaccine which elicited protective immunity in the CT26 tumor mouse model. Moreover, plasma treatment of subcutaneous tumors elicited emission of danger signals and recruitment of antigen presenting cells into tumors. An increase in T cell responses targeting the colorectal cancer-specific antigen guanylyl cyclase C (GUCY2C) were also observed. This study provides the first evidence that non-thermal plasma is a bone fide inducer of immunogenic cell death and highlights its potential for clinical translation for cancer immunotherapy. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000443993100030 | Publication Date | 2018-06-12 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2162-4011; 2162-402x | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | Times cited | 28 | Open Access | Not_Open_Access | |
| Notes | Approved | Most recent IF: NA | |||
| Call Number | UA @ lucian @ c:irua:155651 | Serial | 5119 | ||
| Permanent link to this record | |||||
| Author | Seuntjens, D.; Carvajal Arroyo, J.M.; Van Tendeloo, M.; Chatzigiannidou, I.; Molina, J.; Nop, S.; Boon, N.; Vlaeminck, S.E. | ||||
| Title | Mainstream partial nitritation/anammox with integrated fixed-film activated sludge : combined aeration and floc retention time control strategies limit nitrate production | Type | A1 Journal article | ||
| Year | 2020 | Publication | Bioresource Technology | Abbreviated Journal | Bioresource Technol |
| Volume | 314 | Issue | Pages | 123711-10 | |
| Keywords | A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) | ||||
| Abstract |
Implementation of mainstream partial nitritation/anammox (PN/A) can lead to more sustainable and cost-effective sewage treatment. For mainstream PN/A reactor, an integrated fixed-film activated sludge (IFAS) was operated (26 °C). The effects of floccular aerobic sludge retention time (AerSRT_floc), a novel aeration strategy, and N-loading rate were tested to optimize the operational strategy. The best performance was observed with a low, but sufficient AerSRTfloc (~7d) and continuous aeration with two alternating dissolved oxygen setpoints: 10 min at 0.07–0.13 mg O2 L−1 and 5 min at 0.27–0.43 mg O2 L−1. Nitrogen removal rates were 122 ± 23 mg N L−1 d−1, and removal efficiencies 73 ± 13%. These conditions enabled flocs to act as nitrite sources while the carriers were nitrite sinks, with low abundance of nitrite oxidizing bacteria. The operational strategies in the source-sink framework can serve as a guideline for successful operation of mainstream PN/A reactors. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000558601200004 | Publication Date | 2020-06-24 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0960-8524 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 11.4 | Times cited | 3 | Open Access | |
| Notes | ; D.S. was supported by a Ph.D. grant from the Institute for the Promotion of Innovation by Science and Technology in Flanders (IWTVlaanderen, SB-131769). M.V.T. was supported by a Ph.D. SB Fellowship from the Research Foundation -Flanders (FWO-Vlaanderen, 1S03218N). ; | Approved | Most recent IF: 11.4; 2020 IF: 5.651 | ||
| Call Number | UA @ admin @ c:irua:170054 | Serial | 6559 | ||
| Permanent link to this record | |||||
| Author | Barbiellini, B.; Kuriplach, J.; Saniz, R. | ||||
| Title | Study of rechargeable batteries using advanced spectroscopic and computational techniques | Type | Editorial | ||
| Year | 2021 | Publication | Condensed Matter | Abbreviated Journal | |
| Volume | 6 | Issue | 3 | Pages | 26 |
| Keywords | Editorial; Electron microscopy for materials research (EMAT) | ||||
| Abstract |
Improving the efficiency and longevity of energy storage systems based on Li- and Na-ion rechargeable batteries presents a major challenge. The main problems are essentially capacity loss and limited cyclability. These effects are due to a hierarchy of factors spanning various length and time scales, interconnected in a complex manner. As a consequence, and in spite of several decades of research, a proper understanding of the ageing process has remained somewhat elusive. In recent years, however, combinations of advanced spectroscopy techniques and first-principles simulations have been applied with success to tackle this problem. In this Special Issue, we are pleased to present a selection of articles that, by precisely applying these methods, unravel key aspects of the reduction-oxidation reaction and intercalation processes. Furthermore, the approaches presented provide improvements to standard diagnostic and characterisation techniques, enabling the detection of possible Li-ion flow bottlenecks causing the degradation of capacity and cyclability. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000699368400001 | Publication Date | 2021-07-26 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2410-3896 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | Times cited | Open Access | OpenAccess | ||
| Notes | Approved | Most recent IF: NA | |||
| Call Number | UA @ admin @ c:irua:181630 | Serial | 6890 | ||
| Permanent link to this record | |||||
| Author | Alfeld, M.; Siddons, D.P.; Janssens, K.; Dik, J.; Woll, A.; Kirkham, R.; van de Wetering, E. | ||||
| Title | Visualizing the 17th century underpainting in Portrait of an Old Man by Rembrandt van Rijn using synchrotron-based scanning macro-XRF | Type | A1 Journal article | ||
| Year | 2013 | Publication | Applied physics A : materials science & processing | Abbreviated Journal | Appl Phys A-Mater |
| Volume | 111 | Issue | 1 | Pages | 157-164 |
| Keywords | A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) | ||||
| Abstract |
In 17th century Old Master Paintings, the underpainting generally refers to the first sketch of a composition. The underpainting is applied to a prepared ground using a monochrome, brown oil paint to roughly indicate light, shade and contours. So far, methods to visualize the underpainting-other than in localized cross-sections-have been very limited. Neither infrared reflectography nor neutron induced autoradiography have proven to be practical, adequate visualization tools. Thus, although of fundamental interest in the understanding of a painting's genesis, the underpainting has virtually escaped all imaging efforts. In this contribution we will show that 17th century underpainting may consist of a highly heterogeneous mixture of pigments, including copper pigments. We suggest that this brown pigment mixture is actually the recycled left-over of a palette scraping. With copper as the heaviest exclusive elemental component, we will hence show in a case study on a Portrait of an Old Man attributed to Rembrandt van Rijn how scanning macro-XRF can be used to efficiently visualize the underpainting below the surface painting and how this information can contribute to the discussion of the painting's authenticity. | ||||
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| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000316075700019 | Publication Date | 2012-12-14 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0947-8396 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 1.455 | Times cited | 26 | Open Access | |
| Notes | ; This research was supported by the SSD programme of BELSPO, Brussels (project S2-ART). The text also presents results of GOA 'XANES meets ELNES' (Research Fund, University of Antwerp, Belgium) and from FWO (Brussels, Belgium) projects nos. G.0704.08 and G.01769.09. Further, the research leading to these results has received funding from the European Community's Seventh Framework Programme (FP7/2007-2013) under grant agreement no. 226716. M. Alfeld receives a Ph.D. fellowship of the Research Foundation-Flanders (FWO). Use of the National Synchrotron Light Source, Brookhaven National Laboratory, was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-98CH10886. We acknowledge the assistance of C. Ryan, CSIRO Australia, in the preparation of the elemental maps using GeoPIXE and Rene Gerritsen (http://www.renegerritsen.nl) in providing photographs, XRR and IRR of the painting. We thank Sullivan Entertainment for documenting part of this project in their TV documentary 'Out of the shadows'. ; | Approved | Most recent IF: 1.455; 2013 IF: 1.694 | ||
| Call Number | UA @ admin @ c:irua:108263 | Serial | 5908 | ||
| Permanent link to this record | |||||
| Author | Croitoru, M.D.; Vagov, A.; Shanenko, A.A.; Axt, V.M. | ||||
| Title | The Cooper problem in nanoscale : enhancement of the coupling due to confinement | Type | A1 Journal article | ||
| Year | 2012 | Publication | Superconductor science and technology | Abbreviated Journal | Supercond Sci Tech |
| Volume | 25 | Issue | 12 | Pages | 124001-124005 |
| Keywords | A1 Journal article; Condensed Matter Theory (CMT) | ||||
| Abstract |
In 1956 Cooper demonstrated (1956 Phys. Rev. 104 1189) that, no matter how weak the attraction is, two electrons in three-dimensional (3D) space just above the Fermi sea could be bound. In this work we investigate the influence of confinement on the binding energy of a Cooper pair. We show that confinement-induced modification of the Fermi sea results in a significant increase of the binding energy, when the bottom of an energy subband is very close to the Fermi surface. | ||||
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| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Bristol | Editor | ||
| Language | Wos | 000311418100004 | Publication Date | 2012-11-08 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0953-2048;1361-6668; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 2.878 | Times cited | 9 | Open Access | |
| Notes | ; MDC acknowledges support by the European Community under the Marie Curie IEF Action (Grant Agreement No. PIEF-GA-2009-235486-ScQSR). ; | Approved | Most recent IF: 2.878; 2012 IF: 2.758 | ||
| Call Number | UA @ lucian @ c:irua:105121 | Serial | 3573 | ||
| Permanent link to this record | |||||
| Author | Adami, O.-A.; Jelić, Ž.L.; Xue, C.; Abdel-Hafiez, M.; Hackens, B.; Moshchalkov, V.V.; Milošević, M.V.; Van de Vondel, J.; Silhanek, A.V. | ||||
| Title | Onset, evolution, and magnetic braking of vortex lattice instabilities in nanostructured superconducting films | Type | A1 Journal article | ||
| Year | 2015 | Publication | Physical review: B: condensed matter and materials physics | Abbreviated Journal | Phys Rev B |
| Volume | 92 | Issue | 92 | Pages | 134506 |
| Keywords | A1 Journal article; Condensed Matter Theory (CMT) | ||||
| Abstract |
In 1976, Larkin and Ovchinnikov [Zh. Eksp. Teor. Fiz. 68, 1915 (1975) [Sov. Phys.–JETP 41, 960 (1976)]] predicted that vortex matter in superconductors driven by an electrical current can undergo an abrupt dynamic transition from a flux-flow regime to a more dissipative state at sufficiently high vortex velocities. Typically, this transition manifests itself as a large voltage jump at a particular current density, so-called instability current density J∗, which is smaller than the depairing current. By tuning the effective pinning strength in Al films, using an artificial periodic pinning array of triangular holes, we show that a unique and well-defined instability current density exists if the pinning is strong, whereas a series of multiple voltage transitions appear in the relatively weaker pinning regime. This behavior is consistent with time-dependent Ginzburg-Landau simulations, where the multiple-step transition can be unambiguously attributed to the progressive development of vortex chains and subsequently phase-slip lines. In addition, we explore experimentally the magnetic braking effects, caused by a thick Cu layer deposited on top of the superconductor, on the instabilities and the vortex ratchet effect. | ||||
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| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000362433200003 | Publication Date | 2015-10-08 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1098-0121 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 3.836 | Times cited | 21 | Open Access | |
| Notes | ACKNOWLEDGMENTS: This work was partially supported by the Fonds de la Recherche Scientifique-FNRS, the Methusalem Funding of the Flemish Government, the Research Foundation-Flanders (FWO), and COST Action MP1201. The work of A.V.S. and Z.L.J. is partially supported by “Mandat d’Impulsion Scientifique” MIS F.4527.13 of the F.R.S.-FNRS. B.H. is an associate researcher of the Fonds de la Recherche Scientifique- FNRS. The authors thank J. Cuppens for the data analysis at the early stage of this work, R. Delamare for his valuable help during the fabrication of the samples, and G. Grimaldi for helpful discussions. | Approved | Most recent IF: 3.836; 2015 IF: 3.736 | ||
| Call Number | c:irua:128747 | Serial | 3981 | ||
| Permanent link to this record | |||||
| Author | Compernolle, T.; Van Passel, S.; Weyens, N.; Vangronsveld, J.; Lebbe, L.; Thewys, T. | ||||
| Title | Groundwater remediation and the cost effectiveness of phytoremediation | Type | A1 Journal article | ||
| Year | 2012 | Publication | International Journal Of Phytoremediation | Abbreviated Journal | Int J Phytoremediat |
| Volume | 14 | Issue | 9 | Pages | 861-877 |
| Keywords | A1 Journal article; Economics; Engineering Management (ENM) | ||||
| Abstract |
In 1999, phytoremediation was applied at the site of a Belgian car factory to contain two BTEX plumes. This case study evaluates the cost effectiveness of phytoremediation compared to other remediation options, applying a tailored approach for economic evaluation. Generally, when phytoremediation is addressed as being cost effective, the cost effectiveness is only determined on an average basis. This study however, demonstrates that an incremental analysis may provide a more nuanced conclusion. When the cost effectiveness is calculated on an average basis, in this particular case, the no containment strategy (natural attenuation) has the lowest cost per unit mass removed and hence, should be preferred. However, when the cost effectiveness is determined incrementally, no containment should only be preferred if the value of removing an extra gram of contaminant mass is lower than 320. Otherwise, a permeable reactive barrier should be adopted. A similar analysis is provided for the effect determined on the basis of remediation time. Phytoremediation is preferred compared to no containment if reaching the objective one year earlier is worth 7 000. | ||||
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| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000304914700004 | Publication Date | 2012-06-07 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1522-6514 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 1.77 | Times cited | 12 | Open Access | |
| Notes | ; ; | Approved | Most recent IF: 1.77; 2012 IF: 1.179 | ||
| Call Number | UA @ admin @ c:irua:129862 | Serial | 6206 | ||
| Permanent link to this record | |||||
| Author | Caen, J.; Cagno, S.; Janssens, K. | ||||
| Title | The stained-glass panel depicting the anointing at Bethany : art historical research, technical analysis, and treatment | Type | H2 Book chapter | ||
| Year | 2013 | Publication | Abbreviated Journal | ||
| Volume | Issue | Pages | 247-257 | ||
| Keywords | H2 Book chapter; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Antwerp Cultural Heritage Sciences (ARCHES) | ||||
| Abstract |
In 2008, Museum M in Louvain (Flanders, Belgium) acquired a panel depicting The Anointing at Bethany that is believed once to have adorned the citys former Charterhouse. The panel required conservation treatment, which was preceded by a thorough art-historical and technical examination. It emerged that comparable panels are kept at the Metropolitan Museum of Art and the Riverside Church in New York. Chemical analyses show most of the glass in the panel to have a typical 16th century high-limelow-alkali composition. The conservation treatment was based on the evaluation of these findings and focused very strongly on enhancing the aesthetic balance for an improved reading of the panel. | ||||
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| Publisher | Place of Publication | Editor | |||
| Language | Wos | Publication Date | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | 978-90-8932-113-8 | Additional Links | UA library record | |
| Impact Factor | Times cited | Open Access | |||
| Notes | Approved | Most recent IF: NA | |||
| Call Number | UA @ admin @ c:irua:114605 | Serial | 5847 | ||
| Permanent link to this record | |||||
| Author | Bjørnåvold, A.; David, M.; Mermet-Bijon, V.; Beaumais, O.; Crastes dit Sourd, R.; Van Passel, S.; Martinet, V. | ||||
| Title | To tax or to ban? A discrete choice experiment to elicit public preferences for phasing out glyphosate use in agriculture | Type | A1 Journal article | ||
| Year | 2023 | Publication | PLoS ONE | Abbreviated Journal | |
| Volume | 18 | Issue | 3 | Pages | 1-12 |
| Keywords | A1 Journal article; Economics; Engineering Management (ENM) | ||||
| Abstract |
In 2023, the European Union will vote on the reauthorization of glyphosate use, renewed in 2017 despite concern on impacts on the environment and public health. A ban is supported by several Member States but rejected by most farmers. What are citizens’ preferences to phase out glyphosate? To assess whether taxation could be an alternative to a ban, we conducted a discrete choice experiment in five European countries. Our results reveal that the general public is strongly willing to pay for a reduction in glyphosate use. However, while 75.5% of respondents stated to support a ban in the pre-experimental survey, experimental results reveal that in 73.35% of cases, earmarked taxation schemes are preferred when they lead to a strong reduction in glyphosate use for an increase in food price lower than that induced by a ban. When glyphosate reduction is balanced against its costs, a tax may be preferred. | ||||
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| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000985134400084 | Publication Date | 2023-03-16 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1932-6203 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | Times cited | Open Access | |||
| Notes | Approved | no | |||
| Call Number | UA @ admin @ c:irua:196999 | Serial | 9236 | ||
| Permanent link to this record | |||||
| Author | Parchomenko, A.; Nelen, D.; Gillabel, J.; Vrancken, K.C.M.; Rechberger, H. | ||||
| Title | Evaluation of the resource effectiveness of circular economy strategies through multilevel statistical entropy analysis | Type | A1 Journal article | ||
| Year | 2020 | Publication | Resources Conservation And Recycling | Abbreviated Journal | Resour Conserv Recy |
| Volume | 161 | Issue | Pages | 104925-16 | |
| Keywords | A1 Journal article; Sustainable Energy, Air and Water Technology (DuEL) | ||||
| Abstract |
In a circular economy (CE), materials, components and products should be kept at the highest level of functionality, while phenomena like dilution, mixing and contamination, often referred to as the loss of resources, should be avoided. One method that can assess the performance of systems to concentrate or avoid dilution of resources is Statistical Entropy Analysis (SEA). Up till now, the method has been applied on the substance level (elements and compounds) only, but showed its applicability to various scales and a variety of systems. Further development of the method allowed to consider information on the product, component and material levels, which makes the method applicable to different combinations of CE strategies, both destructive (e.g. recycling) and non-destructive (e.g. reuse). The method is demonstrated on a simplified vehicle life-cycle, which is modeled through four component groups and six materials. It shows that the method allows to evaluate different CE strategies and identify critical stages which lead to the most severe resource and functionality losses. Based on the methods results, it is possible to determine a perfect circularity reference level, representing a system state that preserves functionality and avoids resource losses. The introduction of a circularity reference level enables the establishment of a framework for resource effectiveness in which diluting and concentrating effects of activities (e.g. sorting) are quantified. The distance of a system to an ideal circular state determines the deviation from a resource-effective system that maintains the original product functionality over a maximum period of time, with minimal efforts. | ||||
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| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000569610400032 | Publication Date | 2020-06-20 | |
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| Series Volume | Series Issue | Edition | |||
| ISSN | 0921-3449 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 13.2 | Times cited | Open Access | ||
| Notes | ; The authors would like to acknowledge the support of Prof. David Laner for his valuable inputs, as well as the financial support of Vito (Flemish Institute for Technological Research) and Altstoff Recycling Austria AG (ARA). ; | Approved | Most recent IF: 13.2; 2020 IF: 3.313 | ||
| Call Number | UA @ admin @ c:irua:171925 | Serial | 6512 | ||
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| Author | Jones, P.T.; Geysen, D.; Tielemans, Y.; Van Passel, S.; Pontikes, Y.; Blanpain, B.; Quaghebeur, M.; Hoekstra, N. | ||||
| Title | Enhanced landfill mining in view of multiple resource recovery : a critical review | Type | A1 Journal article | ||
| Year | 2013 | Publication | Journal Of Cleaner Production | Abbreviated Journal | J Clean Prod |
| Volume | 55 | Issue | Pages | 45-55 | |
| Keywords | A1 Journal article; Engineering sciences. Technology; Engineering Management (ENM) | ||||
| Abstract |
In a circular economy material loops are closed by recycling of pre-consumer manufacturing scrap/residues, urban mining of End-of-Life products and landfill mining of historic (and future) urban waste streams. However, in the past landfill mining was not performed with a focus on resource recovery. This paper addresses this gap by introducing the concept of Enhanced Landfill Mining, defined as the safe conditioning, excavation and integrated valorization of landfilled waste streams as both materials and energy, using innovative transformation technologies and respecting the most stringent social and ecological criteria. The feasibility of ELFM is studied by synthesizing the research on the Closing the Circle project, the first ELFM project targeting the 18 million metric ton landfill in Houthalen-Helchteren in the East of Belgium. It is argued that Environmental Impact Assessments of ELFM projects should be wide in scope and time. Embedded in a broad resource management perspective, the worldwide potential of ELFM is highlighted, in terms of climate gains, materials and energy utilization, job creation and land reclamation. The potential is quantified for the EU-27 with its 150,000-500,000 landfills. However, for ELFM to reach its full potential, strategic policy decisions and tailored support systems, including combined incentives for material recycling, energy utilization and nature restoration, are required. (c) 2012 Elsevier Ltd. All rights reserved. | ||||
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| Language | Wos | 000322802300005 | Publication Date | 2012-05-26 | |
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| Series Volume | Series Issue | Edition | |||
| ISSN | 0959-6526 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 5.715 | Times cited | 144 | Open Access | |
| Notes | ; The authors acknowledge the European and Flemish authorities for the funding of, respectively, the EFRO project 'Closing the Circle, a demonstration of Enhanced Landfill Mining (ELFM)' and the IWT O&O Project 100517. The authors acknowledge the ELFM Consortium Members, including Karel Van Acker, Tom Van Gerven, Marc Craps, Alain De Vocht, Johan Eyckmans, Maarten Dubois, Koen Sips, Luk Umans, Maurice Ballard, Lieve Helsen and Anouk Bosmans. The authors acknowledge the members of the EU ELMIRE Consortium, in particular Hans Groot, Raffaello Cossu, William Hogland and Rainer Stegmann. Finally, the authors thank the reviewers for their critical comments and suggested improvements. ; | Approved | Most recent IF: 5.715; 2013 IF: 3.590 | ||
| Call Number | UA @ admin @ c:irua:127549 | Serial | 6195 | ||
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| Author | Fernández Becerra, V.; Milošević, M.V. | ||||
| Title | Dynamics of skyrmions and edge states in the resistive regime of mesoscopic p-wave superconductors | Type | A1 Journal article | ||
| Year | 2017 | Publication | Physica: C : superconductivity | Abbreviated Journal | Physica C |
| Volume | 533 | Issue | 533 | Pages | 91-95 |
| Keywords | A1 Journal article; Condensed Matter Theory (CMT) | ||||
| Abstract |
In a mesoscopic sample of a chiral p-wave superconductor, novel states comprising skyrmions and edge states have been stabilized in out-of-plane applied magnetic field. Using the time-dependent Ginzburg-Landau equations we shed light on the dynamic response of such states to an external applied current. Three different regimes are obtained, namely, the superconducting (stationary), resistive (non-stationary) and normal regime, similarly to conventional s-wave superconductors. However, in the resistive regime and depending on the external current, we found that moving skyrmions and the edge state behave distinctly different from the conventional kinematic vortex, thereby providing new fingerprints for identification of p-wave superconductivity. (C) 2016 Elsevier B.V. All rights reserved. | ||||
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| Publisher | Place of Publication | Amsterdam | Editor | ||
| Language | Wos | 000395954100014 | Publication Date | 2016-07-07 | |
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| Series Volume | Series Issue | Edition | |||
| ISSN | 0921-4534 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 1.404 | Times cited | 3 | Open Access | |
| Notes | Approved | Most recent IF: 1.404 | |||
| Call Number | UA @ lucian @ c:irua:142534 | Serial | 4592 | ||
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| Author | Geurts, R.; Milošević, M.V.; Peeters, F.M. | ||||
| Title | Topologically trapped vortex molecules in Bose-Einstein condensates | Type | A1 Journal article | ||
| Year | 2008 | Publication | Physical review : A : atomic, molecular and optical physics | Abbreviated Journal | Phys Rev A |
| Volume | 78 | Issue | 5 | Pages | 053610,1-053610,5 |
| Keywords | A1 Journal article; Condensed Matter Theory (CMT) | ||||
| Abstract |
In a numerical experiment based on Gross-Pitaevskii formalism, we demonstrate unique topological quantum coherence in optically trapped Bose-Einstein condensates (BECs). Exploring the fact that vortices in a rotating BEC can be pinned by a geometric arrangement of laser beams, we show the parameter range in which vortex-antivortex molecules or multiquantum vortices are formed as a consequence of the optically imposed symmetry. Being low-energy states, we discuss the conditions for spontaneous nucleation of these unique molecules and their direct experimental observation, and provoke the potential use of the phase print of an antivortex or a multiquantum vortex when realized in unconventional circumstances. | ||||
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| Publisher | Place of Publication | Lancaster, Pa | Editor | ||
| Language | Wos | 000261215600127 | Publication Date | 2008-11-06 | |
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| ISSN | 1050-2947;1094-1622; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 2.925 | Times cited | 12 | Open Access | |
| Notes | Approved | Most recent IF: 2.925; 2008 IF: 2.908 | |||
| Call Number | UA @ lucian @ c:irua:73184 | Serial | 3679 | ||
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| Author | Jacobs, W.; Reynaerts, C.; Andries, S.; van den Akker, S.; Moonen, N.; Lamoen, D. | ||||
| Title | Analyzing the dispersion of cargo vapors around a ship’s superstructure by means of wind tunnel experiments | Type | A1 Journal article | ||
| Year | 2016 | Publication | Journal of marine science and technology | Abbreviated Journal | J Mar Sci Tech-Japan |
| Volume | 21 | Issue | 21 | Pages | 758-766 |
| Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
| Abstract |
In a previous study, it was found that cargo tank operations like cleaning and venting, lead to higher cargo vapor concentrations around the ship’s superstructure. Can wind tunnel experiments confirm these findings? Is there an improvement when using higher outlets at high velocities compared to lower outlets with a low outlet velocity? Is there a relation between relative wind speed and measured concentration? These questions were investigated in the Peutz wind tunnel. By using a tracer gas for the wind tunnel experiments, concentration coefficients have been calculated for various settings. The study shows that using high-velocity outlets is an efficient way to keep concentrations as low as possible. The only exception is for relative wind directions from the bow. In this last case using a manhole as ventilation outlet leads to lower concentrations. With increasing wind speeds the building downwash effect resulted in higher concentration coefficients near the main deck. This study confirms our on-board measurements and suggests the lowering of the ventilation inlet of the accommodation, so that the high-velocity outlet can be used safely at all times. | ||||
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| Language | Wos | 000388260200015 | Publication Date | 2016-05-21 | |
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| Series Volume | Series Issue | Edition | |||
| ISSN | 0948-4280 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 0.838 | Times cited | 2 | Open Access | |
| Notes | The authors would like to thank Peutz bv. at Molenhoek, the Netherlands, for providing the wind tunnel facilities and their assistance during the various stages of this research. | Approved | Most recent IF: 0.838 | ||
| Call Number | EMAT @ emat @ c:irua:138728 | Serial | 4326 | ||
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