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“Synergistic effect of electric field and lipid oxidation on the permeability of cell membranes”. Yusupov M, Van der Paal J, Neyts EC, Bogaerts A, Biochimica et biophysica acta : G : general subjects 1861, 839 (2017). http://doi.org/10.1016/j.bbagen.2017.01.030
Abstract: Background: Strong electric fields are knownto affect cell membrane permeability,which can be applied for therapeutic purposes, e.g., in cancer therapy. A synergistic enhancement of this effect may be accomplished by the presence of reactive oxygen species (ROS), as generated in cold atmospheric plasmas. Little is known about the synergy between lipid oxidation by ROS and the electric field, nor on howthis affects the cell membrane permeability.
Method: We here conduct molecular dynamics simulations to elucidate the dynamics of the permeation process under the influence of combined lipid oxidation and electroporation. A phospholipid bilayer (PLB), consisting of di-oleoyl-phosphatidylcholine molecules covered with water layers, is used as a model system for the plasma membrane.
Results and conclusions:Weshow howoxidation of the lipids in the PLB leads to an increase of the permeability of the bilayer to ROS, although the permeation free energy barriers still remain relatively high. More importantly, oxidation of the lipids results in a drop of the electric field threshold needed for pore formation (i.e., electroporation) in the PLB. The created pores in the membrane facilitate the penetration of reactive plasma species deep into the cell interior, eventually causing oxidative damage.
General significance: This study is of particular interest for plasma medicine, as plasma generates both ROS and electric fields, but it is also of more general interest for applications where strong electric fields and ROS both come into play.
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 4.702
DOI: 10.1016/j.bbagen.2017.01.030
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“Rational design of an XNA ligase through docking of unbound nucleic acids to toroidal proteins”. Vanmeert M, Razzokov J, Mirza MU, Weeks SD, Schepers G, Bogaerts A, Rozenski J, Froeyen M, Herdewijn P, Pinheiro VB, Lescrinier E, Nucleic acids research 47, 7130 (2019). http://doi.org/10.1093/nar/gkz551
Abstract: Xenobiotic nucleic acids (XNA) are nucleic acid analogues not present in nature that can be used for the storage of genetic information. In vivo XNA applications could be developed into novel biocontainment strategies, but are currently limited by the challenge of developing XNA processing enzymes such as polymerases, ligases and nucleases. Here, we present a structure-guided modelling-based strategy for the rational design of those enzymes essential for the development of XNA molecular biology. Docking of protein domains to unbound double-stranded nucleic acids is used to generate a first approximation of the extensive interaction of nucleic acid processing enzymes with their substrate. Molecular dynamics is used to optimise that prediction allowing, for the first time, the accurate prediction of how proteins that form toroidal complexes with nucleic acids interact with their substrate. Using the Chlorella virus DNA ligase as a proof of principle, we recapitulate the ligase's substrate specificity and successfully predict how to convert it into an XNA-templated XNA ligase.
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 10.162
Times cited: 1
DOI: 10.1093/nar/gkz551
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“Plasma technology &ndash, a novel solution for CO2conversion?”.Snoeckx R, Bogaerts A, Chemical Society reviews 46, 5805 (2017). http://doi.org/10.1039/C6CS00066E
Abstract: CO2 conversion into value-added chemicals and fuels is considered as one of the great challenges of the 21st century. Due to the limitations of the traditional thermal approaches, several novel technologies are being developed. One promising approach in this field, which has received little attention to date, is plasma
technology. Its advantages include mild operating conditions, easy upscaling, and gas activation by energetic electrons instead of heat. This allows thermodynamically difficult reactions, such as CO2 splitting and the dry reformation of methane, to occur with reasonable energy cost. In this review, after exploring the traditional thermal approaches, we have provided a brief overview of the fierce competition between various novel approaches in a quest to find the most effective and efficient CO2 conversion technology. This is needed to critically assess whether plasma technology can be successful in an already crowded arena. The following questions need to be answered in this regard: are there key advantages to using plasma technology over other novel approaches, and if so, what is the flip side to the use of this technology? Can plasma technology be successful on its own, or can synergies be achieved by combining it with other technologies? To answer
these specific questions and to evaluate the potentials and limitations of plasma technology in general, this review presents the current state-of-the-art and a critical assessment of plasma-based CO2 conversion, as well as the future challenges for its practical implementation.
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 38.618
Times cited: 168
DOI: 10.1039/C6CS00066E
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“Plasma-catalytic ammonia decomposition using a packed-bed dielectric barrier discharge reactor”. Andersen JA, Christensen JM, Østberg M, Bogaerts A, Jensen AD, International Journal Of Hydrogen Energy 47, 32081 (2022). http://doi.org/10.1016/J.IJHYDENE.2022.07.102
Abstract: Plasma-catalytic ammonia decomposition as a method for producing hydrogen was studied in a packed-bed dielectric barrier discharge (DBD) reactor at ambient pressure and a fixed plasma power. The influence of packing the plasma zone with various dielectric materials, typically used as catalyst supports, was examined. At conditions (21 W, 75 Nml/min NH3) where an NH3 conversion of 5% was achieved with plasma alone, an improved decomposition was found when introducing dielectric materials with dielectric constants between 4 and 30. Of the tested materials, MgAl2O4 yielded the highest conversion (15.1%). The particle size (0.3-1.4 mm) of the MgAl2O4 packing was found to have a modest influence on the conversion, which dropped from 15.1% to 12.6% with increasing particle size. Impregnation of MgAl2O4 with different metals was found to decrease the NH3 conversion, with the Ni impregnation still showing an improved conversion (7%) compared to plasma-only. The plasma-assisted ammonia decomposition occurs in the gas phase due to micro-discharges, as evident from a linear correlation between the conversion and the frequency of micro-discharges for both plasma alone and with the various solid packing materials. The primary function of the solid is thus to facilitate the gas phase reaction by assisting the creation of micro-discharges. Lastly, insulation of the reactor to raise the temperature to 230 degrees C in the plasma zone was found to have a negative effect on the conversion, as a change from volume discharges to surface discharges occurred. The study shows that NH3 can be decomposed to provide hydrogen by exposure to a non-thermal plasma, but further developments are needed for it to become an energy efficient technology. (C)2022 The Author(s). Published by Elsevier Ltd on behalf of Hydrogen Energy Publications LLC.
Keywords: A1 Journal article; Engineering sciences. Technology; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 7.2
DOI: 10.1016/J.IJHYDENE.2022.07.102
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“Influence of N2 concentration in a CH4/N2 dielectric barrier discharge used for CH4 conversion into H2”. Snoeckx R, Setareh M, Aerts R, Simon P, Maghari A, Bogaerts A, International journal of hydrogen energy 38, 16098 (2013). http://doi.org/10.1016/j.ijhydene.2013.09.136
Abstract: We present a combined study of experimental and computational work for a dielectric barrier discharge (DBD) used for CH4 conversion into H2. More specifically, we investigated the influence of N2 as an impurity (150,000 ppm) and as additive gas (199%) on the CH4 conversion and H2 yield. For this purpose, a zero-dimensional chemical kinetics model is applied to study the plasma chemistry. The calculated conversions and yields for various gas mixing ratios are compared to the obtained experimental values, and good agreement is achieved. The study reveals the significance of the View the MathML source and View the MathML source metastable states for the CH4 conversion into H2, based on a kinetic analysis of the reaction chemistry.
Keywords: A1 Journal article; Engineering sciences. Technology; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 3.582
Times cited: 40
DOI: 10.1016/j.ijhydene.2013.09.136
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“Modelleren van plasmas gebruikt voor de afzetting van dunne lagen”. Herrebout D, Bogaerts A, Gijbels R, Chemie magazine , 34 (2004)
Keywords: A2 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
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“Mass spectrometric analysis of inorganic solids: GDMS and other methods”. Gijbels R, van Straaten M, Bogaerts A, Advances in mass spectrometry 13, 241 (1995)
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Times cited: 12
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“Laser-induced excitation mechanisms and phase transitions in spectrochemical analysis &ndash, Review of the fundamentals”. Vanraes P, Bogaerts A, Spectrochimica Acta Part B-Atomic Spectroscopy 179, 106091 (2021). http://doi.org/10.1016/j.sab.2021.106091
Abstract: Nowadays, lasers are commonly applied in spectrochemical analysis methods, for sampling, plasma formation or a combination of both. Despite the numerous investigations that have been performed on these applications, the underlying processes are still insufficiently understood. In order to fasten progress in the field and in honor of the lifework of professor Rick Russo, we here provide a brief overview of the fundamental mechanisms in lasermatter interaction as proposed in literature, and throw the spotlight on some aspects that have not received much attention yet. For an organized discussion, we choose laser ablation, laser desorption and the associated gaseous plasma formation as the central processes in this perspective article, based on a classification of the laserbased spectrochemical analysis techniques and the corresponding laser-matter interaction regimes. First, we put the looking glass over the excitation and thermalization mechanisms in the laser-irradiated condensed phase, for which we propose the so-called multi-plasma model. This novel model can be understood as an extension of the well-known two-temperature model, featuring multiple thermodynamic dimensions, each of which corresponds to a quasi-particle type. Next, the focus is placed on the mass transfer and ionization mechanisms, after which we shortly highlight the possible role of anisotropic and magnetic effects in the laser-excited material. We hope this perspective article motivates more fundamental research on laser-matter interaction, as a continuation of the lifework of Rick Russo.
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 3.241
DOI: 10.1016/j.sab.2021.106091
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“Behavior of the sputtered copper atoms, ions and excited species in a radio-frequency and direct current glow discharge”. Bogaerts A, Gijbels R, Spectrochimica acta: part B : atomic spectroscopy 55, 279 (2000). http://doi.org/10.1016/S0584-8547(00)00142-7
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 3.241
Times cited: 17
DOI: 10.1016/S0584-8547(00)00142-7
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“Calculation of rate constants for asymmetric charge transfer, and their effect on relative sensitivity factors in glow discharge mass spectrometry”. Bogaerts A, Temelkov KA, Vuchkov NK, Gijbels R, Spectrochimica acta: part B : atomic spectroscopy 62, 325 (2007). http://doi.org/10.1016/j.sab.2007.03.010
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 3.241
Times cited: 28
DOI: 10.1016/j.sab.2007.03.010
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“Collisional-radiative model for the sputtered copper atoms and ions in a direct current argon glow discharge”. Bogaerts A, Gijbels R, Carman RJ, Spectrochimica acta: part B : atomic spectroscopy 53, 1679 (1998). http://doi.org/10.1016/S0584-8547(98)00201-8
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 3.241
Times cited: 71
DOI: 10.1016/S0584-8547(98)00201-8
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“Colloquium Spectroscopicum Internationale 34, Antwerp (Belgium), 4-9 September 2005: preface”. Bogaerts A, Janssens K, van Grieken R, Spectrochimica acta: part B : atomic spectroscopy 61, 373 (2006). http://doi.org/10.1016/j.sab.2006.04.011
Keywords: Editorial; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 3.241
Times cited: 2
DOI: 10.1016/j.sab.2006.04.011
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“Comparison between a radio-frequency and direct current glow discharge in argon by a hybrid Monte Carlo-fluid model for electrons, argon ions and fast argon atoms”. Bogaerts A, Gijbels R, Goedheer W, Spectrochimica acta: part B : atomic spectroscopy 54, 1335 (1999). http://doi.org/10.1016/S0584-8547(99)00080-4
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 3.241
Times cited: 11
DOI: 10.1016/S0584-8547(99)00080-4
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“Comparison of calculated and measured optical emission intensities in a direct current argon-copper glow discharge”. Bogaerts A, Donko Z, Kutasi K, Bano G, Pinhao N, Pinheiro M, Spectrochimica acta: part B : atomic spectroscopy 55, 1465 (2000). http://doi.org/10.1016/S0584-8547(00)00253-6
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 3.241
Times cited: 33
DOI: 10.1016/S0584-8547(00)00253-6
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“Comparison of modeling calculations with experimental results for direct current glow discharge optical emission spectrometry”. Bogaerts A, Wilken L, Hoffmann V, Gijbels R, Wetzig K, Spectrochimica acta: part B : atomic spectroscopy 56, 551 (2001). http://doi.org/10.1016/S0584-8547(01)00220-8
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 3.241
Times cited: 16
DOI: 10.1016/S0584-8547(01)00220-8
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“Comparison of modeling calculations with experimental results for rf glow discharge optical emission spectrometry”. Bogaerts A, Wilken L, Hoffmann V, Gijbels R, Wetzig K, Spectrochimica acta: part B : atomic spectroscopy 57, 109 (2002). http://doi.org/10.1016/S0584-8547(01)00357-3
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 3.241
Times cited: 14
DOI: 10.1016/S0584-8547(01)00357-3
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“Comprehensive description of a Grimm-type glow discharge source used for optical emission spectrometry: a mathematical simulation”. Bogaerts A, Gijbels R, Spectrochimica acta: part B : atomic spectroscopy 53, 437 (1998). http://doi.org/10.1016/S0584-8547(97)00148-1
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 3.241
Times cited: 46
DOI: 10.1016/S0584-8547(97)00148-1
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“Computer simulations of crater profiles in glow discharge optical emission spectrometry: comparison with experiments and investigation of the underlying mechanisms”. Bogaerts A, Verscharen W, Steers E, Spectrochimica acta: part B : atomic spectroscopy 59, 1403 (2004). http://doi.org/10.1016/j.sab.2004.06.005
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 3.241
Times cited: 14
DOI: 10.1016/j.sab.2004.06.005
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“Computer simulations of sample chambers for laser ablation-inductively coupled plasma spectrometry”. Bleiner D, Bogaerts A, Spectrochimica acta: part B : atomic spectroscopy 62, 155 (2007). http://doi.org/10.1016/j.sab.2007.02.010
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 3.241
DOI: 10.1016/j.sab.2007.02.010
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“Description of the argon-excited levels in a radio-frequency and direct current glow discharge”. Bogaerts A, Gijbels R, Spectrochimica acta: part B : atomic spectroscopy 55, 263 (2000). http://doi.org/10.1016/S0584-8547(00)00143-9
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 3.241
Times cited: 24
DOI: 10.1016/S0584-8547(00)00143-9
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“Design analysis of a laser ablation cell for inductively coupled plasma mass spectrometry by numerical simulation”. Autrique D, Bogaerts A, Lindner H, Garcia CC, Niemax K, Spectrochimica acta: part B : atomic spectroscopy 63, 257 (2008). http://doi.org/10.1016/j.sab.2007.11.032
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 3.241
Times cited: 26
DOI: 10.1016/j.sab.2007.11.032
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“Double pulse laser ablation and laser induced breakdown spectroscopy: a modeling investigation”. Bogaerts A, Chen Z, Autrique D, Spectrochimica acta: part B : atomic spectroscopy 63, 746 (2008). http://doi.org/10.1016/j.sab.2008.04.005
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 3.241
Times cited: 56
DOI: 10.1016/j.sab.2008.04.005
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“Effect of laser parameters on laser ablation and laser-induced plasma formation: a numerical modeling investigation”. Bogaerts A, Chen Z, Spectrochimica acta: part B : atomic spectroscopy 60, 1280 (2005). http://doi.org/10.1016/j.sab.2005.06.009
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 3.241
Times cited: 165
DOI: 10.1016/j.sab.2005.06.009
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“Effects of oxygen addition to argon glow discharges: a hybrid Monte Carlo-fluid modeling investigation”. Bogaerts A, Spectrochimica acta: part B : atomic spectroscopy 64, 1266 (2009). http://doi.org/10.1016/j.sab.2009.10.003
Abstract: A hybrid model is developed for describing the effects of oxygen addition to argon glow discharges. The species taken into account in the model include Ar atoms in the ground state and the metastable level, O2 gas molecules in the ground state and two metastable levels, O atoms in the ground state and one metastable level, O3 molecules, Ar+, O+, O2+ and O− ions, as well as the electrons. The hybrid model consists of a Monte Carlo model for electrons and fluid models for the other plasma species. In total, 87 different reactions between the various plasma species are taken into account. Calculation results include the species densities and the importance of their production and loss processes, as well as the dissociation degree of oxygen. The effect of different O2 additions on these calculation results, as well as on the sputtering rates, is discussed.
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 3.241
Times cited: 39
DOI: 10.1016/j.sab.2009.10.003
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“Experimental determination of the energy distribution of ions bombarding the cathode surface in a glow discharge”. van Straaten M, Bogaerts A, Gijbels R, Spectrochimica acta: part B : atomic spectroscopy 50, 583 (1995). http://doi.org/10.1016/0584-8547(94)00158-R
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 3.176
Times cited: 22
DOI: 10.1016/0584-8547(94)00158-R
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“Fundamental aspects and applications of glow discharge spectrometric techniques”. Bogaerts A, Gijbels R, Spectrochimica acta: part B : atomic spectroscopy 53, 1 (1998). http://doi.org/10.1016/S0584-8547(97)00122-5
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 3.241
Times cited: 49
DOI: 10.1016/S0584-8547(97)00122-5
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“Fundamental studies on a planar-cathode direct current glow discharge: part 1: characterization via laser scattering techniques”. Gamez G, Bogaerts A, Andrade F, Hieftje GM, Spectrochimica acta: part B : atomic spectroscopy 59, 435 (2004). http://doi.org/10.1016/j.sab.2003.12.002
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 3.241
Times cited: 24
DOI: 10.1016/j.sab.2003.12.002
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“Fundamental studies on a planar-cathode direct current glow discharge: part 2: numerical modeling and comparison with laser scattering experiments”. Bogaerts A, Gijbels R, Gamez G, Hieftje GM, Spectrochimica acta: part B : atomic spectroscopy 59, 449 (2004). http://doi.org/10.1016/j.sab.2003.12.001
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 3.241
Times cited: 26
DOI: 10.1016/j.sab.2003.12.001
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“Gas discharge plasmas and their applications”. Bogaerts A, Neyts E, Gijbels R, van der Mullen J, Spectrochimica acta: part B : atomic spectroscopy 57, 609 (2002). http://doi.org/10.1016/S0584-8547(01)00406-2
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 3.241
Times cited: 462
DOI: 10.1016/S0584-8547(01)00406-2
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“Hybrid model for a cylindrical hollow cathode glow discharge and comparison with experiments”. Baguer N, Bogaerts A, Gijbels R, Spectrochimica acta: part B : atomic spectroscopy 57, 311 (2002). http://doi.org/10.1016/S0584-8547(01)00385-8
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 3.241
Times cited: 31
DOI: 10.1016/S0584-8547(01)00385-8
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