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| Author | Van der Paal, J.; Verheyen, C.; Neyts, E.C.; Bogaerts, A. | ||||
| Title | Hampering Effect of Cholesterol on the Permeation of Reactive Oxygen Species through Phospholipids Bilayer: Possible Explanation for Plasma Cancer Selectivity | Type | A1 Journal article | ||
| Year | 2017 | Publication | Scientific reports | Abbreviated Journal  |
Sci Rep-Uk |
| Volume | 7 | Issue | 7 | Pages | 39526 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) | ||||
| Abstract | In recent years, the ability of cold atmospheric pressure plasmas (CAPS) to selectively induce cell death in cancer cells has been widely established. This selectivity has been assigned to the reactive oxygen and nitrogen species (RONS) created in CAPs. To provide new insights in the search for an explanation for the observed selectivity, we calculate the transfer free energy of multiple ROS across membranes containing a varying amount of cholesterol. The cholesterol fraction is investigated as a selectivity parameter because membranes of cancer cells are known to contain lower fractions of cholesterol compared to healthy cells. We find that cholesterol has a significant effect on the permeation of reactive species across a membrane. Indeed, depending on the specific reactive species, an increasing cholesterol fraction can lead to (i) an increase of the transfer free energy barrier height and width, (ii) the formation of a local free energy minimum in the center of the membrane and (iii) the creation of extra free energy barriers due to the bulky sterol rings. In the context of plasma oncology, these observations suggest that the increased ingress of RONS in cancer cells can be explained by the decreased cholesterol fraction of their cell membrane. |
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| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000391306900001 | Publication Date | 2017-01-06 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2045-2322 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.259 | Times cited | 27 | Open Access | OpenAccess |
| Notes | The authors acknowledge financial support from the Fund for Scientific Research (FWO) Flanders, grant number 11U5416N. The calculations were performed in part using the Turing HPC infrastructure of the CalcUA core facility of the Universiteit Antwerpen, a division of the Flemish Supercomputer Center VSC, funded by the Hercules Foundation, the Flemish Government (department EWI) and the Universiteit Antwerpen. | Approved | Most recent IF: 4.259 | ||
| Call Number | PLASMANT @ plasmant @ c:irua:139512 | Serial | 4340 | ||
| Permanent link to this record | |||||
| Author | Yusupov, M.; Wende, K.; Kupsch, S.; Neyts, E.C.; Reuter, S.; Bogaerts, A. | ||||
| Title | Effect of head group and lipid tail oxidation in the cell membrane revealed through integrated simulations and experiments | Type | A1 Journal article | ||
| Year | 2017 | Publication | Scientific reports | Abbreviated Journal |
Sci Rep-Uk |
| Volume | 7 | Issue | 7 | Pages | 5761 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) | ||||
| Abstract | We report on multi-level atomistic simulations for the interaction of reactive oxygen species (ROS) with the head groups of the phospholipid bilayer, and the subsequent effect of head group and lipid tail oxidation on the structural and dynamic properties of the cell membrane. Our simulations are validated by experiments using a cold atmospheric plasma as external ROS source. We found that plasma treatment leads to a slight initial rise in membrane rigidity, followed by a strong and persistent increase in fluidity, indicating a drop in lipid order. The latter is also revealed by our simulations. This study is important for cancer treatment by therapies producing (extracellular) ROS, such as plasma treatment. These ROS will interact with the cell membrane, first oxidizing the head groups, followed by the lipid tails. A drop in lipid order might allow them to penetrate into the cell interior (e.g., through pores created due to oxidation of the lipid tails) and cause intracellular oxidative damage, eventually leading to cell death. This work in general elucidates the underlying mechanisms of ROS interaction with the cell membrane at the atomic level. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000405746500072 | Publication Date | 2017-07-12 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2045-2322 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.259 | Times cited | 27 | Open Access | OpenAccess |
| Notes | M.Y. gratefully acknowledges financial support from the Research Foundation – Flanders (FWO), grant number 1200216 N. The computational work was carried out using the Turing HPC infrastructure at the CalcUA core facility of the Universiteit Antwerpen (UA), a division of the Flemish Supercomputer Center VSC, funded by the Hercules Foundation, the Flemish Government (department EWI) and the UA. S.R. and S.K. acknowledge funding by the BMBF (FKZ: 03Z2DN12). S.R. acknowledges funding by the Ministry of Education, Science and Culture of the State of Mecklenburg-Vorpommern (AU 15001). The authors thank M. Hammer for the support and discussion in the biophysical studies and J. Van der Paal for the interesting discussions. | Approved | Most recent IF: 4.259 | ||
| Call Number | PLASMANT @ plasmant @ c:irua:144627 | Serial | 4630 | ||
| Permanent link to this record | |||||
| Author | Jelić, Z.L.; Milošević, M.V.; Silhanek, A.V. | ||||
| Title | Velocimetry of superconducting vortices based on stroboscopic resonances | Type | A1 Journal article | ||
| Year | 2016 | Publication | Scientific reports | Abbreviated Journal |
Sci Rep-Uk |
| Volume | 6 | Issue | Pages | 35687 | |
| Keywords | A1 Journal article; Engineering sciences. Technology; Condensed Matter Theory (CMT) | ||||
| Abstract | An experimental determination of the mean vortex velocity in superconductors mostly relies on the measurement of flux-flow resistance with magnetic field, temperature, or driving current. In the present work we introduce a method combining conventional transport measurements and a frequency-tuned flashing pinning potential to obtain reliable estimates of the vortex velocity. The proposed device is characterized using the time-dependent Ginzburg-Landau formalism, where the velocimetry method exploits the resonances in mean vortex dissipation when temporal commensuration occurs between the vortex crossings and the flashing potential. We discuss the sensitivity of the proposed technique on applied current, temperature and heat diffusion, as well as the vortex core deformations during fast motion. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Nature Publishing Group | Place of Publication | London | Editor | |
| Language | Wos | 000385919600001 | Publication Date | 2016-10-24 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2045-2322 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.259 | Times cited | 22 | Open Access | |
| Notes | ; This work was supported by the Research Foundation-Flanders (FWO) and EU COST action MP1201. The work of Z.L.J. and A.V.S. was partially supported by “Mandat d'Impulsion Scientifique” MIS F.4527.13 of the F.R.S.-FNRS. ; | Approved | Most recent IF: 4.259 | ||
| Call Number | UA @ lucian @ c:irua:144636 | Serial | 4701 | ||
| Permanent link to this record | |||||
| Author | Zarenia, M.; Neilson, D.; Peeters, F.M. | ||||
| Title | Inhomogeneous phases in coupled electron-hole bilayer graphene sheets : charge density waves and coupled wigner crystals | Type | A1 Journal article | ||
| Year | 2017 | Publication | Scientific reports | Abbreviated Journal |
Sci Rep-Uk |
| Volume | 7 | Issue | Pages | 11510 | |
| Keywords | A1 Journal article; Engineering sciences. Technology; Condensed Matter Theory (CMT) | ||||
| Abstract | Recently proposed accurate correlation energies are used to determine the phase diagram of strongly coupled electron-hole graphene bilayers. The control parameters of the phase diagram are the charge carrier density and the insulating barrier thickness separating the bilayers. In addition to the electron-hole superfluid phase we find two new inhomogeneous ground states, a one dimensional charge density wave phase and a coupled electron-hole Wigner crystal. The elementary crystal structure of bilayer graphene plays no role in generating these new quantum phases, which are completely determined by the electrons and holes interacting through the Coulomb interaction. The experimental parameters for the new phases lie within attainable ranges and therefore coupled electron-hole bilayer graphene presents itself as an experimental system where novel emergent many-body phases can be realized. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Nature Publishing Group | Place of Publication | London | Editor | |
| Language | Wos | 000410739000008 | Publication Date | 2017-09-11 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2045-2322 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.259 | Times cited | 13 | Open Access | |
| Notes | ; We thank Alex Hamilton, Bart Partoens, and Andrea Perali for useful discussions. This work was partially supported by the Flemish Science Foundation (FWO-Vl) and the Methusalem program of the Flemish government. D.N. acknowledges support by the University of Camerino FAR project CESEMN. ; | Approved | Most recent IF: 4.259 | ||
| Call Number | UA @ lucian @ c:irua:145620 | Serial | 4742 | ||
| Permanent link to this record | |||||
| Author | Van Boxem, W.; Van der Paal, J.; Gorbanev, Y.; Vanuytsel, S.; Smits, E.; Dewilde, S.; Bogaerts, A. | ||||
| Title | Anti-cancer capacity of plasma-treated PBS: effect of chemical composition on cancer cell cytotoxicity | Type | A1 Journal article | ||
| Year | 2017 | Publication | Scientific reports | Abbreviated Journal |
Sci Rep-Uk |
| Volume | 7 | Issue | 1 | Pages | 16478 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) | ||||
| Abstract | We evaluate the anti-cancer capacity of plasma-treated PBS (pPBS), by measuring the concentrations of NO2 − and H2O2 in pPBS, treated with a plasma jet, for different values of gas flow rate, gap and plasma treatment time, as well as the effect of pPBS on cancer cell cytotoxicity, for three different glioblastoma cancer cell lines, at exactly the same plasma treatment conditions. Our experiments reveal that pPBS is cytotoxic for all conditions investigated. A small variation in gap between plasma jet and liquid surface (10 mm vs 15 mm) significantly affects the chemical composition of pPBS and its anti-cancer capacity, attributed to the occurrence of discharges onto the liquid. By correlating the effect of gap, gas flow rate and plasma treatment time on the chemical composition and anti-cancer capacity of pPBS, we may conclude that H2O2 is a more important species for the anti-cancer capacity of pPBS than NO2 −. We also used a 0D model, developed for plasma-liquid interactions, to elucidate the most important mechanisms for the generation of H2O2 and NO2 −. Finally, we found that pPBS might be more suitable for practical applications in a clinical setting than (commonly used) plasma-activated media (PAM), because of its higher stability. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000416398100028 | Publication Date | 2017-11-22 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2045-2322 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.259 | Times cited | 40 | Open Access | OpenAccess |
| Notes | We acknowledge financial support from the Fund for Scientific Research (FWO) Flanders (Grant No. 11U5416N), the Research Council of the University of Antwerp and the European Marie Skłodowska-Curie Individual Fellowship “LTPAM” within Horizon2020 (Grant No. 743151). Finally, we would like to thank P. Attri and A. Privat Maldonado for the valuable discussions. | Approved | Most recent IF: 4.259 | ||
| Call Number | PLASMANT @ plasmant @c:irua:147192 | Serial | 4766 | ||
| Permanent link to this record | |||||
| Author | Klinkhammer, C.; Verlackt, C.; Smilowicz, D.; Kogelheide, F.; Bogaerts, A.; Metzler-Nolte, N.; Stapelmann, K.; Havenith, M.; Lackmann, J.-W. | ||||
| Title | Elucidation of plasma-induced chemical modifications on glutathione and glutathione disulphide | Type | A1 Journal article | ||
| Year | 2017 | Publication | Scientific reports | Abbreviated Journal |
Sci Rep-Uk |
| Volume | 7 | Issue | Pages | 13828 | |
| Keywords | A1 Journal article; Engineering sciences. Technology; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) | ||||
| Abstract | Cold atmospheric pressure plasmas are gaining increased interest in the medical sector and clinical trials to treat skin diseases are underway. Plasmas are capable of producing several reactive oxygen and nitrogen species (RONS). However, there are open questions how plasma-generated RONS interact on a molecular level in a biological environment, e.g. cells or cell components. The redox pair glutathione (GSH) and glutathione disulphide (GSSG) forms the most important redox buffer in organisms responsible for detoxification of intracellular reactive species. We apply Raman spectroscopy, mass spectrometry, and molecular dynamics simulations to identify the time-dependent chemical modifications on GSH and GSSG that are caused by dielectric barrier discharge under ambient conditions. We find GSSG, S-oxidised glutathione species, and S-nitrosoglutathione as oxidation products with the latter two being the final products, while glutathione sulphenic acid, glutathione sulphinic acid, and GSSG are rather reaction intermediates. Experiments using stabilized pH conditions revealed the same main oxidation products as were found in unbuffered solution, indicating that the dominant oxidative or nitrosative reactions are not influenced by acidic pH. For more complex systems these results indicate that too long treatment times can cause difficult-to-handle modifications to the cellular redox buffer which can impair proper cellular function. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Nature Publishing Group | Place of Publication | London | Editor | |
| Language | Wos | 000413401300003 | Publication Date | 2017-10-17 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2045-2322 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.259 | Times cited | 17 | Open Access | OpenAccess |
| Notes | Approved | Most recent IF: 4.259 | |||
| Call Number | UA @ lucian @ c:irua:146666 | Serial | 4783 | ||
| Permanent link to this record | |||||
| Author | Zografos, O.; Manfrini, M.; Vaysset, A.; Sorée, B.; Ciubotaru, F.; Adelmann, C.; Lauwereins, R.; Raghavan, P.; Radu, I.P. | ||||
| Title | Exchange-driven magnetic logic | Type | A1 Journal article | ||
| Year | 2017 | Publication | Scientific reports | Abbreviated Journal |
Sci Rep-Uk |
| Volume | 7 | Issue | Pages | 12154 | |
| Keywords | A1 Journal article; Engineering sciences. Technology; Condensed Matter Theory (CMT) | ||||
| Abstract | Direct exchange interaction allows spins to be magnetically ordered. Additionally, it can be an efficient manipulation pathway for low-powered spintronic logic devices. We present a novel logic scheme driven by exchange between two distinct regions in a composite magnetic layer containing a bistable canted magnetization configuration. By applying a magnetic field pulse to the input region, the magnetization state is propagated to the output via spin-to-spin interaction in which the output state is given by the magnetization orientation of the output region. The dependence of this scheme with input field conditions is extensively studied through a wide range of micromagnetic simulations. These results allow different logic operating modes to be extracted from the simulation results, and majority logic is successfully demonstrated. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Nature Publishing Group | Place of Publication | London | Editor | |
| Language | Wos | 000411434900020 | Publication Date | 2017-09-18 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2045-2322 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.259 | Times cited | 7 | Open Access | |
| Notes | ; ; | Approved | Most recent IF: 4.259 | ||
| Call Number | UA @ lucian @ c:irua:146742 | Serial | 4784 | ||
| Permanent link to this record | |||||
| Author | Berdiyorov, G.R.; Milošević, M.V.; Hernandez-Nieves, A.D.; Peeters, F.M.; Dominguez, D. | ||||
| Title | Microfluidic manipulation of magnetic flux domains in type-I superconductors : droplet formation, fusion and fission | Type | A1 Journal article | ||
| Year | 2017 | Publication | Scientific reports | Abbreviated Journal |
Sci Rep-Uk |
| Volume | 7 | Issue | Pages | 12129 | |
| Keywords | A1 Journal article; Engineering sciences. Technology; Condensed Matter Theory (CMT) | ||||
| Abstract | The magnetic flux domains in the intermediate state of type-I superconductors are known to resemble fluid droplets, and their dynamics in applied electric current is often cartooned as a “dripping faucet”. Here we show, using the time-depended Ginzburg-Landau simulations, that microfluidic principles hold also for the determination of the size of the magnetic flux-droplet as a function of the applied current, as well as for the merger or splitting of those droplets in the presence of the nanoengineered obstacles for droplet motion. Differently from fluids, the flux-droplets in superconductors are quantized and dissipative objects, and their pinning/depinning, nucleation, and splitting occur in a discretized form, all traceable in the voltage measured across the sample. At larger applied currents, we demonstrate how obstacles can cause branching of laminar flux streams or their transformation into mobile droplets, as readily observed in experiments. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Nature Publishing Group | Place of Publication | London | Editor | |
| Language | Wos | 000411416700032 | Publication Date | 2017-09-15 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2045-2322 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.259 | Times cited | 1 | Open Access | |
| Notes | ; This work was supported by the Research Foundation Flanders (FWO) and the MINCYT-FWO FW/14/04 bilateral project. A.D.H. and D.D. acknowledge support from CONICET (Grant No. PIP111220150100218), CNEA and ANPCyT (Grant No. PICT2014-1382). ; | Approved | Most recent IF: 4.259 | ||
| Call Number | UA @ lucian @ c:irua:146743 | Serial | 4789 | ||
| Permanent link to this record | |||||
| Author | de Aquino, B.R.H.; Neek-Amal, M.; Milošević, M.V. | ||||
| Title | Unconventional two-dimensional vibrations of a decorated carbon nanotube under electric field : linking actuation to advanced sensing ability | Type | A1 Journal article | ||
| Year | 2017 | Publication | Scientific reports | Abbreviated Journal |
Sci Rep-Uk |
| Volume | 7 | Issue | Pages | 13481 | |
| Keywords | A1 Journal article; Engineering sciences. Technology; Condensed Matter Theory (CMT) | ||||
| Abstract | We show that a carbon nanotube decorated with different types of charged metallic nanoparticles exhibits unusual two-dimensional vibrations when actuated by applied electric field. Such vibrations and diverse possible trajectories are not only fundamentally important but also have minimum two characteristic frequencies that can be directly linked back to the properties of the constituents in the considered nanoresonator. Namely, those frequencies and the maximal deflection during vibrations are very distinctively dependent on the geometry of the nanotube, the shape, element, mass and charge of the nanoparticle, and are vastly tunable by the applied electric field, revealing the unique sensing ability of devices made of molecular filaments and metallic nanoparticles. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Nature Publishing Group | Place of Publication | London | Editor | |
| Language | Wos | 000413188600005 | Publication Date | 2017-10-12 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2045-2322 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.259 | Times cited | 1 | Open Access | |
| Notes | ; This work was supported by the Research Foundation – Flanders (FWO) and Shahid Rajaee Teacher Training University. ; | Approved | Most recent IF: 4.259 | ||
| Call Number | UA @ lucian @ c:irua:146672 | Serial | 4796 | ||
| Permanent link to this record | |||||
| Author | Bekaert, J.; Bignardi, L.; Aperis, A.; van Abswoude, P.; Mattevi, C.; Gorovikov, S.; Petaccia, L.; Goldoni, A.; Partoens, B.; Oppeneer, P.M.; Peeters, F.M.; Milošević, M.V.; Rudolf, P.; Cepek, C. | ||||
| Title | Free surfaces recast superconductivity in few-monolayer MgB2 : combined first-principles and ARPES demonstration | Type | A1 Journal article | ||
| Year | 2017 | Publication | Scientific reports | Abbreviated Journal |
Sci Rep-Uk |
| Volume | 7 | Issue | Pages | 14458 | |
| Keywords | A1 Journal article; Engineering sciences. Technology; Condensed Matter Theory (CMT) | ||||
| Abstract | <script type='text/javascript'>document.write(unpmarked('Two-dimensional materials are known to harbour properties very different from those of their bulk counterparts. Recent years have seen the rise of atomically thin superconductors, with a caveat that superconductivity is strongly depleted unless enhanced by specific substrates, intercalants or adatoms. Surprisingly, the role in superconductivity of electronic states originating from simple free surfaces of two-dimensional materials has remained elusive to date. Here, based on first-principles calculations, anisotropic Eliashberg theory, and angle-resolved photoemission spectroscopy (ARPES), we show that surface states in few-monolayer MgB2 make a major contribution to the superconducting gap spectrum and density of states, clearly distinct from the widely known, bulk-like sigma-and pi-gaps. As a proof of principle, we predict and measure the gap opening on the magnesium-based surface band up to a critical temperature as high as similar to 30 K for merely six monolayers thick MgB2. These findings establish free surfaces as an unavoidable ingredient in understanding and further tailoring of superconductivity in atomically thin materials.')); | ||||
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| Corporate Author | Thesis | ||||
| Publisher | Nature Publishing Group | Place of Publication | London | Editor | |
| Language | Wos | 000414231000059 | Publication Date | 2017-10-25 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2045-2322 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.259 | Times cited | 27 | Open Access | |
| Notes | ; This work was supported by TOPBOF-UAntwerp, Research Foundation Flanders (FWO), the Foundation for Fundamental Research on Matter (FOM)-part of the Netherlands Organisation for Scientific Research, the Swedish Research Council (VR) and the Rontgen-Angstrom Cluster. P.v.A. acknowledges an Ubbo Emmius fellowship for his PhD studies. The computational resources and services used for the first-principles calculations in this work were provided by the VSC (Flemish Supercomputer Center), funded by the Research Foundation Flanders (FWO) and the Flemish Government – department EWI. Eliashberg theory calculations were supported through the Swedish National Infrastructure for Computing (SNIC). We thank D. Lonza for technical assistance in the experimental part. ; | Approved | Most recent IF: 4.259 | ||
| Call Number | UA @ lucian @ c:irua:147426 | Serial | 4875 | ||
| Permanent link to this record | |||||
| Author | Dutta, S.; Zografos, O.; Gurunarayanan, S.; Radu, I.; Sorée, B.; Catthoor, F.; Naeemi, A. | ||||
| Title | Proposal for nanoscale cascaded plasmonic majority gates for non-Boolean computation | Type | A1 Journal article | ||
| Year | 2017 | Publication | Scientific reports | Abbreviated Journal |
Sci Rep-Uk |
| Volume | 7 | Issue | Pages | 17866 | |
| Keywords | A1 Journal article; Engineering sciences. Technology; Condensed Matter Theory (CMT) | ||||
| Abstract | <script type='text/javascript'>document.write(unpmarked('Surface-plasmon-polariton waves propagating at the interface between a metal and a dielectric, hold the key to future high-bandwidth, dense on-chip integrated logic circuits overcoming the diffraction limitation of photonics. While recent advances in plasmonic logic have witnessed the demonstration of basic and universal logic gates, these CMOS oriented digital logic gates cannot fully utilize the expressive power of this novel technology. Here, we aim at unraveling the true potential of plasmonics by exploiting an enhanced native functionality – the majority voter. Contrary to the state-of-the-art plasmonic logic devices, we use the phase of the wave instead of the intensity as the state or computational variable. We propose and demonstrate, via numerical simulations, a comprehensive scheme for building a nanoscale cascadable plasmonic majority logic gate along with a novel referencing scheme that can directly translate the information encoded in the amplitude and phase of the wave into electric field intensity at the output. Our MIM-based 3-input majority gate displays a highly improved overall area of only 0.636 mu m(2) for a single-stage compared with previous works on plasmonic logic. The proposed device demonstrates non-Boolean computational capability and can find direct utility in highly parallel real-time signal processing applications like pattern recognition.')); | ||||
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| Corporate Author | Thesis | ||||
| Publisher | Nature Publishing Group | Place of Publication | London | Editor | |
| Language | Wos | 000418359600116 | Publication Date | 2017-12-13 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2045-2322 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.259 | Times cited | 2 | Open Access | |
| Notes | ; ; | Approved | Most recent IF: 4.259 | ||
| Call Number | UA @ lucian @ c:irua:148514 | Serial | 4891 | ||
| Permanent link to this record | |||||
| Author | Andrikopoulos, D.; Sorée, B. | ||||
| Title | Skyrmion electrical detection with the use of three-dimensional Topological Insulators/Ferromagnetic bilayers | Type | A1 Journal article | ||
| Year | 2017 | Publication | Scientific reports | Abbreviated Journal |
Sci Rep-Uk |
| Volume | 7 | Issue | Pages | 17871 | |
| Keywords | A1 Journal article; Engineering sciences. Technology; Condensed Matter Theory (CMT) | ||||
| Abstract | <script type='text/javascript'>document.write(unpmarked('The effect of the magnetic skyrmion texture on the electronic transport properties of the Tl surface state coupled to a thin-film FM is numerically investigated. It is shown that both Bloch (vortex) and Neel (hedgehog) skyrmion textures induce additional scattering on top of a homogeneous background FM texture which can modify the conductance of the system. The change in conductance depends on several factors including the skyrmion size, the dimensions of the FM and the exchange interaction strength. For the Neel skyrmion, the result of the interaction strongly depends on the skyrmion number N-sk and the skyrmion helicity h. For both skyrmion types, significant change of the resistance can be achieved, which is in the order of k Omega.')); | ||||
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| Corporate Author | Thesis | ||||
| Publisher | Nature Publishing Group | Place of Publication | London | Editor | |
| Language | Wos | 000418359600121 | Publication Date | 2017-12-13 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2045-2322 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.259 | Times cited | 3 | Open Access | |
| Notes | ; ; | Approved | Most recent IF: 4.259 | ||
| Call Number | UA @ lucian @ c:irua:148513 | Serial | 4896 | ||
| Permanent link to this record | |||||
| Author | Berdiyorov, G.R.; Milošević, M.V.; Kusmartsev, F.; Peeters, F.M.; Savel'ev, S. | ||||
| Title | Josephson vortex loops in nanostructured Josephson junctions | Type | A1 Journal article | ||
| Year | 2018 | Publication | Scientific reports | Abbreviated Journal |
Sci Rep-Uk |
| Volume | 8 | Issue | 8 | Pages | 2733 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Condensed Matter Theory (CMT) | ||||
| Abstract | Linked and knotted vortex loops have recently received a revival of interest. Such three-dimensional topological entities have been observed in both classical-and super-fluids, as well as in optical systems. In superconductors, they remained obscure due to their instability against collapse – unless supported by inhomogeneous magnetic field. Here we reveal a new kind of vortex matter in superconductors -the Josephson vortex loops – formed and stabilized in planar junctions or layered superconductors as a result of nontrivial cutting and recombination of Josephson vortices around the barriers for their motion. Engineering latter barriers opens broad perspectives on loop manipulation and control of other possible knotted/linked/entangled vortex topologies in nanostructured superconductors. In the context of Josephson devices proposed to date, the high-frequency excitations of the Josephson loops can be utilized in future design of powerful emitters, tunable filters and waveguides of high-frequency electromagnetic radiation, thereby pushing forward the much needed Terahertz technology. | ||||
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| Corporate Author | Thesis | ||||
| Publisher | Nature Publishing Group | Place of Publication | London | Editor | |
| Language | Wos | 000424630400046 | Publication Date | 2018-02-05 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2045-2322 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.259 | Times cited | 10 | Open Access | |
| Notes | ; This work was supported by EU Marie-Curie program (project No: 253057), Special Research Funds of the University of Antwerp (BOF-UA), and by the Research Foundation – Flanders (FWO). ; | Approved | Most recent IF: 4.259 | ||
| Call Number | UA @ lucian @ c:irua:149262UA @ admin @ c:irua:149262 | Serial | 4940 | ||
| Permanent link to this record | |||||
| Author | Lackmann, J.-W.; Wende, K.; Verlackt, C.; Golda, J.; Volzke, J.; Kogelheide, F.; Held, J.; Bekeschus, S.; Bogaerts, A.; Schulz-von der Gathen, V.; Stapelmann, K. | ||||
| Title | Chemical fingerprints of cold physical plasmas – an experimental and computational study using cysteine as tracer compound | Type | A1 Journal article | ||
| Year | 2018 | Publication | Scientific reports | Abbreviated Journal |
Sci Rep-Uk |
| Volume | 8 | Issue | 1 | Pages | 7736 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) | ||||
| Abstract | Reactive oxygen and nitrogen species released by cold physical plasma are being proposed as effectors in various clinical conditions connected to inflammatory processes. As these plasmas can be tailored in a wide range, models to compare and control their biochemical footprint are desired to infer on the molecular mechanisms underlying the observed effects and to enable the discrimination between different plasma sources. Here, an improved model to trace short-lived reactive species is presented. Using FTIR, high-resolution mass spectrometry, and molecular dynamics computational simulation, covalent modifications of cysteine treated with different plasmas were deciphered and the respective product pattern used to generate a fingerprint of each plasma source. Such, our experimental model allows a fast and reliable grading of the chemical potential of plasmas used for medical purposes. Major reaction products were identified to be cysteine sulfonic acid, cystine, and cysteine fragments. Less abundant products, such as oxidized cystine derivatives or S-nitrosylated cysteines, were unique to different plasma sources or operating conditions. The data collected point at hydroxyl radicals, atomic O, and singlet oxygen as major contributing species that enable an impact on cellular thiol groups when applying cold plasma in vitro or in vivo. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000432275800035 | Publication Date | 2018-05-10 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2045-2322 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.259 | Times cited | 19 | Open Access | OpenAccess |
| Notes | This work was supported by the German Research Foundation (DFG, grant PAK816 to V.SvdG.), the Federal German Ministry of Education and Research (grant number 03Z22DN12 to K.W. and 03Z22DN11 to S.B.), and the FWO-Flanders (grant number G012413N to A.B.). K.W. likes to thank T. von Woedtke and K.-D. Weltmann for constant support. The authors thank K. Kartaschew for fruitful discussion and G. Bruno for support during mock studies. | Approved | Most recent IF: 4.259 | ||
| Call Number | PLASMANT @ plasmant @c:irua:151241 | Serial | 4957 | ||
| Permanent link to this record | |||||
| Author | Pinto, N.; Rezvani, S.J.; Perali, A.; Flammia, L.; Milošević, M.V.; Fretto, M.; Cassiago, C.; De Leo, N. | ||||
| Title | Dimensional crossover and incipient quantum size effects in superconducting niobium nanofilms | Type | A1 Journal article | ||
| Year | 2018 | Publication | Scientific reports | Abbreviated Journal |
Sci Rep-Uk |
| Volume | 8 | Issue | 8 | Pages | 4710 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Condensed Matter Theory (CMT) | ||||
| Abstract | Superconducting and normal state properties of Niobium nanofilms have been systematically investigated as a function of film thickness, on different substrates. The width of the superconductingto- normal transition for all films is remarkably narrow, confirming their high quality. The superconducting critical current density exhibits a pronounced maximum for thickness around 25 nm, marking the 3D-to-2D crossover. The magnetic penetration depth shows a sizeable enhancement for the thinnest films. Additional amplification effects of the superconducting properties have been obtained with sapphire substrates or squeezing the lateral size of the nanofilms. For thickness close to 20 nm we measured a doubled perpendicular critical magnetic field compared to its large thickness value, indicating shortening of the correlation length and the formation of small Cooper pairs. Our data analysis indicates an exciting interplay between quantum-size and proximity effects together with strong-coupling effects and the importance of disorder in the thinnest films, placing these nanofilms close to the BCS-BEC crossover regime. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Nature Publishing Group | Place of Publication | London | Editor | |
| Language | Wos | 000427588300011 | Publication Date | 2018-03-12 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2045-2322 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.259 | Times cited | 37 | Open Access | |
| Notes | ; We thank Antonio Bianconi, Mauro Doria and Vincenzo Lacquaniti for useful discussions. We acknowledge the collaboration with Federica Celegato for AFM analysis and Sara Quercetti for the electrical properties characterization. A. P. and N. P. acknowledge financial support from University of Camerino FAR project CESEMN. We also acknowledge the collaboration within the MultiSuper International Network (http://www.multisuper.org) for exchange of ideas and suggestions. ; | Approved | Most recent IF: 4.259 | ||
| Call Number | UA @ lucian @ c:irua:150843UA @ admin @ c:irua:150843 | Serial | 4965 | ||
| Permanent link to this record | |||||
| Author | Yadav, D.K.; Kumar, S.; Saloni; Misra, S.; Yadav, L.; Teli, M.; Sharma, P.; Chaudhary, S.; Kumar, N.; Choi, E.H.; Kim, H.S.; Kim, M.-hyun | ||||
| Title | Molecular Insights into the Interaction of RONS and Thieno[3,2-c]pyran Analogs with SIRT6/COX-2: A Molecular Dynamics Study | Type | A1 Journal article | ||
| Year | 2018 | Publication | Scientific reports | Abbreviated Journal |
Sci Rep-Uk |
| Volume | 8 | Issue | 8 | Pages | 4777 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) | ||||
| Abstract | SIRT6 and COX-2 are oncogenes target that promote the expression of proinflammatory and pro-survival proteins through a signaling pathway, which leads to increased survival and proliferation of tumor cells. However, COX-2 also suppresses skin tumorigenesis and their relationship with SIRT6, making it an interesting target for the discovery of drugs with anti-inflammatory and anti-cancer properties. Herein, we studied the interaction of thieno[3,2-c] pyran analogs and RONS species with SIRT6 and COX-2 through the use of molecular docking and molecular dynamic simulations. Molecular docking studies revealed the importance of hydrophobic and hydrophilic amino acid residues for the stability. The molecular dynamics study examined conformational changes in the enzymes caused by the binding of the substrates and how those changes affected the stability of the protein-drug complex. The average RMSD values of the backbone atoms in compounds 6 and 10 were calculated from 1000 ps to 10000 ps and were found to be 0.13 nm for both compounds. Similarly, the radius of gyration values for compounds 6 and 10 were found to be 1.87 +/- 0.03 nm and 1.86 +/- 0.02 nm, respectively. The work presented here, will be of great help in lead identification and optimization for early drug discovery. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Nature Publishing Group | Place of Publication | London | Editor | |
| Language | Wos | 000427685200002 | Publication Date | 2018-03-13 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2045-2322 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.259 | Times cited | 10 | Open Access | OpenAccess |
| Notes | Approved | Most recent IF: 4.259 | |||
| Call Number | UA @ lucian @ c:irua:150841 | Serial | 4974 | ||
| Permanent link to this record | |||||
| Author | Vanraes, P.; Nikiforov, A.; Bogaerts, A.; Leys, C. | ||||
| Title | Study of an AC dielectric barrier single micro-discharge filament over a water film | Type | A1 Journal article | ||
| Year | 2018 | Publication | Scientific reports | Abbreviated Journal |
Sci Rep-Uk |
| Volume | 8 | Issue | 1 | Pages | 10919 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) | ||||
| Abstract | In the last decades, AC powered atmospheric dielectric barrier discharges (DBDs) in air with a liquid electrode have been proposed as a promising plasma technology with versatile applicability in medicine agriculture and water treatment. The fundamental features of the micro-discharge filaments that make up this type of plasma have, however, not been studied yet in sufficient detail. In order to address this need, we investigated a single DBD micro-discharge filament over a water film in a sphere-to-sphere electrode configuration, by means of ICCD imaging and optical emission spectroscopy. When the water film temporarily acts as the cathode, the plasma duration is remarkably long and shows a clear similarity with a resistive barrier discharge, which we attribute to the resistive nature of the water film and the formation of a cathode fall. As another striking difference to DBD with solid electrodes, a constant glow-like plasma is observed at the water surface during the entire duration of the applied voltage cycle, indicating continuous plasma treatment of the liquid. We propose several elementary mechanisms that might underlie the observed unique behavior, based on the specific features of a water electrode. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000439101600018 | Publication Date | 2018-07-13 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2045-2322 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.259 | Times cited | 3 | Open Access | OpenAccess |
| Notes | P. Vanraes acknowledges funding by a University of Antwerp BOF grant. | Approved | Most recent IF: 4.259 | ||
| Call Number | PLASMANT @ plasmant @c:irua:152822c:irua:152411 | Serial | 4999 | ||
| Permanent link to this record | |||||
| Author | Attri, P.; Han, J.; Choi, S.; Choi, E.H.; Bogaerts, A.; Lee, W. | ||||
| Title | CAP modifies the structure of a model protein from thermophilic bacteria: mechanisms of CAP-mediated inactivation | Type | A1 Journal article | ||
| Year | 2018 | Publication | Scientific reports | Abbreviated Journal |
Sci Rep-Uk |
| Volume | 8 | Issue | 1 | Pages | 10218 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) | ||||
| Abstract | Cold atmospheric plasma (CAP) has great potential for sterilization in the food industry, by deactivation of thermophilic bacteria, but the underlying mechanisms are largely unknown. Therefore, we investigate here whether CAP is able to denature/modify protein from thermophilic bacteria. We focus on MTH1880 (MTH) from Methanobacterium thermoautotrophicum as model protein, which we treated with dielectric barrier discharge (DBD) plasma operating in air for 10, 15 and 20 mins. We analysed the structural changes of MTH using circular dichroism, fluorescence and NMR spectroscopy, as well as the thermal and chemical denaturation, upon CAP treatment. Additionally, we performed molecular dynamics (MD) simulations to determine the stability, flexibility and solvent accessible surface area (SASA) of both the native and oxidised protein. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000437414500004 | Publication Date | 2018-06-29 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2045-2322 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.259 | Times cited | 6 | Open Access | OpenAccess |
| Notes | We gratefully acknowledge the European Marie Skłodowska-Curie Individual Fellowship “Anticancer-PAM” within Horizon2020 (grant number 743546). This work was also supported by NRF-2017R1A2B2008483 to W.L. through the National Research Foundation of Korea (NRF) and BK+ program (J.H.). E.H.C. acknowledges the NRF (NRF-2016K1A4A3914113 and No. 20100027963). The computational work was carried out using the Turing HPC infrastructure at the CalcUA core facility of the Universiteit Antwerpen (UA), a division of the Flemish Supercomputer Center VSC, funded by the Hercules Foundation, the Flemish Government (department EWI) and the UA. | Approved | Most recent IF: 4.259 | ||
| Call Number | PLASMANT @ plasmant @c:irua:152817c:irua:152431 | Serial | 5002 | ||
| Permanent link to this record | |||||
| Author | Shaw, P.; Kumar, N.; Kwak, H.S.; Park, J.H.; Uhm, H.S.; Bogaerts, A.; Choi, E.H.; Attri, P. | ||||
| Title | Bacterial inactivation by plasma treated water enhanced by reactive nitrogen species | Type | A1 Journal article | ||
| Year | 2018 | Publication | Scientific reports | Abbreviated Journal |
Sci Rep-Uk |
| Volume | 8 | Issue | 1 | Pages | 11268 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) | ||||
| Abstract | There is a growing body of literature that recognizes the importance of plasma treated water (PTW)for inactivation of microorganism. However, very little attention has been paid to the role of reactive nitrogen species (RNS) in deactivation of bacteria. The aim of this study is to explore the role of RNS in bacterial killing, and to develop a plasma system with increased sterilization efficiency. To increase the concentration of reactive oxygen and nitrogen species (RONS) in solution, we have used vapor systems (DI water/HNO3 at different wt%) combined with plasma using N2 as working gas. The results show that the addition of the vapor system yields higher RONS contents. Furthermore, PTW produced by N2 + 0.5 wt% HNO3 vapor comprises a large amount of both RNS and ROS, while PTW created by N2 + H2O vapor consists of a large amount of ROS, but much less RNS. Interestingly, we observed more deactivation of E. Coli with PTW created by N2 + 0.5 wt% HNO3 vapor plasma as compared to PTW generated by the other plasma systems. This work provides new insight into the role of RNS along with ROS for deactivation of bacteria. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000439805700029 | Publication Date | 2018-07-20 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2045-2322 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.259 | Times cited | 17 | Open Access | OpenAccess |
| Notes | We gratefully acknowledge the Leading Foreign Research Institute Recruitment program (Grant # NRF- 2016K1A4A3914113) throughout the Basic Science Research Program of the National Research Foundation (NRF) of Korea and in part by Kwangwoon University 2018. JHP thanks to NRF Grant No. NRF- 2017R1D1A1B03033495. We also acknowledge financial support from the Research Foundation – Flanders (FWO) (Grant Number 12J5617N) and from the European Marie Skłodowska-Curie Individual Fellowship “Anticancer-PAM” within Horizon 2020 (Grant Number 743546). | Approved | Most recent IF: 4.259 | ||
| Call Number | PLASMANT @ plasmant @c:irua:152821 | Serial | 5003 | ||
| Permanent link to this record | |||||
| Author | Samaee, V.; Gatti, R.; Devincre, B.; Pardoen, T.; Schryvers, D.; Idrissi, H. | ||||
| Title | Dislocation driven nanosample plasticity: new insights from quantitative in-situ TEM tensile testing | Type | A1 Journal Article | ||
| Year | 2018 | Publication | Scientific Reports | Abbreviated Journal |
Sci Rep-Uk |
| Volume | 8 | Issue | 1 | Pages | 12012 |
| Keywords | A1 Journal Article; Electron Microscopy for Materials Science (EMAT) ; | ||||
| Abstract | Intrinsic dislocation mechanisms in the vicinity of free surfaces of an almost FIB damage-free single crystal Ni sample have been quantitatively investigated owing to a novel sample preparation method combining twin-jet electro-polishing, in-situ TEM heating and FIB. The results reveal that the small-scale plasticity is mainly controlled by the conversion of few tangled dislocations, still present after heating, into stable single arm sources (SASs) as well as by the successive operation of these sources. Strain hardening resulting from the operation of an individual SAS is reported and attributed to the decrease of the length of the source. Moreover, the impact of the shortening of the dislocation source on the intermittent plastic flow, characteristic of SASs, is discussed. These findings provide essential information for the understanding of the regime of ‘dislocation source’ controlled plasticity and the related mechanical size effect. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000460200900001 | Publication Date | 2018-08-07 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2045-2322 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.259 | Times cited | 9 | Open Access | Not_Open_Access |
| Notes | Financial support from the Flemish (FWO) and German Research Foundation (DFG) through the European M-ERA.NET project “FaSS” (Fatigue Simulation near Surfaces) under the grant numbers GA.014.13 N and SCHW855/5-1, respectively, is gratefully acknowledged. V. Samaee also acknowledges the FWO research project G012012N “Understanding nanocrystalline mechanical behaviour from structural investigations”. H. Idrissi is mandated by the Belgian National Fund for Scientific Research (FSR-FNRS). Dr. Ruth Schwaiger is acknowledged for providing the Ni foils used to prepare the in-situ TEM tensile specimens. | Approved | Most recent IF: 4.259 | ||
| Call Number | EMAT @ emat @c:irua:155772 | Serial | 5136 | ||
| Permanent link to this record | |||||
| Author | Snoeckx, R.; Wang, W.; Zhang, X.; Cha, M.S.; Bogaerts, A. | ||||
| Title | Plasma-based multi-reforming for Gas-To-Liquid: tuning the plasma chemistry towards methanol | Type | A1 Journal article | ||
| Year | 2018 | Publication | Scientific reports | Abbreviated Journal |
Sci Rep-Uk |
| Volume | 8 | Issue | 1 | Pages | 15929 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) | ||||
| Abstract | Because of its unique properties, plasma technology has gained much prominence in the microelectronics industry. Recently, environmental and energy applications of plasmas have gained a lot of attention. In this area, the focus is on converting CO 2 and reforming hydrocarbons, with the goal of developing an efficient single-step ‘gas-to-liquid’ (GTL) process. Here we show that applying tri-reforming principles to plasma—further called ‘plasma-based multi-reforming’—allows us to better control the plasma chemistry and thus the formed products. To demonstrate this, we used chemical kinetics calculations supported by experiments and reveal that better control of the plasma chemistry can be achieved by adding O 2 or H 2 O to a mixture containing CH 4 and CO 2 (diluted in N 2 ). Moreover, by adding O 2 and H 2 O simultaneously, we can tune the plasma chemistry even further, improving the conversions, thermal efficiency and methanol yield. Unlike thermocatalytic reforming, plasma-based reforming is capable of producing methanol in a single step; and compared with traditional plasma-based dry reforming, plasma-based multi-reforming increases the methanol yield by more than seven times and the thermal efficiency by 49%, as revealed by our model calculations. Thus, we believe that by using plasma-based multi-reforming, ‘gas-to-liquid’ conversion may be made efficient and scalable. |
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| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000448589200005 | Publication Date | 2018-10-23 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2045-2322 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.259 | Times cited | Open Access | OpenAccess | |
| Notes | The authors acknowledge financial support from the Competitive Research Funding from King Abdullah University of Science and Technology (KAUST), the European Marie Skłodowska-Curie Individual Fellowship “GlidArc” within Horizon2020 (Grant No. 657304), the Fund for Scientific Research Flanders (FWO) (grant nos G.0217.14 N, G.0254.14 N and G.0383.16 N) and the IAP/7 (Inter-university Attraction Pole) program ‘PSI-Physical Chemistry of Plasma-Surface Interactions’, financially supported by the Belgian Federal Office for Science Policy (BELSPO). This work was carried out, in part, using the Turing HPC infrastructure at the CalcUA core facility of the Universiteit Antwerpen, a division of the Flemish Supercomputer Center VSC, funded by the Hercules Foundation, the Flemish Government (department EWI) and the University of Antwerp. | Approved | Most recent IF: 4.259 | ||
| Call Number | PLASMANT @ plasmant @c:irua:154868 | Serial | 5066 | ||
| Permanent link to this record | |||||
| Author | Razzokov, J.; Yusupov, M.; Bogaerts, A. | ||||
| Title | Oxidation destabilizes toxic amyloid beta peptide aggregation | Type | A1 Journal article | ||
| Year | 2019 | Publication | Scientific reports | Abbreviated Journal |
Sci Rep-Uk |
| Volume | 9 | Issue | 1 | Pages | 5476 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) | ||||
| Abstract | The aggregation of insoluble amyloid beta (Aβ) peptides in the brain is known to trigger the onset of neurodegenerative diseases, such as Alzheimer’s disease. In spite of the massive number of investigations, the underlying mechanisms to destabilize the Aβ aggregates are still poorly understood. Some studies indicate the importance of oxidation to destabilize the Aβ aggregates. In particular, oxidation induced by cold atmospheric plasma (CAP) has demonstrated promising results in eliminating these toxic aggregates. In this paper, we investigate the effect of oxidation on the stability of an Aβ pentamer. By means of molecular dynamics simulations and umbrella sampling, we elucidate the conformational changes of Aβ pentamer in the presence of oxidized residues, and we estimate the dissociation free energy of the terminal peptide out of the pentamer form. The calculated dissociation free energy of the terminal peptide is also found to decrease with increasing oxidation. This indicates that Aβ pentamer aggregation becomes less favorable upon oxidation. Our study contributes to a better insight in one of the potential mechanisms for inhibition of toxic Aβ peptide aggregation, which is considered to be the main culprit to Alzheimer’s disease. | ||||
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| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000462990000018 | Publication Date | 2019-04-02 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2045-2322 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.259 | Times cited | 5 | Open Access | OpenAccess |
| Notes | M.Y. gratefully acknowledges financial support from the Research Foundation – Flanders (FWO), grant 1200216N and 1200219N. The computational work was carried out using the Turing HPC infrastructure at the CalcUA core facility of the Universiteit Antwerpen (UA), a division of the Flemish Supercomputer Center VSC, funded by the Hercules Foundation, the Flemish Government (department EWI) and the UA. | Approved | Most recent IF: 4.259 | ||
| Call Number | PLASMANT @ plasmant @UA @ admin @ c:irua:159367 | Serial | 5182 | ||
| Permanent link to this record | |||||
| Author | Idrissi, H.; Ghidelli, M.; Béché, A.; Turner, S.; Gravier, S.; Blandin, J.-J.; Raskin, J.-P.; Schryvers, D.; Pardoen, T. | ||||
| Title | Atomic-scale viscoplasticity mechanisms revealed in high ductility metallic glass films | Type | A1 Journal article | ||
| Year | 2019 | Publication | Scientific reports | Abbreviated Journal |
Sci Rep-Uk |
| Volume | 9 | Issue | 1 | Pages | 13426 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) | ||||
| Abstract | The fundamental plasticity mechanisms in thin freestanding Zr65Ni35 metallic glass films are investigated in order to unravel the origin of an outstanding strength/ductility balance. The deformation process is homogenous until fracture with no evidence of catastrophic shear banding. The creep/relaxation behaviour of the films was characterized by on-chip tensile testing, revealing an activation volume in the range 100–200 Å3. Advanced high-resolution transmission electron microscopy imaging and spectroscopy exhibit a very fine glassy nanostructure with well-defined dense Ni-rich clusters embedded in Zr-rich clusters of lower atomic density and a ~2–3 nm characteristic length scale. Nanobeam electron diffraction analysis reveals that the accumulation of plastic deformation at roomtemperature correlates with monotonously increasing disruption of the local atomic order. These results provide experimental evidences of the dynamics of shear transformation zones activation in metallic glasses. The impact of the nanoscale structural heterogeneities on the mechanical properties including the rate dependent behaviour is discussed, shedding new light on the governing plasticity mechanisms in metallic glasses with initially heterogeneous atomic arrangement. |
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| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000486139700008 | Publication Date | 2019-09-17 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2045-2322 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.259 | Times cited | Open Access | ||
| Notes | H. Idrissi is mandated by the Belgian National Fund for Scientific Research (FSR-FNRS). This work was supported by the FNRS under Grant PDR – T.0178.19. FWO project G093417N (‘Compressed sensing enabling low dose imaging in transmission electron microscopy’) and Hercules fund ‘Direct electron detector for soft matter TEM’ from Flemish Government are acknowledged. | Approved | Most recent IF: 4.259 | ||
| Call Number | EMAT @ emat @c:irua:162786 | Serial | 5375 | ||
| Permanent link to this record | |||||
| Author | Cordoba, R.; Orus, P.; Jelić, Ž.L.; Sese, J.; Ricardo Ibarra, M.; Guillamon, I.; Vieira, S.; Jose Palacios, J.; Suderow, H.; Milošević, M.V.; Maria De Teresa, J. | ||||
| Title | Long-range vortex transfer in superconducting nanowires | Type | A1 Journal article | ||
| Year | 2019 | Publication | Scientific reports | Abbreviated Journal |
Sci Rep-Uk |
| Volume | 9 | Issue | 9 | Pages | 12386 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Condensed Matter Theory (CMT) | ||||
| Abstract | Under high-enough values of perpendicularly-applied magnetic field and current, a type-II superconductor presents a finite resistance caused by the vortex motion driven by the Lorentz force. To recover the dissipation-free conduction state, strategies for minimizing vortex motion have been intensely studied in the last decades. However, the non-local vortex motion, arising in areas depleted of current, has been scarcely investigated despite its potential application for logic devices. Here, we propose a route to transfer vortices carried by non-local motion through long distances (up to 10 micrometers) in 50 nm-wide superconducting WC nanowires grown by Ga+ Focused Ion Beam Induced Deposition. A giant non-local electrical resistance of 36 Omega has been measured at 2 K in 3 mu m-long nanowires, which is 40 times higher than signals reported for wider wires of other superconductors. This giant effect is accounted for by the existence of a strong edge confinement potential that hampers transversal vortex displacements, allowing the long-range coherent displacement of a single vortex row along the superconducting channel. Experimental results are in good agreement with numerical simulations of vortex dynamics based on the time-dependent Ginzburg-Landau equations. Our results pave the way for future developments on information technologies built upon single vortex manipulation in nano-superconductors. | ||||
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| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000482708800004 | Publication Date | 2019-08-27 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2045-2322 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.259 | Times cited | 13 | Open Access | |
| Notes | ; This work was supported by the financial support from Spanish Ministry of Economy and Competitiveness through the projects MAT2015-69725-REDT, MAT2017-82970-C2-1-R and MAT2017-82970-C2-2-R, PIE201760E027, including FEDER funding, FIS2017-84330-R, MDM-2014-0377, FIS2016-80434-P and the Fundacion Ramon Areces, EU ERC (Grant Agreement No. 679080), COST Grant No. CA16128 and STSM Grant from COST Action CA16218, and from regional Gobierno de Aragon (grants E1317R and E2817R) with European Social Fund (Construyendo Europa desde Aragon) and Comunidad de Madrid through project Nanofrontmag-CM (Grant No. S2013/MIT-2850). R.C. acknowledges Juan de la Cierva-Incorporacion 2014 program. Authors strongly acknowledge Laura Casado and Isabel Rivas for TEM sample preparation, Rodrigo Fernandez-Pacheco for TEM experiments and Ruben Valero for the UV lithography process. The microscopy works have been conducted in the “Laboratorio de Microscopias Avanzadas” at “Instituto de Nanociencia de Aragon – Universidad de Zaragoza”. Authors acknowledge the LMA-INA for offering access to their instruments and expertise. Authors would like to acknowledge the use of Servicio General de Apoyo a la Investigacion-SAI, Universidad de Zaragoza, particularly the Servicio de Medidas Fisicas. We also acknowledge the computer resources and assistance provided by the Centro de Computacion Cientifica of the Universidad Autonoma de Madrid. ; | Approved | Most recent IF: 4.259 | ||
| Call Number | UA @ admin @ c:irua:162868 | Serial | 5420 | ||
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| Author | Do, M.T.; Gauquelin, N.; Nguyen, M.D.; Wang, J.; Verbeeck, J.; Blom, F.; Koster, G.; Houwman, E.P.; Rijnders, G. | ||||
| Title | Interfacial dielectric layer as an origin of polarization fatigue in ferroelectric capacitors | Type | A1 Journal article | ||
| Year | 2020 | Publication | Scientific Reports | Abbreviated Journal |
Sci Rep-Uk |
| Volume | 10 | Issue | 1 | Pages | 7310 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) | ||||
| Abstract | Origins of polarization fatigue in ferroelectric capacitors under electric field cycling still remain unclear. Here, we experimentally identify origins of polarization fatigue in ferroelectric PbZr0.52Ti0.48O3 (PZT) thin-film capacitors by investigating their fatigue behaviours and interface structures. The PZT layers are epitaxially grown on SrRuO3-buffered SrTiO3 substrates by a pulsed laser deposition (PLD), and the capacitor top-electrodes are various, including SrRuO3 (SRO) made by in-situ PLD, Pt by in-situ PLD (Pt-inPLD) and ex-situ sputtering (Pt-sputtered). We found that fatigue behaviour of the capacitor is directly related to the top-electrode/PZT interface structure. The Pt-sputtered/PZT/SRO capacitor has a thin defective layer at the top interface and shows early fatigue while the Pt-inPLD/PZT/SRO and SRO/PZT/SRO capacitor have clean top-interfaces and show much more fatigue resistance. The defective dielectric layer at the Pt-sputtered/PZT interface mainly contains carbon contaminants, which form during the capacitor ex-situ fabrication. Removal of this dielectric layer significantly delays the fatigue onset. Our results clearly indicate that dielectric layer at ferroelectric capacitor interfaces is the main origin of polarization fatigue, as previously proposed in the charge injection model. | ||||
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| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000559953800003 | Publication Date | 2020-04-30 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2045-2322 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.6 | Times cited | 18 | Open Access | OpenAccess |
| Notes | ; The authors acknowledge the financial support of the Nederlandse Organisatie voor Wetenschappelijk Onderzoek through Grant No. F62.3.15559. ; | Approved | Most recent IF: 4.6; 2020 IF: 4.259 | ||
| Call Number | EMAT @ emat @c:irua:169865 | Serial | 6374 | ||
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| Author | Reclusa, P.; Verstraelen, P.; Taverna, S.; Gunasekaran, M.; Pucci, M.; Pintelon, I.; Claes, N.; de Miguel-Pérez, D.; Alessandro, R.; Bals, S.; Kaushal, S.; Rolfo, C. | ||||
| Title | Improving extracellular vesicles visualization: From static to motion | Type | A1 Journal article | ||
| Year | 2020 | Publication | Scientific Reports | Abbreviated Journal |
Sci Rep-Uk |
| Volume | 10 | Issue | 10 | Pages | 6494 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) | ||||
| Abstract | In the last decade extracellular vesicles (EVs) have become a hot topic. The findings on EVs content and effects have made them a major field of interest in cancer research. EVs, are able to be internalized through integrins expressed in parental cells, in a tissue specific manner, as a key step of cancer progression and pre-metastatic niche formation. However, this specificity might lead to new opportunities in cancer treatment by using EVs as devices for drug delivery. For future applications of EVs in cancer, improved protocols and methods for EVs isolation and visualization are required. Our group has put efforts on developing a protocol, able to track the EVs for in vivo internalization analysis. We showed, for the first time, the videos of labeled EVs uptake by living lung cancer cells. | ||||
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| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000562145000002 | Publication Date | 2020-04-16 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2045-2322 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.6 | Times cited | 25 | Open Access | OpenAccess |
| Notes | Marzia Pucci is supported by a “AIRC” (Associazione Italiana Ricerca sul Cancro) fellowship. “The Leica SP 8 (Hercules grant AUHA.15.12) microscope was funded by the Hercules Foundation of the Flemish Government.” DdM-P is funded by the University of Granada PhD grant and University of Granada international mobility grant 2018/19. | Approved | Most recent IF: 4.6; 2020 IF: 4.259 | ||
| Call Number | EMAT @ emat @c:irua:169234 | Serial | 6362 | ||
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| Author | Bafekry, A.; Stampfl, C.; Peeters, F.M. | ||||
| Title | Dirac half-metallicity of thin PdCl₃ nanosheets : investigation of the effects of external fields, surface adsorption and defect engineering on the electronic and magnetic properties | Type | A1 Journal article | ||
| Year | 2020 | Publication | Scientific Reports | Abbreviated Journal |
Sci Rep-Uk |
| Volume | 10 | Issue | 1 | Pages | 213-215 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Condensed Matter Theory (CMT) | ||||
| Abstract | PdCl3 belongs to a novel class of Dirac materials with Dirac spin-gapless semiconducting characteristics. In this paper based, on first-principles calculations, we have systematically investigated the effect of adatom adsorption, vacancy defects, electric field, strain, edge states and layer thickness on the electronic and magnetic properties of PdCl3 (palladium trichloride). Our results show that when spin-orbital coupling is included, PdCl3 exhibits the quantum anomalous Hall effect with a non-trivial band gap of 24 meV. With increasing number of layers, from monolayer to bulk, a transition occurs from a Dirac half-metal to a ferromagnetic metal. On application of a perpendicular electrical field to bilayer PdCl3, we find that the energy band gap decreases with increasing field. Uniaxial and biaxial strain, significantly modifies the electronic structure depending on the strain type and magnitude. Adsorption of adatom and topological defects have a dramatic effect on the electronic and magnetic properties of PdCl3. In particular, the structure can become a metal (Na), half-metal (Be, Ca, Al, Ti, V, Cr, Fe and Cu with, respective, 0.72, 9.71, 7.14, 6.90, 9.71, 4.33 and 9.5 μB magnetic moments), ferromagnetic-metal (Sc, Mn and Co with 4.55, 7.93 and 2.0 μB), spin-glass semiconductor (Mg, Ni with 3.30 and 8.63 μB), and dilute-magnetic semiconductor (Li, K and Zn with 9.0, 9.0 and 5.80 μB magnetic moment, respectively). Single Pd and double Pd + Cl vacancies in PdCl3 display dilute-magnetic semiconductor characteristics, while with a single Cl vacancy, the material becomes a half-metal. The calculated optical properties of PdCl3 suggest it could be a good candidate for microelectronic and optoelectronics devices. | ||||
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| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000562795700001 | Publication Date | 2020-01-14 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2045-2322 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.6 | Times cited | 26 | Open Access | |
| Notes | ; This work was supported by the Flemish Science Foundation (FWO-Vl). We are thankful for comments by Sevil Sarikurt from the department of physics in Dokuz Eylul University. In addition, we acknowledge OpenMX team for OpenMX code. ; | Approved | Most recent IF: 4.6; 2020 IF: 4.259 | ||
| Call Number | UA @ admin @ c:irua:169751 | Serial | 6483 | ||
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| Author | Van Cauwenbergh, P.; Samaee, V.; Thijs, L.; Nejezchlebova, J.; Sedlak, P.; Ivekovic, A.; Schryvers, D.; Van Hooreweder, B.; Vanmeensel, K. | ||||
| Title | Unravelling the multi-scale structure-property relationship of laser powder bed fusion processed and heat-treated AlSi10Mg | Type | A1 Journal article | ||
| Year | 2021 | Publication | Scientific Reports | Abbreviated Journal |
Sci Rep-Uk |
| Volume | 11 | Issue | 1 | Pages | 6423 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) | ||||
| Abstract | Tailoring heat treatments for Laser Powder Bed Fusion (LPBF) processed materials is critical to ensure superior and repeatable material properties for high-end applications. This tailoring requires in-depth understanding of the LPBF-processed material. Therefore, the current study aims at unravelling the threefold interrelationship between the process (LPBF and heat treatment), the microstructure at different scales (macro-, meso-, micro-, and nano-scale), and the macroscopic material properties of AlSi10Mg. A similar solidification trajectory applies at different length scales when comparing the solidification of AlSi10Mg, ranging from mould-casting to rapid solidification (LPBF). The similarity in solidification trajectories triggers the reason why the Brody-Flemings cellular microsegregation solidification model could predict the cellular morphology of the LPBF as-printed microstructure. Where rapid solidification occurs at a much finer scale, the LPBF microstructure exhibits a significant grain refinement and a high degree of silicon (Si) supersaturation. This study has identified the grain refinement and Si supersaturation as critical assets of the as-printed microstructure, playing a vital role in achieving superior mechanical and thermal properties during heat treatment. Next, an electrical conductivity model could accurately predict the Si solute concentration in LPBF-processed and heat-treated AlSi10Mg and allows understanding the microstructural evolution during heat treatment. The LPBF-processed and heat-treated AlSi10Mg conditions (as-built (AB), direct-aged (DA), stress-relieved (SR), preheated (PH)) show an interesting range of superior mechanical properties (tensile strength: 300-450 MPa, elongation: 4-13%) compared to the mould-cast T6 reference condition. | ||||
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| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000632047000003 | Publication Date | 2021-03-19 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2045-2322 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.259 | Times cited | Open Access | OpenAccess | |
| Notes | Approved | Most recent IF: 4.259 | |||
| Call Number | UA @ admin @ c:irua:177634 | Serial | 6791 | ||
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| Author | Shaw, P.; Kumar, N.; Mumtaz, S.; Lim, J.S.; Jang, J.H.; Kim, D.; Sahu, B.D.; Bogaerts, A.; Choi, E.H. | ||||
| Title | Evaluation of non-thermal effect of microwave radiation and its mode of action in bacterial cell inactivation | Type | A1 Journal Article | ||
| Year | 2021 | Publication | Scientific Reports | Abbreviated Journal |
Sci Rep-Uk |
| Volume | 11 | Issue | 1 | Pages | 14003 |
| Keywords | A1 Journal Article; Plasma, laser ablation and surface modeling Antwerp (PLASMANT) ; | ||||
| Abstract | A growing body of literature has recognized the non-thermal effect of pulsed microwave radiation (PMR) on bacterial systems. However, its mode of action in deactivating bacteria has not yet been extensively investigated. Nevertheless, it is highly important to advance the applications of PMR from simple to complex biological systems. In this study, we first optimized the conditions of the PMR device and we assessed the results by simulations, using ANSYS HFSS (High Frequency Structure Simulator) and a 3D particle-in-cell code for the electron behavior, to provide a better overview of the bacterial cell exposure to microwave radiation. To determine the sensitivity of PMR,<italic>Escherichia coli</italic> and<italic>Staphylococcus aureus</italic>cultures were exposed to PMR (pulse duration: 60 ns, peak frequency: 3.5 GHz) with power density of 17 kW/cm<sup>2</sup>at the free space of sample position, which would induce electric field of 8.0 kV/cm inside the PBS solution of falcon tube in this experiment at 25 °C. At various discharges (D) of microwaves, the colony forming unit curves were analyzed. The highest ratios of viable count reductions were observed when the doses were increased from 20D to 80D, which resulted in an approximate 6 log reduction in <italic>E. coli</italic>and 4 log reduction in<italic>S. aureus.</italic>Moreover, scanning electron microscopy also revealed surface damage in both bacterial strains after PMR exposure. The bacterial inactivation was attributed to the deactivation of oxidation-regulating genes and DNA damage. | ||||
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| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000674547300011 | Publication Date | 2021-07-07 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2045-2322 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.259 | Times cited | Open Access | OpenAccess | |
| Notes | Department of Biotechnology, Ministry of Science and Technology, India, D.O.NO.BT/HRD/35/02/2006 ; National Research Foundation of Korea, NRF-2016K1A4A3914113 ; This research was supported by the National Research Foundation (NRF) of Korea, funded by the Korean government (MSIT) under the Grant Number NRF-2016K1A4A3914113, and in part by Kwangwoon University, Seoul, Korea, 2021. We also gratefully acknowledge the financial support obtained from Department of Biotechnology (DBT) Ramalingaswami Re-entry Fellowship, India, Grant Number D.O.NO.BT/HRD/35/02/2006. | Approved | Most recent IF: 4.259 | ||
| Call Number | PLASMANT @ plasmant @c:irua:179844 | Serial | 6800 | ||
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| Author | Lebedev, N.; Stehno, M.; Rana, A.; Reith, P.; Gauquelin, N.; Verbeeck, J.; Hilgenkamp, H.; Brinkman, A.; Aarts, J. | ||||
| Title | Gate-tuned anomalous Hall effect driven by Rashba splitting in intermixed LaAlO3/GdTiO3/SrTiO3 | Type | A1 Journal article | ||
| Year | 2021 | Publication | Scientific Reports | Abbreviated Journal |
Sci Rep-Uk |
| Volume | 11 | Issue | 1 | Pages | 10726 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) | ||||
| Abstract | The Anomalous Hall Effect (AHE) is an important quantity in determining the properties and understanding the behaviour of the two-dimensional electron system forming at the interface of SrTiO<sub>3</sub>-based oxide heterostructures. The occurrence of AHE is often interpreted as a signature of ferromagnetism, but it is becoming more and more clear that also paramagnets may contribute to AHE. We studied the influence of magnetic ions by measuring intermixed LaAlO<sub>3</sub>/GdTiO<sub>3</sub>/SrTiO<sub>3</sub>at temperatures below 10 K. We find that, as function of gate voltage, the system undergoes a Lifshitz transition while at the same time an onset of AHE is observed. However, we do not observe clear signs of ferromagnetism. We argue the AHE to be due to the change in Rashba spin-orbit coupling at the Lifshitz transition and conclude that also paramagnetic moments which are easily polarizable at low temperatures and high magnetic fields lead to the presence of AHE, which needs to be taken into account when extracting carrier densities and mobilities. | ||||
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| Language | Wos | 000658820100014 | Publication Date | 2021-05-21 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2045-2322 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.259 | Times cited | 5 | Open Access | OpenAccess |
| Notes | J.V. and N.G. acknowledge funding from the Geconcentreerde Onderzoekacties (GOA) project “Solarpaint” of the University of Antwerp and the European Union’s horizon 2020 research and innovation programme ESTEEM3 under grant agreement 823717. The Qu-Ant-EM microscope used in this study was partly funded by the Hercules fund from the Flemish Government.; esteem3TA; esteem3reported | Approved | Most recent IF: 4.259 | ||
| Call Number | EMAT @ emat @c:irua:179608 | Serial | 6822 | ||
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