G
Geert Silversmit
Researcher at Ghent University
Publications - 104
Citations - 4098
Geert Silversmit is an academic researcher from Ghent University. The author has contributed to research in topics: Cosmic dust & Cancer registry. The author has an hindex of 25, co-authored 93 publications receiving 3452 citations. Previous affiliations of Geert Silversmit include European Synchrotron Radiation Facility.
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Journal ArticleDOI
Determination of the V2p XPS binding energies for different vanadium oxidation states (V5+ to V0+)
TL;DR: In this paper, the binding energy of the V2p3/2 core level for each vanadium oxidation state is fixed relative to the O1s level, and satellite peaks are added to the fit especially for the lower vanadium oxides.
Journal ArticleDOI
Hydrous mantle transition zone indicated by ringwoodite included within diamond
D.G. Pearson,Frank E. Brenker,Fabrizio Nestola,J. McNeill,Lutz Nasdala,MT Hutchison,S. Matveev,Kathy A. Mather,Geert Silversmit,Sylvia Schmitz,Bart Vekemans,Laszlo Vincze +11 more
TL;DR: X-ray diffraction, Raman and infrared spectroscopic data are reported that provide the first evidence for the terrestrial occurrence of any higher-pressure polymorph of olivine: ringwoodite is included in a diamond from Juína, Brazil, providing direct evidence that, at least locally, the transition zone is hydrous.
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Fate and effects of CeO2 nanoparticles in aquatic ecotoxicity tests.
Karen Van Hoecke,Joris T.K. Quik,Joanna Mankiewicz-Boczek,Joanna Mankiewicz-Boczek,Karel A.C. De Schamphelaere,Andreas Elsaesser,Paul Van der Meeren,Clifford Barnes,George McKerr,C. Vyvyan Howard,Dik van de Meent,K. Rydzynski,Kenneth A. Dawson,Anna Salvati,Anna Lesniak,Iseult Lynch,Geert Silversmit,Bjoern De Samber,Laszlo Vincze,Colin R. Janssen +19 more
TL;DR: Toxicity could not be related to a direct effect of dissolved Ce or CeO2 NP uptake or adsorption, nor to an indirect effect of nutrient depletion (by sorption to NPs) or physical light restriction (through shading by the NPs), but observed clustering of NPs around algal cells may locally cause a direct or indirect effect.
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Evidence for interstellar origin of seven dust particles collected by the Stardust spacecraft
Andrew J. Westphal,Rhonda M. Stroud,Hans A. Bechtel,Frank E. Brenker,Anna L. Butterworth,George J. Flynn,D. Frank,Zack Gainsforth,Jon K. Hillier,Frank Postberg,Alexandre Simionovici,Veerle Sterken,Larry R. Nittler,Carlton Allen,Dustin Anderson,Asna Ansari,Saša Bajt,Ron K. Bastien,Nabil Bassim,John Bridges,Donald E. Brownlee,Mark J. Burchell,Manfred Burghammer,Hitesh Changela,Peter Cloetens,Andrew M. Davis,Ryan Doll,Christine Floss,Eberhard Grün,Philipp R. Heck,Peter Hoppe,Bruce Hudson,Joachim Huth,Anton T. Kearsley,Ashley J. King,Barry Lai,Jan Leitner,Laurence Lemelle,Ariel Leonard,Hugues Leroux,R. Lettieri,William Marchant,Ryan C. Ogliore,Wei Jia Ong,Mark C. Price,Scott A. Sandford,Juan-Angel Sans Tresseras,Sylvia Schmitz,Tom Schoonjans,Kate Schreiber,Geert Silversmit,Vicente A. Solé,Ralf Srama,Frank J. Stadermann,Thomas Stephan,Julien Stodolna,Stephen R. Sutton,Mario Trieloff,Peter Tsou,Tolek Tyliszczak,Bart Vekemans,Laszlo Vincze,Joshua Von Korff,Naomi Wordsworth,Daniel Zevin,Michael E. Zolensky +65 more
TL;DR: The Stardust Interstellar Dust Collector captured seven particles and returned to Earth for laboratory analysis have features consistent with an origin in the contemporary interstellar dust stream and more than 50 spacecraft debris particles were also identified as discussed by the authors.
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An XPS study on the surface reduction of V2O5(001) induced by Ar+ ion bombardment
TL;DR: In this article, the effect of irradiation with Al Kα X-rays during an XPS measurement upon the surface vanadium oxidation state of a fresh in vacuum cleaved V 2 O 5 (0.0.1) crystal was examined.