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Authors = Thomas Marquart

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45 pages, 1157 KiB  
Article
A Decade with VAMDC: Results and Ambitions
by Damien Albert, Bobby K. Antony, Yaye Awa Ba, Yuri L. Babikov, Philippe Bollard, Vincent Boudon, Franck Delahaye, Giulio Del Zanna, Milan S. Dimitrijević, Brian J. Drouin, Marie-Lise Dubernet, Felix Duensing, Masahiko Emoto, Christian P. Endres, Alexandr Z. Fazliev, Jean-Michel Glorian, Iouli E. Gordon, Pierre Gratier, Christian Hill, Darko Jevremović, Christine Joblin, Duck-Hee Kwon, Roman V. Kochanov, Erumathadathil Krishnakumar, Giuseppe Leto, Petr A. Loboda, Anastasiya A. Lukashevskaya, Oleg M. Lyulin, Bratislav P. Marinković, Andrew Markwick, Thomas Marquart, Nigel J. Mason, Claudio Mendoza, Tom J. Millar, Nicolas Moreau, Serguei V. Morozov, Thomas Möller, Holger S. P. Müller, Giacomo Mulas, Izumi Murakami, Yury Pakhomov, Patrick Palmeri, Julien Penguen, Valery I. Perevalov, Nikolai Piskunov, Johannes Postler, Alexei I. Privezentsev, Pascal Quinet, Yuri Ralchenko, Yong-Joo Rhee, Cyril Richard, Guy Rixon, Laurence S. Rothman, Evelyne Roueff, Tatiana Ryabchikova, Sylvie Sahal-Bréchot, Paul Scheier, Peter Schilke, Stephan Schlemmer, Ken W. Smith, Bernard Schmitt, Igor Yu. Skobelev, Vladimir A. Srecković, Eric Stempels, Serguey A. Tashkun, Jonathan Tennyson, Vladimir G. Tyuterev, Charlotte Vastel, Veljko Vujčić, Valentine Wakelam, Nicholas A. Walton, Claude Zeippen and Carlo Maria Zwölfadd Show full author list remove Hide full author list
Atoms 2020, 8(4), 76; https://doi.org/10.3390/atoms8040076 - 21 Oct 2020
Cited by 85 | Viewed by 7755
Abstract
This paper presents an overview of the current status of the Virtual Atomic and Molecular Data Centre (VAMDC) e-infrastructure, including the current status of the VAMDC-connected (or to be connected) databases, updates on the latest technological development within the infrastructure and a presentation [...] Read more.
This paper presents an overview of the current status of the Virtual Atomic and Molecular Data Centre (VAMDC) e-infrastructure, including the current status of the VAMDC-connected (or to be connected) databases, updates on the latest technological development within the infrastructure and a presentation of some application tools that make use of the VAMDC e-infrastructure. We analyse the past 10 years of VAMDC development and operation, and assess their impact both on the field of atomic and molecular (A&M) physics itself and on heterogeneous data management in international cooperation. The highly sophisticated VAMDC infrastructure and the related databases developed over this long term make them a perfect resource of sustainable data for future applications in many fields of research. However, we also discuss the current limitations that prevent VAMDC from becoming the main publishing platform and the main source of A&M data for user communities, and present possible solutions under investigation by the consortium. Several user application examples are presented, illustrating the benefits of VAMDC in current research applications, which often need the A&M data from more than one database. Finally, we present our vision for the future of VAMDC. Full article
(This article belongs to the Special Issue Development and Perspectives of Atomic and Molecular Databases)
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22 pages, 1095 KiB  
Article
A Facile Route to Tailoring Peptide-Stabilized Gold Nanoparticles Using Glutathione as a Synthon
by Rosina Ho Wu, Tan P. Nguyen, Grant W. Marquart, Thomas J. Miesen, Theresa Mau and Marilyn R. Mackiewicz
Molecules 2014, 19(5), 6754-6775; https://doi.org/10.3390/molecules19056754 - 23 May 2014
Cited by 31 | Viewed by 13434
Abstract
The preparation of gold nanoparticles (AuNPs) of high purity and stability remains a major challenge for biological applications. This paper reports a simple synthetic strategy to prepare water-soluble peptide-stabilized AuNPs. Reduced glutathione, a natural tripeptide, was used as a synthon for the growth [...] Read more.
The preparation of gold nanoparticles (AuNPs) of high purity and stability remains a major challenge for biological applications. This paper reports a simple synthetic strategy to prepare water-soluble peptide-stabilized AuNPs. Reduced glutathione, a natural tripeptide, was used as a synthon for the growth of two peptide chains directly on the AuNP surface. Both nonpolar (tryptophan and methionine) and polar basic (histidine and dansylated arginine) amino acids were conjugated to the GSH-capped AuNPs. Ultracentrifugation concentrators with polyethersulfone (PES) membranes were used to purify precursor materials in each stage of the multi-step synthesis to minimize side reactions. Thin layer chromatography, transmission electron microscopy, UV-Visible, 1H-NMR, and fluorescence spectroscopies demonstrated that ultracentrifugation produces high purity AuNPs, with narrow polydispersity, and minimal aggregation. More importantly, it allows for more control over the composition of the final ligand structure. Studies under conditions of varying pH and ionic strength revealed that peptide length, charge, and hydrophobicity influence the stability as well as solubility of the peptide-capped AuNPs. The synthetic and purification strategies used provide a facile route for developing a library of tailored biocompatible peptide-stabilized AuNPs for biomedical applications. Full article
(This article belongs to the Special Issue Bioconjugations)
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