Light-assisted synthesis and functionalization of silver nanoparticles with thiol derivative thioxanthones: new insights into the engineering of metal/chromophore nanoassemblies
Identifieur interne : 000467 ( Main/Exploration ); précédent : 000466; suivant : 000468Light-assisted synthesis and functionalization of silver nanoparticles with thiol derivative thioxanthones: new insights into the engineering of metal/chromophore nanoassemblies
Auteurs : SONGLIN NIU [France] ; Raphaël Schneider [France] ; Loïc Vidal [France] ; Samar Hajjar-Garreau [France] ; Lavinia Balan [France]Source :
- Journal of nanoparticle research [ 1388-0764 ] ; 2014.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Argent.
English descriptors
- KwdEn :
Abstract
In this study, silver nanoparticles (Ag NPs) were generated, functionalized, and stabilized using a one-step photochemical approach that does not require more than few minutes with a low power near UV LED source. A series of thiol-functionalized thioxanthone (TX) derivatives were prepared and used for the photoinduced synthesis of Ag NPs and their surface functionalization and stabilization. Upon illumination, Ag+ ions are reduced by free radicals generated through an oxidoreductive process occurring between excited TX groups and N-methyldiethanolamine. This process generates monodispersed silver nanoparticles with an average diameter about 2-7 nm depending on the TX derivative used. Due to the strong interaction between Ag atoms and thiol groups of the ligands, AgNPs are capped in situ by TX derivatives and exhibit remarkable stability in solution. Subsequent studies carried out on silver NPs/TX nanoassemblies (designed as AgNPs@S-TX) demonstrated their potentials in free radical photopolymerization of acrylate monomers.
Affiliations:
- France
- Alsace (région administrative), Grand Est, Lorraine (région)
- Mulhouse, Nancy
- Université de Lorraine
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Le document en format XML
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xml:lang="fr"><term>Fonctionnalisation</term><term>Argent</term><term>Nanoparticule</term><term>Nanomatériau</term><term>Thiol</term><term>Chromophore</term><term>Nanostructure</term><term>Plan expérience</term><term>Diode électroluminescente</term><term>Eclairement</term><term>Interaction forte</term><term>Ligand</term><term>Polymérisation photochimique</term><term>Monomère</term><term>Nanocomposite</term><term>Résonance plasmon surface</term><term>8107B</term><term>6865</term><term>8560J</term><term>8560</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Argent</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">In this study, silver nanoparticles (Ag NPs) were generated, functionalized, and stabilized using a one-step photochemical approach that does not require more than few minutes with a low power near UV LED source. A series of thiol-functionalized thioxanthone (TX) derivatives were prepared and used for the photoinduced synthesis of Ag NPs and their surface functionalization and stabilization. Upon illumination, Ag<sup>+</sup> ions are reduced by free radicals generated through an oxidoreductive process occurring between excited TX groups and N-methyldiethanolamine. This process generates monodispersed silver nanoparticles with an average diameter about 2-7 nm depending on the TX derivative used. Due to the strong interaction between Ag atoms and thiol groups of the ligands, AgNPs are capped in situ by TX derivatives and exhibit remarkable stability in solution. Subsequent studies carried out on silver NPs/TX nanoassemblies (designed as AgNPs@S-TX) demonstrated their potentials in free radical photopolymerization of acrylate monomers.</div></front></TEI><affiliations><list><country><li>France</li></country><region><li>Alsace (région administrative)</li><li>Grand Est</li><li>Lorraine (région)</li></region><settlement><li>Mulhouse</li><li>Nancy</li></settlement><orgName><li>Université de Lorraine</li></orgName></list><tree><country name="France"><region name="Grand Est"><name sortKey="Songlin Niu" sort="Songlin Niu" uniqKey="Songlin Niu" last="Songlin Niu">SONGLIN NIU</name></region><name sortKey="Balan, Lavinia" sort="Balan, Lavinia" uniqKey="Balan L" first="Lavinia" last="Balan">Lavinia Balan</name><name sortKey="Hajjar Garreau, Samar" sort="Hajjar Garreau, Samar" uniqKey="Hajjar Garreau S" first="Samar" last="Hajjar-Garreau">Samar Hajjar-Garreau</name><name sortKey="Schneider, Raphael" sort="Schneider, Raphael" uniqKey="Schneider R" first="Raphaël" last="Schneider">Raphaël Schneider</name><name sortKey="Vidal, Loic" sort="Vidal, Loic" uniqKey="Vidal L" first="Loïc" last="Vidal">Loïc Vidal</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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