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Erschienen in: Journal of Nanoparticle Research 3/2014

01.03.2014 | Research Paper

New-coated fluorescent silver nanoparticles with a fluorescein thiol esther derivative: fluorescent enhancement upon interaction with heavy metal ions

verfasst von: Javier Fernández-Lodeiro, Cristina Nuñez, Adrián Fernández Lodeiro, Elisabete Oliveira, Benito Rodríguez-González, Alcindo A. Dos Santos, José Luis Capelo, Carlos Lodeiro

Erschienen in: Journal of Nanoparticle Research | Ausgabe 3/2014

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Abstract

A new fluorescein thiol esther derivative L was successfully synthesized and fully characterized. The interaction of compound L with spherical silver nanoparticles (AgNPs) was explored in toluene, through the exchange of the tetraoctylammonium bromated (TOAB) molecules stabilizing the silver nanoparticle surface (AgNPs@TOAB). A new hybrid system AgNPs@L was obtained in which an intense metal-enhancement fluorescence phenomenon takes place. The behaviour of the new-coated AgNPs@L system was explored in the presence of silent toxic metal ions, such as Hg2+, Pb2+ and Tl+ in organic phase. Surprisingly, system AgNPs@L reveals to be sensitive to Hg2+ ions over the other heavy metal ions studied.

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Metadaten
Titel
New-coated fluorescent silver nanoparticles with a fluorescein thiol esther derivative: fluorescent enhancement upon interaction with heavy metal ions
verfasst von
Javier Fernández-Lodeiro
Cristina Nuñez
Adrián Fernández Lodeiro
Elisabete Oliveira
Benito Rodríguez-González
Alcindo A. Dos Santos
José Luis Capelo
Carlos Lodeiro
Publikationsdatum
01.03.2014
Verlag
Springer Netherlands
Erschienen in
Journal of Nanoparticle Research / Ausgabe 3/2014
Print ISSN: 1388-0764
Elektronische ISSN: 1572-896X
DOI
https://doi.org/10.1007/s11051-014-2315-4

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