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A Versatile Strategy for Signal Amplification Based on Core/Shell Silica Nanoparticles
Author(s) -
Rampazzo Enrico,
Bonacchi Sara,
Genovese Damiano,
Juris Riccardo,
Sgarzi Massimo,
Montalti Marco,
Prodi Luca,
Zaccheroni Nelsi,
Tomaselli Gaetano,
Gentile Salvatore,
Satriano Cristina,
Rizzarelli Enrico
Publication year - 2011
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201101851
Subject(s) - copper , nanoparticle , förster resonance energy transfer , computer science , scheme (mathematics) , fluorescence , energy transfer , nanotechnology , shell (structure) , core (optical fiber) , metal , ion , signal (programming language) , chemistry , materials science , telecommunications , physics , organic chemistry , optics , mathematical analysis , mathematics , molecular physics , composite material , programming language
Fancy a copper? A sensing system for copper(I) ions, based on the interplay between a “classical” chemosensor and a fluorescent silica nanoparticle, is presented (see scheme). The occurrence of properly designed energy transfer processes and the observed increase of the affinity of the nanosystem towards Cu + improve sensor performance at low metal ion concentrations in living cells.