This work reports on the Cu2+ chemosensing behaviour of self-organized micro-array structures of a novel donor–acceptor bichromophoric compound anchored onto Ag nanoisland films. The system exhibits quenching of the fluorescence in the presence of Cu2+ ions, with detection range extending from 2 × 10−8M up to 3 × 10−6M and limit of detection (LOD) of 8 × 10−9M. The quenching of fluorescence is accompanied by a quenching of SERS signal from the metal-organic structure, which is consistent with an electron transfer between the copper cation and the organic moiety. The self-organization property of the sensing complexes into micrometric arrays offers great potential for miniaturization and future development of Cu2+ detection systems based on real-time observation of fluorescence or SERS quenching by fluorescence microscopy or microRaman spectroscopy.

Cu2+ chemosensing behaviour of self-organized micro-array structures of a donor–acceptor bichromophoric compound anchored onto Ag nanoisland films / DEL ROSSO, Tommaso; Giorgetti, E.; Margheri, G.; Rindi, Andrea; MUNIZ-MIRANDA, Maurizio; Carloni, Adolfo; Fabbrizzi, ; Pierangelo, Cicchi; Stefano, Pavone; Stefano,. - In: SENSORS AND ACTUATORS. B, CHEMICAL. - ISSN 0925-4005. - STAMPA. - 155:(2011), pp. 46-52. [10.1016/j.snb.2010.11.021]

Cu2+ chemosensing behaviour of self-organized micro-array structures of a donor–acceptor bichromophoric compound anchored onto Ag nanoisland films

DEL ROSSO, TOMMASO;A. Rindi;Muniz-miranda, Maurizio;A. Carloni;
2011

Abstract

This work reports on the Cu2+ chemosensing behaviour of self-organized micro-array structures of a novel donor–acceptor bichromophoric compound anchored onto Ag nanoisland films. The system exhibits quenching of the fluorescence in the presence of Cu2+ ions, with detection range extending from 2 × 10−8M up to 3 × 10−6M and limit of detection (LOD) of 8 × 10−9M. The quenching of fluorescence is accompanied by a quenching of SERS signal from the metal-organic structure, which is consistent with an electron transfer between the copper cation and the organic moiety. The self-organization property of the sensing complexes into micrometric arrays offers great potential for miniaturization and future development of Cu2+ detection systems based on real-time observation of fluorescence or SERS quenching by fluorescence microscopy or microRaman spectroscopy.
2011
155
46
52
DEL ROSSO, Tommaso; Giorgetti, E.; Margheri, G.; Rindi, Andrea; MUNIZ-MIRANDA, Maurizio; Carloni, Adolfo; Fabbrizzi, ; Pierangelo, Cicchi; Stefano, Pa...espandi
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/517283
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