Cu2+ chemosensing behaviour of self-organized micro-array structures of a donor-acceptor bichromophoric compound anchored onto Ag nanoisland films
| Autor: | Giancarlo Margheri, Pierangelo Fabbrizzi, T. Del Rosso, Emilia Giorgetti, Francesco S. Pavone, A. Carloni, Alessio Rindi, Maurizio Muniz-Miranda, Stefano Cicchi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
Detection limit
Copper chemosensors Quenching (fluorescence) Materials science SERS Metals and Alloys Metal nanoisland films chemistry.chemical_element Raman quenching Condensed Matter Physics Photochemistry Fluorescence Copper Surfaces Coatings and Films Electronic Optical and Magnetic Materials Fluorescence quenching Electron transfer chemistry Materials Chemistry Fluorescence microscope Moiety Electrical and Electronic Engineering Spectroscopy Instrumentation |
| Zdroj: | Sensors and actuators. B, Chemical 155 (2011): 46–52. doi:10.1016/j.snb.2010.11.021 info:cnr-pdr/source/autori:T. Del Rosso (a); E. Giorgetti (a); G. Margheri (a); A. Rindi (b); M. Muniz-Miranda (c,d); A. Carloni (d); F. Pavone (d); P. Fabbrizzi (c); S. Cicchi (c)/titolo:Cu2+ chemosensing behaviour of self-organized micro-array structures of a donor-acceptor bichromophoric compound anchored onto Ag nanoisland films/doi:10.1016%2Fj.snb.2010.11.021/rivista:Sensors and actuators. B, Chemical (Print)/anno:2011/pagina_da:46/pagina_a:52/intervallo_pagine:46–52/volume:155 |
| DOI: | 10.1016/j.snb.2010.11.021 |
| Popis: | 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 x 10(-8) M up to 3 x 10(-6) M and limit of detection (LOD) of 8 x 10(-9) M. 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. (C) 2010 Elsevier B.V. All rights reserved. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|