Abstract

Tetrapyrrolic macrocycles are largely used in the sensing of vari-ous analytes both in liquid and in gaseous phase, but thestrong electronic delocalization of this class of molecules makesdifficult to realize a selective active layer. To overcome thisproblem, in the present work it is proposed the synthesis of asupramolecular adduct of zinc oxide nanostructure and a free-base tetra- pyridyl substituted porphyrin. The electronic struc-ture of the two organic/inorganic compounds allows to ob-serve a surface-enhanced Raman scattering (SERS) of the por-phyrin vibrational bands. This phenom enon is quenched by thepresence of mercuric and cupric ions according to two differentmechanisms monitored and explained by means of time re-solved fluorescence spectroscopy. It was demonstrated thatother substances in complex matrices, such as the food ex-tracts, do not affect the electronic communication betweenZnO and porphyrin preserving the SERS effect and minimizingthe effect of interfering compounds.

Autore Pugliese

• Bettini Simona , Valli Ludovico , Giancane Gabriele

Tutti gli autori

• Giancane G. , Bettini S. , Pagano R. , Valli L.

Titolo volume/Rivista

CHEMISTRYSELECT

Anno di pubblicazione

2016

ISSN

2365-6549

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

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Numero di citazioni Scopus

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Ultimo Aggiornamento Citazioni

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Settori ERC

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Codici ASJC

Non Disponibile