Issue 8, 2004
From the journal:

Journal of Materials Chemistry

Sensitivity-selectivity balance in mass sensors: the case of metalloporphyrins

C. Di Natale,ab   R. Paolesse,bc   A. Macagnano,b   S. Nardis,c   E. Martinelli,a   E. Dalcanale,d   M. Costad  and  A. D'Amicoab  

a Department of Electronic Engineering, University of Rome “Tor Vergata”, Via del Politecnico 1, 00133 Roma, Italy
E-mail: dinatale@uniroma2.it

b CNR-IMM, via del Fosso del Cavaliere, 00133 Roma, Italy

c Department of Chemical Science and Technology, University of Rome “Tor Vergata”, Via della Ricerca Scientifica, 00133 Roma, Italy

d Dipartimento di Chimica Organica ed Industriale, Università di Parma and INSTM, UdR Parma, Parco Area delle Scienze 17/A, 43100 Parma, Italy

Abstract

The influence of peripheral alkyl substituents on the sensing behaviour of metalloporphyrin-based Thickness Shear Mode Resonating sensors (TSMRs) has been investigated.

The presence of the alkyl chains improves the metalloporphyrin thin film permeability but at the same time increases the magnitude of non-specific interactions, reducing the influence of the intrinsic metalloporphyrin selectivity. The butyloxy derivative 2 represents a good example of a compromise between these opposite effects, where the short alkyl chain is able to increase the sensitivity and response time behaviour of the TSMR sensor, without significant loss of the selectivity properties.

Graphical abstract: Sensitivity-selectivity balance in mass sensors: the case of metalloporphyrins

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Article information

DOI
https://doi.org/10.1039/B313250A
Article type
Paper
Submitted
21 Oct 2003
Accepted
06 Feb 2004
First published
04 Mar 2004

J. Mater. Chem., 2004,14, 1281-1287

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Sensitivity-selectivity balance in mass sensors: the case of metalloporphyrins

C. Di Natale, R. Paolesse, A. Macagnano, S. Nardis, E. Martinelli, E. Dalcanale, M. Costa and A. D'Amico, J. Mater. Chem., 2004, 14, 1281 DOI: 10.1039/B313250A

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