Novel sensing materials for breath analysis devices

S Lo Schiavo; L Livoti; A Calisto; A Bramanti; N Donato; M Latino; G Neri

doi:10.1109/IEMBS.2010.5627198

Novel sensing materials for breath analysis devices

Annu Int Conf IEEE Eng Med Biol Soc. 2010:2010:670-3. doi: 10.1109/IEMBS.2010.5627198.

Authors

S Lo Schiavo¹, L Livoti, A Calisto, A Bramanti, N Donato, M Latino, G Neri

Affiliation

¹ Dept. of Inorganic Chemistry, Analytical Chemistry and Physical Chemistry, University of Messina, Salita Sperone 31, Vil. S. Agata, , I-98166, Italy.

PMID: 21096551
DOI: 10.1109/IEMBS.2010.5627198

Abstract

The development of new transition metal complexes (TMCs) sensing materials, based on di-rhodium (II,II) complexes with a lantern structure, is investigated. Specifically, in this work is reported a study carried out with the Rh2(form)4 complex having the formamidinate (form = N.N-p-tolylformamidinate anion) bridging ligand in the equatorial positions. Thick films of the complex have been deposited on interdigitated alumina substrate and their electrical characteristics have been evaluated. Rh2(form)4 behaves as a p-type semiconductor, showing a large decrease in forward and reverse current in presence of ammonia vapors in air. The preliminary results reported promise a practical application of the developed devices in the breath analysis for clinical diagnostics.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Ammonia / analysis*
Ammonia / chemistry*
Biocompatible Materials / chemistry*
Biosensing Techniques / instrumentation*
Breath Tests / instrumentation*
Conductometry / instrumentation*
Equipment Design
Equipment Failure Analysis
Rhodium / chemistry*
Semiconductors

Substances

Biocompatible Materials
Ammonia
Rhodium