title: Novel sensing materials for breath analysis devices.
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.
authors.affiliation: Dept. of Inorganic Chemistry, Analytical Chemistry and Physical Chemistry, University of Messina, Salita Sperone 31, Vil. S. Agata, , I-98166, Italy.
authors.forename: S
authors.initials: S
authors.lastname: Lo Schiavo
authors.forename: L
authors.initials: L
authors.lastname: Livoti
authors.forename: A
authors.initials: A
authors.lastname: Calisto
authors.forename: A
authors.initials: A
authors.lastname: Bramanti
authors.forename: N
authors.initials: N
authors.lastname: Donato
authors.forename: M
authors.initials: M
authors.lastname: Latino
authors.forename: G
authors.initials: G
authors.lastname: Neri
mesh_terms: D000641:Ammonia / Q000032:analysis* / Q000737:chemistry*; D001672:Biocompatible Materials / Q000737:chemistry*; D015374:Biosensing Techniques / Q000295:instrumentation*; D001944:Breath Tests / Q000295:instrumentation*; D003217:Conductometry / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D012238:Rhodium / Q000737:chemistry*; D012666:Semiconductors
chemical_list: D001672:Biocompatible Materials; D000641:Ammonia; D012238:Rhodium