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Development of new ceramic doped ionoconducting membranes for biomedical applications.

Published online by Cambridge University Press:  11 February 2011

Paola Romagnoli ,
Maria Luisa Di Vona ,
Enrico Traversa ,
Livio Narici ,
Walter G. Sannita ,
Simone Carozzo ,
Marcella Trombetta  and
Silvia Licoccia
Paola Romagnoli
Affiliation:
Dipartimento di Scienze e Tecnologie Chimiche, and Dipartimento di Fisica, Via della Ricerca Scientifica 1, 00133 Rome, (Italy)
Maria Luisa Di Vona
Affiliation:
Dipartimento di Scienze e Tecnologie Chimiche, and Dipartimento di Fisica, Via della Ricerca Scientifica 1, 00133 Rome, (Italy)
Enrico Traversa
Affiliation:
Dipartimento di Scienze e Tecnologie Chimiche, and Dipartimento di Fisica, Via della Ricerca Scientifica 1, 00133 Rome, (Italy)
Livio Narici
Affiliation:
Università di Roma “Tor Vergata”, Via della Ricerca Scientifica 1, 00133 Rome, (Italy)
Walter G. Sannita
Affiliation:
Centro Farmaci Neuroattivi-Dipartimento di Scienze Motorie, Universita' di Genova, Largo Benzi 10, 16132 Genova, Italy and Department of Psychiatry, State University of New York, Stony Brook, NY, 1764–8101, USA.
Simone Carozzo
Affiliation:
Centro Farmaci Neuroattivi-Dipartimento di Scienze Motorie, Universita' di Genova, Largo Benzi 10, 16132 Genova, Italy and Department of Psychiatry, State University of New York, Stony Brook, NY, 1764–8101, USA.
Marcella Trombetta
Affiliation:
Interdisciplinary Center for Biomedical Research (CIR), Laboratory of Biomaterials, Università “Campus Bio-Medico”, via E. Longoni 83, 00155 Rome, (Italy)
Silvia Licoccia
Affiliation:
Dipartimento di Scienze e Tecnologie Chimiche, and Dipartimento di Fisica, Via della Ricerca Scientifica 1, 00133 Rome, (Italy)
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Abstract

New ionoconducting composite membranes to be used as an interface between the skin and the actual electrical instrumentation used to produce an electroencephalogram (EEG) have been developed. The gels are based on lithium salts and PMMA (polymethyl methacrylate) and have been doped with nanometric titanium oxide. The samples have been electrochemically characterized by means of impedance spectroscopy and their structure studied by ATR-FTIR and MAS NMR. Spectroscopic studies indicate interactions between the polymer and oxide dopant. The polymeric electrolytes allowed the registration of good electrophysiological cortical signals either spontaneous or stimulus-related.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 756: Symposia EE/FF – Solid-State Ionics – Materials for Fuel Cells and Fuel Processors , 2002 , EE6.1
Copyright
Copyright © Materials Research Society 2003

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References

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