Development of new ceramic doped ionoconducting membranes for biomedical applications.


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.

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  1. 1.

    “Orthopedic Composites”, Stuart M. Lee, Editor. International Encyclopedia of Composites. VCH Publishers, New York, 1991. Vol 4, pp. 74–87

    Google Scholar 

  2. 2.

    S. Ramakrishna, J. Mayer, E. Wintermantel, K. W. Leong, Comp. Science and Tech. 61, 1189 (2001).

    CAS  Article  Google Scholar 

  3. 3.

    P. Romagnoli, M.L. Di Vona, L. Narici, W.G. Sannita, E. Traversa and S. Licoccia, J. Electrochem. Soc., 148(12), J63 (2001).

    CAS  Article  Google Scholar 

  4. 4.

    S. Rajendran, T. Uma, Materials Letters 45, 191 (2000).

    CAS  Article  Google Scholar 

  5. 5.

    M.C. Carotta, M.A. Butturi, G. Martinelli, M.L. Di Vona, S. Licoccia, E. Traversa, Electron Technology 33, 113 (2000).

    CAS  Google Scholar 

  6. 6.

    B. Kumar, J.D. Schaffer, N Munichandraiah, L.G. Scanlon J. Power Sources 47, 63 (1994).

    CAS  Article  Google Scholar 

  7. 7.

    G.B. Appetecchi, P. Romagnoli, B. Scrosati, Electrochem. Comm. 3, 281 (2001).

    CAS  Article  Google Scholar 

  8. 8.

    B. Scrosati, F. Croce and L. Persi, J. Electrochem. Soc., 147 (5), J1718 (2001).

    Article  Google Scholar 

  9. 9.

    G. Martra, Applied Catal., 200, 275 (2000).

    CAS  Article  Google Scholar 

  10. 10.

    J. Straka, P. Schmidt, J. Dybal, B. Schneider and J. Spevacek Polymer 36, 1147 (1995).

    CAS  Article  Google Scholar 

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Correspondence to Paola Romagnoli.

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Romagnoli, P., Vona, M.L.D., Traversa, E. et al. Development of new ceramic doped ionoconducting membranes for biomedical applications.. MRS Online Proceedings Library 756, 61 (2002).

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