Use este identificador para citar ou linkar para este item: http://www.repositorio.ufc.br/handle/riufc/2435
Título: Study of the electrical conductivity and piezoelectricity in iron doped collagen films
Autor(es): Sousa Neto, V. O
Silva, C. C.
Almeida, Ana Fabíola Leite
Figueiró, S. D.
Góes, J. C.
Paiva, J. A. C.
Magalhães, C. E. C.
Sombra, Antônio Sérgio B.
Palavras-chave: Biofilme
Colágeno
Data do documento: 2002
Editor: Solid State Sciences
Citação: SOUSA NETO, V. O. ; SILVA, C. C . ; ALMEIDA, A. F. L. ; FIGUEIRÓ, S. D. ; GÓES, J. C. ; PAIVA, J. A. C. ; MAGALHÃES, C. E. C. ; SOMBRA, A. S. B. (2002)
Abstract: In this paper we did a study of collagen membranes prepared with iron as an impurity. In this study one try to understand the function of the iron in the collagen structure in view of increasing the value of piezoelectric strain tensor element d14. We prepared different samples with different iron doping levels. One has samples doped by immersion in solutions of FeCl2 at 0.1 M and 0.2 M (ColFeCl01 and ColFeCl02) and iron doped directly in solution with Fe2O3 at 5% and 15% (Col7Fe5 and Col7Fe15). We did a study of the Mössbauer spectroscopy, DC electrical conductivity and the piezoelectric strain tensor element d14, the elastic constant s55, and the dielectric function ε11 of the samples. The loss factor Q−1 of the samples was also measured using the admittance resonance method. The role played by the iron in the different situations and the consequences for the transport properties is discussed.
Descrição: SOUSA NETO, V. O. et al. Study of the electrical conductivity and piezoelectricity in iron doped collagen films. Solid State Sciences, v. 4, n. 1, p. 43-51, 2002.
URI: http://www.repositorio.ufc.br/handle/riufc/2435
ISSN: 1293-2558
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