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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Diamond-like carbon electrochemical corrosion resistance by addition of nanocrystalline diamond particles for biomedical applications

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Autor(es):
Ramos, B. C. [1] ; Saito, E. [2] ; Trava-Airoldi, V. J. [2] ; Lobo, A. O. [1] ; Marciano, F. R. [1]
Número total de Autores: 5
Afiliação do(s) autor(es):
[1] Univ Vale Paraiba Univap, Lab Biomed Nanotechnol NanoBio, BR-12244000 Sao Jose Dos Campos - Brazil
[2] Natl Inst Space Res INPE, Associated Lab Sensors & Mat, BR-12227010 Sao Jose Dos Campos, SP - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: SURFACE & COATINGS TECHNOLOGY; v. 259, n. C, p. 732-736, NOV 25 2014.
Citações Web of Science: 5
Resumo

Combining chemical and mechanical properties of diamond-like carbon (DLC) films opens the possibilities for its use in electrochemical applications. DLC electrochemical corrosion behavior is heavily dependent on deposition techniques and precursor gas. In this paper, nanocrystalline diamond (NCD) particles were incorporated into DLC films to study NCD-DLC electrochemical corrosion resistance in biomedical area. The films were grown over 316 L stainless steel using plasma enhanced chemical vapor deposition. NCD particles were incorporated into DLC during the deposition. Raman scattering spectroscopy and scanning electron microscopy characterized NCD-DLC structure and morphology. Electrochemical Impedance Spectroscopy and potentiodynamic method investigate NCD-DLC electrochemical corrosion behavior in simulated body fluid. The presence of NCD particles increases the DLC corrosion resistance. However, as the NCD concentration increases, the disorder also increases. Therefore, DLC films at lower concentration of NCD particles had the maximum corrosion resistance. From these results, NCD-DLC films can be considered a potential candidate for an anticorrosion material in biomedical applications. (C) 2014 Elsevier B.V. All rights reserved. (AU)

Processo FAPESP: 11/20345-7 - Estudo de filmes de carbono-tipo diamante contendo nanopartículas incorporadas para aplicações biomédicas
Beneficiário:Fernanda Roberta Marciano
Linha de fomento: Auxílio à Pesquisa - Apoio a Jovens Pesquisadores
Processo FAPESP: 11/17877-7 - Desenvolvimento de novos scaffolds poliméricos por eletrofiação com incorporação de nanotubos alinhados e nanohidroxiapatita para regeneração óssea
Beneficiário:Anderson de Oliveira Lobo
Linha de fomento: Auxílio à Pesquisa - Apoio a Jovens Pesquisadores