%0 Journal Article
%4 dpi.inpe.br/plutao/2012/11.28.17.44
%2 dpi.inpe.br/plutao/2012/11.28.17.44.18
%@doi 10.7446/jaesa.0403.12
%@issn 2236-577X
%F lattes: 3455204481678421 5 NunesPMSTRASSL:2012:StElBi
%T Thin film composites of nanocrystalline diamond particles and diamond-like carbon: structural, electrochemical and biological properties
%D 2012
%A Nunes, C. A.,
%A Ramos, B. C.,
%A Stein, M. F.,
%A Almeida, E. C.,
%A Silva, Newton Soares da,
%A Soares, C. P.,
%A Trava-Airoldi, Vladimir Jesus,
%A Lobo, A. O.,
%A Marciano, F. R.,
%@affiliation Laboratory of Biomedical Nanotechnology, Universidade do Vale do Paraíba (Univap), Av. Shishima Hifumi 2911, São José dos Campos, SP, Brazil
%@affiliation Laboratory of Biomedical Nanotechnology, Universidade do Vale do Paraíba (Univap), Av. Shishima Hifumi 2911, São José dos Campos, SP, Brazil
%@affiliation Laboratory of Biomedical Nanotechnology, Universidade do Vale do Paraíba (Univap), Av. Shishima Hifumi 2911, São José dos Campos, SP, Brazil
%@affiliation Departamento de Ciências Exatas e Tecnológicas (DCET), Universidade Estadual de Santa Cruz (UESC), Rodovia Ilheus- Itabuna, Km 16 (BA 415), Ilhéus, BA, Brazil
%@affiliation Laboratório de Dinâmica de Compartimentos Celulares, Universidade do Vale do Paraíba (Univap), Av. Shishima Hifumi 2911, São José dos Campos, SP, Brazil
%@affiliation Laboratório de Dinâmica de Compartimentos Celulares, Universidade do Vale do Paraíba (Univap), Av. Shishima Hifumi 2911, São José dos Campos, SP, Brazil
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Laboratory of Biomedical Nanotechnology, Universidade do Vale do Paraíba (Univap), Av. Shishima Hifumi 2911, São José dos Campos, SP, Brazil
%@affiliation Laboratory of Biomedical Nanotechnology, Universidade do Vale do Paraíba (Univap), Av. Shishima Hifumi 2911, São José dos Campos, SP, Brazil
%@electronicmailaddress
%@electronicmailaddress
%@electronicmailaddress
%@electronicmailaddress
%@electronicmailaddress
%@electronicmailaddress
%@electronicmailaddress vladimir@las.inpe.br
%B Journal of Aerospace Engineering, Sciences and Applications
%V 4
%P 131-138
%K diamond-like carbon, crystalline diamond nanoparticles, biomedical applications.
%X Diamond-like Carbon (DLC) films have been the focus of extensive research in recent years due to their potential application as surface coatings. In this paper, we report the main results obtained in our laboratories from the production and characterization of nanocrystalline diamond particles (NCD) incorporated in DLC films for biomedical applications. The films were growth on 316L stainless steel substrates from a dispersion of NCD nanoparticles in hexane using plasma enhanced chemical vapor deposition. Raman scattering spectroscopy was used to study the atomic arrangements of the film, and atomic force microscopy, the roughness of the film. The investigation of NCD-DLC electrochemical corrosion behavior was performed using potentiodynamic method. Cell viability was evaluated with L-929 mouse fibroblast cells using 2-(4,5-dimethyl-2-thiazolyl)-3,5-diphenyl-2H-tetrazolium bromide (MTT) in vitro assay. The NCD particles increased the structural diamond-like domains and surface roughness, which improved DLC and stainless steel electrochemical corrosion resistance and prevented aggressive ions from attacking metallic surfaces. Those NCD particles also increased the DLC cell viability, maximizing the potential use of NCD-DLC films in biomedical applications.
%@language en