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Cell Viability and Adhesion on as Grown Vertically Aligned Carbon Nanotubes√

Published online by Cambridge University Press:  01 February 2011

Anderson O. Lobo ,
Erica F. Antunes ,
Mariana B. S. Palma ,
Cristina Pacheco-Soares ,
Vladimir J. Trava-Airoldi  and
Evaldo J. Corat
Anderson O. Lobo
Affiliation:
Instituto Nacional de Pesquisas Espaciais, Laboratario Associado de Sensores e Materiais, Av. dos Astronautas, 1758, São José dos Campos, N/A, Brazil, 05512 3945-6571, 05512 3945-6717
Erica F. Antunes
Affiliation:
ericafa@las.inpe.br, Instituto Nacional de Pesquisas Espaciais, Av. dos Astronautas, 1758, São José dos Campos, N/A, Brazil
Mariana B. S. Palma
Affiliation:
mariana @las.inpe.br, Universidade do Vale do Paraíba, São José dos Campos, N/A, Brazil
Cristina Pacheco-Soares
Affiliation:
cpsoares@univap.br, Universidade do Vale do Paraíba, São José dos Campos, N/A, Brazil
Vladimir J. Trava-Airoldi
Affiliation:
vladimir@las.inpe.br, Instituto Nacional de Pesquisas Espaciais, Av. dos Astronautas, 1758, São José dos Campos, N/A, Brazil
Evaldo J. Corat
Affiliation:
corat@las.inpe.br, Instituto Nacional de Pesquisas Espaciais, Av. dos Astronautas, 1758, São José dos Campos, N/A, Brazil
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Abstract

This work studies cell viability and cell adhesion on as grown dense films of vertically aligned carbon nanotubes (MWCNT). The MWCNTs were produced by a microwave plasma chemical vapor deposition (2,45GHz) on silicon (Si) and titanium (Ti) surfaces, using a nickel and iron catalyst, respectively. The citotoxicity tests (MTT assay and cellular adhesion) were evaluated by various incubations times with Fibroblast L929 mouse cells. The results show very high cell viability and many layers of cells adhered on the surface formed by the nanotubes tips at films grown on Si surfaces. The MWCNT grown on Ti surfaces presented lower cell viability and a reduced number of cells on the surface formed by the nanotubes tips. The different behavior is most probably related to excess iron contamination present in the case of titanium substrate, while nickel catalyst is probably enclosed by the nanotubes.

Keywords

biomaterialnanostructurechemical vapor deposition (CVD) (deposition)
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 950: Symposium D – Biosurfaces and Biointerfaces , 2006 , 0950-D04-16
Copyright
Copyright © Materials Research Society 2007

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