Wettability behavior of nanotubular TiO2 intended for biomedical applications

Nanotubes have been subject of studies with regard to their ability to promote differentiation of several cells lines. Nanotubes have been used to increase the roughness of the implant surfaces and to improve bone tissue integration on dental implant. In this study TiO2 nanotube layer prepared by an...

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Detalhes bibliográficos
Autores: Rosa, Jorge Luiz, Nakazato, Roberto Zenhei [UNESP], Schneider, Sandra Giacomin, Alves Claro, Ana Paula Rosifini [UNESP], Alves Rezende, Maria Cristina Rosifini [UNESP]
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2014
País:Brasil
Recursos:Universidade Estadual Paulista (UNESP)
Repositorio:Repositório Institucional da UNESP
Idioma:inglés
OAI Identifier:oai:repositorio.unesp.br:11449/133326
Acesso em linha:http://www.archhealthinvestigation.com.br/index.php/ArcHI/article/view/658
http://hdl.handle.net/11449/133326
Access Level:acceso abierto
Palavra-chave:Titanium
Nanotubes
Wettability
Titanio
Nanotubos
Humectabilidad
Titânio
Molhabilidade
Descrição
Resumo:Nanotubes have been subject of studies with regard to their ability to promote differentiation of several cells lines. Nanotubes have been used to increase the roughness of the implant surfaces and to improve bone tissue integration on dental implant. In this study TiO2 nanotube layer prepared by anodic oxidation was evaluated. Nanotube formation was carried out using Glycerol-H2O DI(50-50 v/v)+NH4F(0,5 a 1,5% and 10-30V) for 1-3 hours at 37ºC. After nanostructure formation the topography of surface was observed using field-emission-scanning-microscope (FE-SEM). Contact angle was evaluated on the anodized and non-anodized surfaces using a water contact angle goniometer in sessile drop mode with 5 μL drops. In the case of nanotube formation and no treatment surface were presented 39,1° and 75,9°, respectively. The contact angle describing the wettability of the surface is enhanced, more hydrophilic, on the nanotube surfaces, which can be advantageous for enhancing protein adsorption and cell adhesion.