Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/12985
Título: | Cell adhesion and proliferation onto chitosan-based membranes treated by plasma surface modification |
Autor(es): | Luna, Sandra M. Silva, Simone Santos Gomes, Manuela E. Mano, J. F. Reis, R. L. |
Palavras-chave: | Chitosan membrane Plasma treatment Cell behaviour Surface properties Biomaterial cell behavior |
Data: | Jul-2011 |
Editora: | SAGE |
Revista: | Journal of Biomaterials Applications |
Resumo(s): | Surface properties play a vita role in the functioning of a biomaterial. Cellular adherence and growth onto biomaterials can be enhanced in biomaterial modifications of their surface. In this work, the cell behaviour on chitosan membranes modified by argon and nitron-plasma treatments was investigated. Characterization of the membranes was performed using atomic force microscopy, contact angle measurements, and X-ray photoelectron spectroscopy. Cytotoxicity assessment and direct contact assay were carried out for untreated and treated chitosan membranes using L929 fibroblast-like cells. Cell morphology and cell viability were assessed to evaluate the cell attachment and proliferation. Changes in terms of roughness, surface chemistry, and hydrophilicity/hydrophobic balance of chitosan-modified membranes were observed. Regarding cell studies, the findings revealed that the extracts of all membranes do not induce cytotoxicity effects. Moreover, the in vitro assays evidenced an improvement of the L929 adhesion, and attachment when compared to untreated chitosan membranes. overall, the data obtained clearly demonstrated that plasma treatments constitute an effective way of improving the biocompatibility of chitosan membranes towards to their use in biomedical applications. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/12985 |
DOI: | 10.1177/0885328210362924 |
ISSN: | 0885-3282 |
Versão da editora: | http://jba.sagepub.com/content/26/1/101.full.pdf+html |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | 3B’s - Artigos em revistas/Papers in scientific journals |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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JBA362924.pdf | Documento principal | 493,06 kB | Adobe PDF | Ver/Abrir |