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Cell adhesion and proliferation onto chitosan-based membranes treated by plasma...
Luna, Sandra M.; Silva, S. S.; Gomes, Manuela E.; Mano, J. F.; Reis, R. L.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...
Plasma surface modification of chitosan membranes : characterization and prelim...
Silva, S. S.; Luna, Sandra M.; Gomes, Manuela E.; Benesch, Johan; Pashkuleva, I.; Mano, J. F.; Reis, R. L.Surface modification of biomaterials is a way to tailor cell responses whilst retaining the bulk properties. In this work, chitosan membranes were prepared by solvent casting and treated with nitrogen or argon plasma at 20Wfor 10–40 min. AFM indicated an increase in the surface roughness as a result of the ongoing etching process. XPS and contact angle measurements showed different surface elemental composition...
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