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    Cell adhesion and growth on surfaces modified by plasma and ion implantation

    Year: 2014

    Journal: JOURNAL OF APPLIED PHYSICS, Vol. 115, p -, 20150722

    Authors: Araujo, W. W. R.; Teixeira, F. S.; da Silva, G. N.; Salvadori, D. M. F.; Salvadori, M. C.

    Organizations: Univ Sao Paulo, Inst Phys, BR-05315970 Sao Paulo, Brazil; Univ Fed Ouro Preto, Sch Pharm, Clin Analyses Dept, UFOP, Ouro Preto, MG, Brazil; Sao Paulo State Univ, UNESP, Fac Med, Dept Pathol, Sao Paulo, Brazil

    In this study, we show and discuss the results of the interaction of living CHO (Chinese Hamster Ovary) cells, in terms of adhesion and growth on glass, SU-8 (epoxi photoresist), PDMS (polydimethylsiloxane), and DLC (hydrogen free diamond-like carbon) surfaces. Glass, SU-8, and DLC but not PDMS showed to be good surfaces for cell growth. DLC surfaces were treated by oxygen plasma (DLC-O) and sulfur hexafluoride plasma (DLC-F). After 24 h of cell culture, the number of cells on DLC-O was higher than on DLC-F surface. SU-8 with silver implanted, creating nanoparticles 12 nm below the surface, increased significantly the number of cells per unit area. (C) 2014 AIP Publishing LLC.