MODIFICATION OF CARBON NANOWALLS USING LOW PRESSURE PLASMA TO ENHANCE THE FIBROBLAST ATTACHMENT
ROMANIAN JOURNAL OF PHYSICS(2019)
Abstract
Layers of carbon nanowalls (CNW) were exposed to cold plasma to improve the attachment of fibroblast cells on surface. Plasma was generated at low pressure by a radio-frequency (RF) parallel-plate discharge in Ar/O-2 mixture. 10 min of exposure allowed the insertion of oxygen-containing groups and considerable enhancement in surface hydrophilicity while the surface morphology was not significantly changed. The cells were cultivated on CNW samples and the analyses were performed after 24 h culture. Significant differences in density and morphology of cell attached on tested surfaces were observed. The number of viable cells increased after plasma treatment.
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Key words
vertically oriented graphene,carbon nanowalls,plasma functionalization,nanostructures,in vitro assay
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