| Summary: | 碩士 === 國立臺北科技大學 === 機電整合研究所 === 102 === Diamond-like carbon(DLC) films have a lot of physical and chemical properties, like high hardness, electrical resistance, chemical inertness, especially ensure high biocompatibility. In this study, DLC and Ag-doped DLC(Ag-DLC) nanocoposite films were deposited on silicon substrate by R.F. unbalanced magnetron sputtering technique. It is shown that the DLC films had smooth surface and good chemical inertness. Ag-DLC nanocoposite films had different nano-silver sizes, higher hydrophobicity and surface roughness.
In biological experiments, thin films were conducted in cell culture and bacteria experiment. MG-63 cells were cultured on substrates of Si、Ti6Al4V、glass、DLC and Ag-doped DLC nanocoposite films. The vitro tests revealed that MG-63 cell attached on DLC films but Ag-doped DLC nanocoposite films not and cytotoxicity tests shown Ag-doped DLC nanocoposite films did not release toxicity. In anti-bacterial test, DLC films had little number of E. coli attached on surface. Ag-doped DLC nanocoposite films surface did not have any E. coli attached and killed E.coli in bacterial solution. It confirmed Ag-doped DLC nanocoposite films have good antibacterial properties.
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