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Biocompatible Silver-containing a-C:H and a-C coatings: AComparative Study
| 题名： | Biocompatible Silver-containing a-C:H and a-C coatings: AComparative Study |
| 作者： | Albella, Jose Maria;Anders, Andre;Zhang, Hanshen;Escobar Galindo, Ramon;Allen, Matthew;Endrino, Jose Luis; |
| 关键词： | 36; CARBON; CATHODES; COATINGS; DEPOSITION; GLOW DISCHARGES; HARDNESS; ION IMPLANTATION; METHANE; PLASMA; PLATES; SILVER; SPECTROSCOPY; TISSUE CULTURES; VIABILITY |
| 摘要： | Hydrogenated diamond-like-carbon (a-C:H) and hydrogen-free amorphous carbon (a-C) coatings are known to be biocompatible and have good chemical inertness. For this reason, both of these materials are strong candidates to be used as a matrix that embeds metallic elements with antimicrobial effect. In this comparative study, we have incorporated silver into diamond-like carbon (DLC) coatings by plasma based ion implantation and deposition (PBII&D) using methane (CH4) plasma and simultaneously depositing Ag from a pulsed cathodic arc source. In addition, we have grown amorphous carbon - silver composite coatings using a dual-cathode pulsed filtered cathodic-arc (FCA) source. The silver atomic content of the deposited samples was analyzed using glow discharge optical spectroscopy (GDOES). In both cases, the arc pulse frequency of the silver cathode was adjusted in order to obtain samples with approximately 5 at.%of Ag. Surface hardness of the deposited films was analyzed using the nanoindentation technique. Cell viability for both a-C:H/Ag and a-C:/Ag samples deposited on 24-well tissue culture plates has been evaluated. |
| 报告类型： | 科技报告 |
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