Microstructural and biological properties of nanocrystalline diamond coatings

R. J. Narayan, W. Wei, C. Jin, M. Andara, A. Agarwal, R. A. Gerhardt, Chun Che Shih, Chun Ming Shih, Shing Jong Lin, Yea Yang Su, R. Ramamurti, R. N. Singh

研究成果: 雜誌貢獻文章同行評審

57 引文 斯高帕斯(Scopus)


In this study, the microstructural, mechanical, adhesion, and hemocompatibility properties of nanocrystalline diamond coatings were examined. Microwave plasma chemical vapor deposition (MPCVD) was used to deposit nanocrystalline diamond coatings on silicon (100) substrates. The coating surface consisted of faceted nodules, which exhibited a relatively wide size distribution and an average size of 60 nm. High-resolution transmission electron microscopy demonstrated that these crystals were made up of 2-4 nm rectangular crystallites. Raman spectroscopy and electron diffraction revealed that the coating contained both crystalline and amorphous phases. The microscratch adhesion study demonstrated good adhesion between the coating and the underlying substrate. Scanning electron microscopy and energy dispersive X-ray analysis revealed no crystal, fibrin, protein, or platelet aggregation on the surface of the platelet rich plasma-exposed nanocrystalline diamond coating. This study suggests that nanocrystalline diamond is a promising coating for use in cardiovascular medical devices.
頁(從 - 到)1935-1940
期刊Diamond and Related Materials
發行號11-12 SPEC. ISS.
出版狀態已發佈 - 11月 2006

ASJC Scopus subject areas

  • 電子、光磁材料
  • 材料化學
  • 表面、塗料和薄膜
  • 表面和介面


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