Influence of bias voltage on diamond like carbon (DLC) film deposited on polyethylene terephthalate (PET) film surfaces using PECVD and its blood compatibility

被引：29
作者：
Pandiyaraj, K. Navaneetha [1 ]
Selvarajan, V. [1 ]
Heeg, J. [2 ]
Junge, F. [2 ]
Lampka, A. [2 ]
Barfels, T. [2 ]
Wienecke, M. [2 ]
Rhee, Young Ha [3 ]
Kim, Hyoung Woo [3 ]
机构：
[1] Bharathiar Univ, Dept Phys, Coimbatore 641046, Tamil Nadu, India
[2] Hsch Wismar, Inst Surface & Thin Film Technol, Wismar, Germany
[3] Chungnam Natl Univ, Coll Biosci & Biotechnol, Dept Microbiol, Taejon 305764, South Korea
来源：
DIAMOND AND RELATED MATERIALS | 2010年 / 19卷 / 7-9期
关键词：
DLC; Biasing; XPS; SEM; Raman; Blood compatibility; THIN-FILMS; COATINGS; ADHESION;
D O I：
10.1016/j.diamond.2010.03.016
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, diamond like carbon (DLC) films were coated on polyethylene terephthalate (PET) film substrate as a function of biasing voltage using plasma enhanced chemical vapour deposition. The surface morphology of the DLC films was analyzed by scanning electron microscopy and atomic force microscopy. The chemical state and structure of the films were analyzed by X-ray photoelectrons spectroscopy and Raman spectroscopy. The micro hardness of the DLC films was also studied. The surface energy of interfacial tension between the DLC and blood protein was investigated using contact angle measurements. In addition, the blood compatibility of the films was examined by in vitro tests. For a higher fraction of sp(3) content, maximum hardness and surface smoothness of the DLC films were obtained at an optimized biasing potential of -300 V. The in vitro results showed that the blood compatibility of the DLC coated PET film surfaces got enhanced significantly. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：1085 / 1092
页数：8
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