Wettability and antibacterial activity of modified diamond-like carbon films

被引：38

作者：

Marciano, F. R. ^{[1
,2
]}

Bonetti, L. F. ^{[3
]}

Da-Silva, N. S. ^{[4
]}

Corat, E. J. ^{[1
]}

Trava-Airoldi, V. J. ^{[1
]}

机构：

[1] Inst Nacl Pesquisas Espaciais, Lab Assoc Sensores & Mat LAS, BR-12227010 Sao Jose Dos Campos, SP, Brazil

[2] Ctr Aerosp Technol, ITA, BR-12228900 Sao Jose Dos Campos, SP, Brazil

[3] Clorovale Diamantes Ind & Comercio Ltd, BR-12229390 Sao Jose Dos Campos, SP, Brazil

[4] Univ Vale Paraiba Univap, IP&D, BR-12244000 Sao Jose Dos Campos, SP, Brazil

来源：

APPLIED SURFACE SCIENCE | 2009年 / 255卷 / 20期

基金：

巴西圣保罗研究基金会;

关键词：

Diamond-like carbon; Oxygen plasma treatment; Bactericidal activity; ION IMPLANTATION-DEPOSITION; AMORPHOUS-CARBON; PLASMA IMMERSION; SURFACE-PROPERTIES; DLC COATINGS; THIN-FILM; ADHESION; SUBSTRATE; ENERGY; O-2;

D O I：

10.1016/j.apsusc.2009.05.091

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Diamond-like carbon (DLC) films can be used in a numerous industrial applications, including biomedical coatings with bactericidal properties. It has been demonstrated that DLC surface can be modified with oxygen plasma treatment. The purpose of this paper is to study the wettability and bactericidal activity of oxygen plasma-treated DLC films produced by plasma enhanced chemical vapor deposition technique. The sp(3)/sp(2) ratio increased after the treatment due to the increase in the generation of the unstable carbon bonds caused by the energetic ions, especially O-H group. The treated DLC surface becomes superhydrophilic and rougher, although the roughness values are still lower. DLC antibacterial activity did not increased with plasma treatment. Therefore, oxygen plasma treatment can be used to make superhydrophilic DLC but not to increase its bactericidal properties. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：8377 / 8382

页数：6

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