Evaluation of protein adsorption to diamond-like carbon (DLC) and fluorine-doped DLC films using the quartz crystal microbalance method

被引:12
|
作者
Ishige, Haruka [1 ]
Akaike, Shun [1 ]
Hayakawa, Tohru [2 ]
Hiratsuka, Masanori [3 ]
Nakamura, Yoshiki [1 ]
机构
[1] Tsurumi Univ, Dept Orthodont, Sch Dent Med, Tsurumi Ku, 2-1-3 Tsurumi, Yokohama, Kanagawa 2308501, Japan
[2] Tsurumi Univ, Dept Dent Engn, Sch Dent Med, Tsurumi Ku, 2-1-3 Tsurumi, Yokohama, Kanagawa 2308501, Japan
[3] Nanotec Corp, 572-61 Toyofuta, Kashiwa, Chiba 2770872, Japan
基金
日本学术振兴会;
关键词
Diamond-like carbon; Albumin adsorption; Quartz crystal microbalance; Contact angle; Surface free energy; STATIC FRICTION; RESISTANCE; REDUCTION; ROUGHNESS; SURFACES; COATINGS; TITANIUM; DEBRIS; ENERGY;
D O I
10.4012/dmj.2018-060
中图分类号
R78 [口腔科学];
学科分类号
1003 ;
摘要
The aim of the present study was to evaluate albumin adsorption to stainless steel (SUS), diamond-like carbon (DLC) and fluorine-doped DLC (F-DLC) films using the quartz crystal microbalance (QCM) method. Each sensor was characterized using atomic force microscopy, surface roughness and surface wettability measurements and surface free energy calculations. Adsorbed amounts of bovine serum albumin on DLC and F-DLC were significantly lower than that on SUS (p<0.05). The apparent first-order reaction rate, k(obs), of F-DLC was significantly larger than those of SUS and DLC (p<0.05). Moreover, significantly lower total surface free energies of DLC and F-DLC influenced the albumin absorbed amounts and k(obs). Furthermore, a clear correlation was found between the albumin absorbed amounts and the hydrogen bond component of the total surface free energy. Thus, DLC or F-DLC coating is effective for preventing protein adsorption on orthodontic appliances.
引用
收藏
页码:424 / 429
页数:6
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