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全氟和烷基膦酸自组装单分子层对Ti-DLC涂层摩擦学和抗菌性能的影响

Impact of Perfluoro and Alkylphosphonic Self-Assembled Monolayers on Tribological and Antimicrobial Properties of Ti-DLC Coatings.

作者信息

Cichomski Michal, Prowizor Milena, Borkowska Ewelina, Piwoński Ireneusz, Jędrzejczak Anna, Dudek Mariusz, Batory Damian, Wrońska Natalia, Lisowska Katarzyna

机构信息

Department of Materials Technology and Chemistry, Faculty of Chemistry, University of Lodz, Pomorska 163, 90-236 Lodz, Poland.

Institute of Materials Science and Engineering, Lodz University of Technology, Stefanowskiego St 1/15, 90-924 Lodz, Poland.

出版信息

Materials (Basel). 2019 Jul 25;12(15):2365. doi: 10.3390/ma12152365.

DOI:10.3390/ma12152365
PMID:31349579
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6696178/
Abstract

The diamond-like carbon (DLC) coatings containing 1.6%, 5.3% and 9.4 at.% of Ti deposited by the radio frequency plasma enhanced chemical vapor deposition (RF PECVD) method on the silicon substrate were modified by -decylphosphonic acid (DP) and 1H, 1H, 2H and 2H-perfluorodecylphosphonic acid (PFDP). The presence of perfluoro and alkylphosphonic self-assembled monolayers prepared by the liquid phase deposition (LPD) technique was confirmed by Fourier transform infrared spectroscopy (FTIR). It was shown that DP and PFDP monolayers on the surface of titanium incorporated diamond-like carbon (Ti-DLC) coatings had a huge influence on their wettability, friction properties, stability under phosphate- and tris-buffered saline solutions and on antimicrobial activity. It was also found that the dispersive component of surface free energy (SFE) had a significant influence on the value of the friction coefficient and the percentage value of the growth inhibition of bacteria. The dispersive component of SFE caused a reduction in the growth of bacteria and the friction coefficient in mili- and nano-newton load range. Additionally, both self-assembled monolayers prepared on Ti-DLC coatings strongly reduced bacterial activity by up to 95% compared to the control sample.

摘要

通过射频等离子体增强化学气相沉积（RF PECVD）方法在硅衬底上沉积的含1.6%、5.3%和9.4原子百分比钛的类金刚石碳（DLC）涂层，用癸基膦酸（DP）和1H，1H，2H，2H-全氟癸基膦酸（PFDP）进行了改性。通过傅里叶变换红外光谱（FTIR）证实了通过液相沉积（LPD）技术制备的全氟和烷基膦酸自组装单分子层的存在。结果表明，钛掺杂类金刚石碳（Ti-DLC）涂层表面的DP和PFDP单分子层对其润湿性、摩擦性能、在磷酸盐和三羟甲基氨基甲烷缓冲盐溶液中的稳定性以及抗菌活性有巨大影响。还发现表面自由能（SFE）的分散成分对摩擦系数值和细菌生长抑制百分比有显著影响。SFE的分散成分在毫牛顿和纳牛顿负载范围内导致细菌生长和摩擦系数降低。此外，与对照样品相比，在Ti-DLC涂层上制备的两种自组装单分子层都能将细菌活性强烈降低多达95%。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/818a/6696178/caf7a5005c8e/materials-12-02365-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/818a/6696178/b4842c9372e1/materials-12-02365-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/818a/6696178/24d6e4814f7f/materials-12-02365-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/818a/6696178/1c9b246fab97/materials-12-02365-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/818a/6696178/21da07694963/materials-12-02365-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/818a/6696178/dd8ca2094333/materials-12-02365-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/818a/6696178/caf7a5005c8e/materials-12-02365-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/818a/6696178/b4842c9372e1/materials-12-02365-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/818a/6696178/24d6e4814f7f/materials-12-02365-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/818a/6696178/1c9b246fab97/materials-12-02365-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/818a/6696178/21da07694963/materials-12-02365-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/818a/6696178/dd8ca2094333/materials-12-02365-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/818a/6696178/caf7a5005c8e/materials-12-02365-g006.jpg

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