Antibacterial and tribological behavior of self-assembled monolayer on optical lens

J. H. Horng; Y. R. Jeng; C. C. Wei; Y. T. Tasi

doi:10.1117/12.865719

6 October 2010 Antibacterial and tribological behavior of self-assembled monolayer on optical lens

J. H. Horng, Y. R. Jeng, C. C. Wei, Y. T. Tasi

Proceedings Volume 7655, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies; 76552Y (2010) https://doi.org/10.1117/12.865719
Event: 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies, 2010, Dalian, China

Abstract

This paper studies the effects of the antibacterial and anti-adhesion properties of self-assembled monolayers (SAMs) on optical parts. Therefore, the experiments in this study prepared several kinds of SAMs, including alkyl and biphenyl spacer chains with different surface terminal groups (-CH₃,-COOH) and head groups (-SH). This study reports the growth of eight self-assembled monolayers on optical parts: OTS, ODS, OTS with antibacterial solution, ODS with antibacterial solution, and pure antibacterial solution, with bio-compatibility. Experimental results regarding the contact angle of five self-assembled monolayers show that ODS with antibacterial illustrated the maximum contact angle 103° 12 hours after reaction. The solutions of OTS, ODS with antibacterial, OTS with antibacterial, and pure anti-bacterial showed contact angles of 102°, 99°, 101°, and 59° respectively. These results indicate that the antibacterial solution has negligible effects on anti-adhesion property of optical lenses. The results of digital optical microscope system analysis show that in the antibacterial experiment of eight kinds of selfassembled monolayers, the OTS_anti50% effect cultured for 24 hours achieved the best results, with a growth rate of 12%. The descending order of antibacterial effect is antibacterial 10%>ODS>OTS> antibacterial 50%>ODS_anti50%>OTS_anti10%>ODS_anti10%. In summary, the surface treatment of optical lenses involving OTS_anti 50% is the most capable of effectively increasing antifouling and antibacterial functions.

Citation Download Citation

J. H. Horng, Y. R. Jeng, C. C. Wei, and Y. T. Tasi "Antibacterial and tribological behavior of self-assembled monolayer on optical lens", Proc. SPIE 7655, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 76552Y (6 October 2010); https://doi.org/10.1117/12.865719

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KEYWORDS

Self-assembled monolayers

Contact lenses

Molecules

Silica

Atomic force microscopy

Glasses

Temperature metrology

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