15 October 2001 Hydrophilic surface formation on PDMS stamp by microwave plasma-induced grafting
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Proceedings Volume 4601, Micromachining and Microfabrication Process Technology and Devices; (2001) https://doi.org/10.1117/12.444751
Event: International Symposium on Optoelectonics and Microelectronics, 2001, Nanjing, China
Abstract
In this paper, a method of microwave plasma-induced grafting to enhance PDMS surface hydrophilicity was developed and its durable hydrophilicity resulted from an oriented grafting of acrylonitrile (AN) was described. In the investigations, the microwave plasma treatment parameters and post-wet chemical grafting were optimized, and their effects on hydrophilicity were also investigated. Contact angle measurements were used to assess the hydrophilicity of the various modified PDMS surfaces. Moreover, attenuated total reflectance Fourier transform infrared (ATR-FT-IR) spectroscopic characterization was used to evaluate PDMS samples variation. It has been found that the cyano groups bonded onto PDMS showed the best hydrophilicity among the modified surfaces, which showed a better affinity to acetonitrile. Therefore the hydrophilic surface was formed on PDMS stamps and the results implied promising applications of DNA microarray.
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Quanguo He, Quanguo He, Zhengchun Liu, Zhengchun Liu, Nongyao He, Nongyao He, Pengfeng Xiao, Pengfeng Xiao, Zuhong Lu, Zuhong Lu, "Hydrophilic surface formation on PDMS stamp by microwave plasma-induced grafting", Proc. SPIE 4601, Micromachining and Microfabrication Process Technology and Devices, (15 October 2001); doi: 10.1117/12.444751; https://doi.org/10.1117/12.444751
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