Hydrophilic surface formation on PDMS stamp by microwave plasma-induced grafting

Quanguo He; Zhengchun Liu; Nongyao He; Pengfeng Xiao; Zuhong Lu

doi:10.1117/12.444751

15 October 2001 Hydrophilic surface formation on PDMS stamp by microwave plasma-induced grafting

Quanguo He, Zhengchun Liu, Nongyao He, Pengfeng Xiao, Zuhong Lu

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.

Citation Download Citation

Quanguo He, Zhengchun Liu, Nongyao He, Pengfeng Xiao, and 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); https://doi.org/10.1117/12.444751

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available