Long-term stability of plasma oxidized PDMS surfaces

Author

Kim, B. ; Peterson, E.T.K. ; Papautsky, I.

Author_Institution

Dept. of Electr. & Comput. Eng. & Comput. Sci., Cincinnati Univ., OH, USA

Volume

2

fYear

2004

fDate

1-5 Sept. 2004

Firstpage

5013

Lastpage

5016

Abstract

The hydrophilicity of untreated polydimethylsiloxane (PDMS) surfaces is problematic in applications where adhesion of proteins and cells is desirable. In this work, we investigated the effects of variables involved with plasma surface oxidation including time, power, monomer extraction, and storage conditions over 45 days. In order to maintain a hydrophilic surface for the longest time, the storage condition was the most influential factor above all other variables. Investigated changes in plasma treatment time, and power had less profound effects. Furthermore, only marginal differences in extracted and non-extracted PDMS were observed.

Keywords

biomedical materials; cellular biophysics; molecular biophysics; oxidation; plasma materials processing; polymers; proteins; wetting; cell adhesion; hydrophilicity; long-term stability; monomer extraction; plasma oxidized polydimethylsiloxane surfaces; plasma surface oxidation; protein adhesion; storage conditions; Adhesives; Chemicals; Microfluidics; Optical device fabrication; Plasma applications; Plasma chemistry; Plasma devices; Plasma properties; Plasma stability; Surface treatment; PDMS; Polydimethylsiloxane; contact angle; hydrophilicity; hydrophobicity; oxygen plasma;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2004. IEMBS '04. 26th Annual International Conference of the IEEE

Conference_Location

San Francisco, CA

Print_ISBN

0-7803-8439-3

Type

conf

DOI

10.1109/IEMBS.2004.1404385

Filename

1404385