XPS and NEXAFS studies of VUV/O3-treated aromatic polyurea and its application to microchip electrophoresis

H. Shinohara*, A. Nakahara, F. Kitagawa, Y. Takahashi, K. Otsuka, S. Shoji, O. Ohara, J. Mizuno

*この研究の対応する著者

研究成果: Article査読

8 被引用数 (Scopus)

抄録

In this study, the authors performed X-ray photoelectron spectroscopy (XPS) and near-edge X-ray absorption fine structure (NEXAFS) studies of vacuum ultraviolet (VUV)/O3-treated aromatic polyurea films to investigate their treatment effects. XPS and NEXAFS spectra indicate that the benzene ring was cleaved after treatment and that carboxyl, hydroxyl, ketone and aldehyde groups were formed at the cleaved sites. The VUV/O3-treated polyurea film was applied to a polymethylmethacrylate (PMMA) microchip for microchip electrophoresis (MCE) of bovine serum albumin (BSA). Fast electro-osmotic mobility of 4.6×10-4cm2/V/s as well as reduction of the BSA adhesion was achieved. This functional surface is useful for high-speed MCE analysis.

本文言語English
ページ(範囲)136-142
ページ数7
ジャーナルIET Nanobiotechnology
5
4
DOI
出版ステータスPublished - 2011 12月
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • バイオテクノロジー
  • 電子工学および電気工学

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