NEXAFS and XPS studies of VUV/O3 treated aromatic polyurea for high-speed electrophoresis microchips

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This research studies on VUV/O3-treated aromatic polyurea film from near-edge X-ray absorption fine structure (NEXAFS) and X-ray photoelectron spectroscopy (XPS) spectra. These spectra indicate that the benzene ring was cleaved after the treatment, and carboxyl and hydroxyl groups were formed at the cleaved sites. The VUV/O3-treated polyurea was applied to polymethylmethacrylate (PMMA) microchip for microchip electrophoresis (MCE) of bovine serum albumin (BSA). Fast electroosmotic mobility of 4.6×10 4 cm2V-1s-1 was realized as well as reduction of the BSA adhesion. This functional surface is useful for high speed MCE analysis.

Original languageEnglish
Title of host publicationNEMS 2011 - 6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems
Pages1267-1271
Number of pages5
DOIs
Publication statusPublished - 2011 Oct 4
Event6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2011 - Kaohsiung, Taiwan, Province of China
Duration: 2011 Feb 202011 Feb 23

Publication series

NameNEMS 2011 - 6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems

Conference

Conference6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2011
CountryTaiwan, Province of China
CityKaohsiung
Period11/2/2011/2/23

Keywords

  • X-ray photoelectron spectroscopy
  • microchip electrophoresis
  • near-edge X-ray absorption fine structure
  • polyurea
  • vacuum ultraviolet

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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    Shinohara, H., Nakahara, A., Shoji, S., Mizuno, J., Takahashi, Y., Kitagawa, F., Otsuka, K., & Ohara, O. (2011). NEXAFS and XPS studies of VUV/O3 treated aromatic polyurea for high-speed electrophoresis microchips. In NEMS 2011 - 6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems (pp. 1267-1271). [6017588] (NEMS 2011 - 6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems). https://doi.org/10.1109/NEMS.2011.6017588