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

H. Shinohara, A. Nakahara, Shuichi Shoji, Jun 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
Event6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2011 - Kaohsiung
Duration: 2011 Feb 202011 Feb 23

Other

Other6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2011
CityKaohsiung
Period11/2/2011/2/23

Fingerprint

electrophoresis
albumins
serums
fine structure
high speed
photoelectron spectroscopy
carboxyl group
adhesion
x rays
benzene
rings

Keywords

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

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Shinohara, H., Nakahara, A., Shoji, S., Mizuno, J., Takahashi, Y., Kitagawa, F., ... 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] https://doi.org/10.1109/NEMS.2011.6017588

NEXAFS and XPS studies of VUV/O3 treated aromatic polyurea for high-speed electrophoresis microchips. / Shinohara, H.; Nakahara, A.; Shoji, Shuichi; Mizuno, Jun; Takahashi, Y.; Kitagawa, F.; Otsuka, K.; Ohara, O.

NEMS 2011 - 6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems. 2011. p. 1267-1271 6017588.

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

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., 6017588, pp. 1267-1271, 6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2011, Kaohsiung, 11/2/20. https://doi.org/10.1109/NEMS.2011.6017588
Shinohara H, Nakahara A, Shoji S, Mizuno J, Takahashi Y, Kitagawa F et al. 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. 2011. p. 1267-1271. 6017588 https://doi.org/10.1109/NEMS.2011.6017588
Shinohara, H. ; Nakahara, A. ; Shoji, Shuichi ; Mizuno, Jun ; Takahashi, Y. ; Kitagawa, F. ; Otsuka, K. ; Ohara, O. / NEXAFS and XPS studies of VUV/O3 treated aromatic polyurea for high-speed electrophoresis microchips. NEMS 2011 - 6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems. 2011. pp. 1267-1271
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