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

doi:10.1109/NEMS.2011.6017588

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

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference 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 language	English
Title of host publication	NEMS 2011 - 6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems
Pages	1267-1271
Number of pages	5
DOIs	https://doi.org/10.1109/NEMS.2011.6017588
Publication status	Published - 2011
Event	6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2011 - Kaohsiung, Taiwan, Province of China Duration: 2011 Feb 20 → 2011 Feb 23

Publication series

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

Conference

Conference	6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2011
Country/Territory	Taiwan, Province of China
City	Kaohsiung
Period	11/2/20 → 11/2/23

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

Access to Document

10.1109/NEMS.2011.6017588

Cite this

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

NEXAFS and XPS studies of VUV/O₃ treated aromatic polyurea for high-speed electrophoresis microchips. / Shinohara, H.; Nakahara, A.; Shoji, S. et al.
NEMS 2011 - 6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems. 2011. p. 1267-1271 6017588 (NEMS 2011 - 6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems).

Research output: Chapter in Book/Report/Conference proceeding › Conference 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, NEMS 2011 - 6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, pp. 1267-1271, 6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2011, Kaohsiung, Taiwan, Province of China, 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. (NEMS 2011 - 6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems). doi: 10.1109/NEMS.2011.6017588

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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.",

keywords = "X-ray photoelectron spectroscopy, microchip electrophoresis, near-edge X-ray absorption fine structure, polyurea, vacuum ultraviolet",

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

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AU - Shoji, S.

AU - Mizuno, J.

AU - Takahashi, Y.

AU - Kitagawa, F.

AU - Otsuka, K.

AU - Ohara, O.

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AB - 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.

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