Hostname: page-component-7c8c6479df-r7xzm Total loading time: 0 Render date: 2024-03-19T04:02:14.930Z Has data issue: false hasContentIssue false

Plasma Interactions with Biological Molecules in Aqueous Solution

Published online by Cambridge University Press:  02 December 2013

Yuichi Setsuhara
Affiliation:
Joining and Welding Research Institute, Osaka University, Ibaraki, Osaka 567-0047, Japan
Atsushi Miyazaki
Affiliation:
Joining and Welding Research Institute, Osaka University, Ibaraki, Osaka 567-0047, Japan
Kosuke Takenaka
Affiliation:
Joining and Welding Research Institute, Osaka University, Ibaraki, Osaka 567-0047, Japan
Masaru Hori
Affiliation:
Plasma Nanotechnology Research Center, Nagoya University, Nagoya 464-8603, Japan
Get access

Abstract

Plasma interactions with L-alanine in aqueous solution have been examined as a basis of fundamental processes in plasma medicine. The plasma interactions with L-alanine in aqueous solution have been examined for investigations of chemical modifications induced by exposures with the atmospheric-pressure hollow-cathode He plasma to the surface of the aqueous solution, which contained L-alanine as a solute in pure water, via chemical bonding states analyses using x-ray photoelectron spectroscopy (XPS). Measurement of hydrogen ion exponent (pH level) of pure water during the atmospheric plasma exposure showed that the pH level decreased to be acidic, but the water temperature did not change. The C 1s XPS spectrum from the L-alanine after the plasma exposure to the aqueous solution showed the decomposition of the -COOH group and the formation of -C=O group.

Type
Articles
Copyright
Copyright © Materials Research Society 2013 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Stoffels, E., Kieft, I. E., and Sladek, R. E. J., J. Phys. D: Appl. Phys. 36, 2908 (2003).CrossRefGoogle Scholar
Fridman, G., Shereshevsky, A., Jost, M. M., Brooks, A. D., Fridman, A., Gutsol, A., Vasilets, V., and Friedman, G., Plasma Chem. Plasma Process. 27, 163 (2007).CrossRefGoogle Scholar
Setsuhara, Y., Cho, K., Shiratani, M., Sekine, M., and Hori, M., Thin Solid Films 518, 6492 (2009).CrossRefGoogle Scholar
Cho, K., Setsuhara, Y., Takenaka, K., Shiratani, M., Sekine, M., and Hori, M., Thin Solid Films 519, 6810 (2011).CrossRefGoogle Scholar
Setsuhara, Y., Cho, K., Takenaka, K., Shiratani, M., Sekine, M., and Hori, M, Thin Solid Films 519, 6721 (2011).CrossRefGoogle Scholar
Setsuhara, Y., Cho, K., Shiratani, M., Sekine, M., and Hori, M., Current Appl. Phys. 13, S59S63 (2013).CrossRefGoogle Scholar
Bruggeman, P. and Leys, C., J. Phys. D: Appl. Phys. 42, 053001 (2009).CrossRefGoogle Scholar
Chen, Q., Saito, K., Takemura, Y., Shirai, H., Thin Solid Films 516, 6688 (2008).CrossRefGoogle Scholar
Halliwell, B. and Whiteman, M., British J. Pharmacology 142, 231 (2004).CrossRefGoogle Scholar