Sterilization Using 365 nm UV-LED

Author

Yagi, N. ; Mori, M. ; Hamamoto, A. ; Nakano, M. ; Akutagawa, M. ; Tachibana, S. ; Takahashi, A. ; Ikehara, T. ; Kinouchi, Y.

Author_Institution

Univ. of Tokushima, Tokushima

fYear

2007

fDate

22-26 Aug. 2007

Firstpage

5841

Lastpage

5844

Abstract

There are several methods used for sterilization. In those methods chlorine, heat and UV rays are traditionally used. In recent years, the UV sterilization is taken notice as a sterilization method that the sterilized object does not change in quality and is environment-friendly. In this paper, an UV-LED is focused because it does not contain harmful substance and has longer operating life. The results have showed that complete germicidal effects for E. coli and Vibrio parahaemolyticus by UV-LED exposure of 30 minutes and 10 minutes, respectively. These results suggest that the UV-LED has sterilization effects. Therefore, UV-LED can be used as a sterilization device.

Keywords

antibacterial activity; biological effects of ultraviolet radiation; light emitting diodes; E. coli; UV sterilization; UV-LED; Vibrio parahaemolyticus; chlorine; germicidal effects; harmful substance; operating life; time 10 min; time 30 min; wavelength 365 nm; Brightness; Chemical technology; Curing; Food technology; Humans; Light emitting diodes; Light sources; Microorganisms; Resins; Yagi-Uda antennas; Cell Survival; Dose-Response Relationship, Radiation; Equipment Design; Equipment Failure Analysis; Escherichia coli; Lighting; Radiation Dosage; Semiconductors; Sterilization; Ultraviolet Rays; Vibrio parahaemolyticus;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2007. EMBS 2007. 29th Annual International Conference of the IEEE

Conference_Location

Lyon

ISSN

1557-170X

Print_ISBN

978-1-4244-0787-3

Type

conf

DOI

10.1109/IEMBS.2007.4353676

Filename

4353676