ID 106002
Author
Nhung, Le Thi Tuyet Department of Preventive Environment and Nutrition, Institute of Health Biosciences, the University of Tokushima Graduate School
Nagata, Hirofumi Department of Optical Science and Technology, Institute of Socio Techno Sciences, the University of Tokushima Graduate School
Takahashi, Akira Department of Preventive Environment and Nutrition, Institute of Health Biosciences, the University of Tokushima Graduate School Tokushima University Educator and Researcher Directory KAKEN Search Researchers
Aihara, Mutsumi Department of Preventive Environment and Nutrition, Institute of Health Biosciences, the University of Tokushima Graduate School Tokushima University Educator and Researcher Directory KAKEN Search Researchers
Okamoto, Toshihiro Department of Optical Science and Technology, Institute of Socio Techno Sciences, the University of Tokushima Graduate School Tokushima University Educator and Researcher Directory KAKEN Search Researchers
Shimohata, Takaaki Department of Preventive Environment and Nutrition, Institute of Health Biosciences, the University of Tokushima Graduate School Tokushima University Educator and Researcher Directory KAKEN Search Researchers
Mawatari, Kazuaki Department of Preventive Environment and Nutrition, Institute of Health Biosciences, the University of Tokushima Graduate School Tokushima University Educator and Researcher Directory KAKEN Search Researchers
Akutagawa, Masatake Department of Electrical and Electronic Engineering, Institute of Socio Techno Sciences, the University of Tokushima Graduate School Tokushima University Educator and Researcher Directory KAKEN Search Researchers
Kinouchi, Yohsuke Department of Electrical and Electronic Engineering, Institute of Socio Techno Sciences, the University of Tokushima Graduate School Tokushima University Educator and Researcher Directory KAKEN Search Researchers
Haraguchi, Masanobu Department of Optical Science and Technology, Institute of Socio Techno Sciences, the University of Tokushima Graduate School Tokushima University Educator and Researcher Directory KAKEN Search Researchers
Keywords
disinfection
Bacillus spore
UV light
photocatalytic
Content Type
Journal Article
Description
UV light and photocatalysts such as titanium dioxide (TiO2) and silver (Ag) are useful for disinfection of water and surfaces. However, the effect of UV wavelength on photocatalytic disinfection of spores is not well understood. Inactivation of Bacillus spores has been examined using different UV wavelengths and TiO2 or TiO2/Ag composite materials. The level of UVA disinfection of Bacillus anthracis and Bacillus brevis vegetative cells increased with the presence of the TiO2 and Ag photocatalysts, but had little effect on their spores. B. brevis spores were slightly more sensitive to UVB and UVC than the spores of B. atrophaeus. Photocatalytic sterilization against spores was strongest in UVC and UVB and weakest in UVA. The rate of inactivation of Bacillus spores was significantly increased by the presence of TiO2, but was not markedly different from that induced by the presence of Ag. Therefore, TiO2/Ag plus UVA can be used for the sterilization of vegetative cells, while TiO2 and UVC are effective against spores.
Journal Title
The journal of medical investigation : JMI
ISSN
13431420
NCID
AA11166929
Volume
59
Issue
1-2
Start Page
53
End Page
58
Sort Key
53
Published Date
2012-02
Remark
P.53の著者の英語表記に誤植(誤)Yhosuke(正)Yohsuke
EDB ID
DOI (Published Version)
URL ( Publisher's Version )
FullText File
language
eng
TextVersion
Publisher
departments
Science and Technology
Medical Sciences
Bioscience and Bioindustry