| ID | 111322 |
| Author |
Gadelmoula, Mostafa
The University of Tokushima
Lian, Xin
The University of Tokushima|Japan Science and Technology Agency
Maeda, Miku
The University of Tokushima
Aihara, Mutsumi
The University of Tokushima|Japan Science and Technology Agency
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Mawatari, Kazuaki
The University of Tokushima
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Hamamoto, Akiko
The University of Tokushima
Harada, Yumi
The University of Tokushima
Yamato, Masayuki
The University of Tokushima
Akutagawa, Masatake
The University of Tokushima
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Nakaya, Yutaka
The University of Tokushima
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Kinouchi, Yohsuke
The University of Tokushima
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Takahashi, Akira
The University of Tokushima
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|
| Keywords | airborne pathogens
air disinfection
ultraviolet germicidal irradiation (UVGI)
ultraviolet light emitting diodes (UV-LED)
|
| Content Type |
Journal Article
|
| Description | We previously developed a high powered light-emitting diode device capable of discharging germicidal ultraviolet irradiation (UVA-LED) at an approximate wavelength of 365 nm. This study examined the bactericidal activity of UVA-LED in moving air streams. Aerosols of Escherichia coli DH5α were exposed to UVA-LED irradiation using a stable current (0.5 A and 1.2 mW/cm2) or pulse current (1.0 A and 0.2 mW/cm2). Settle plate analysis was used for bioaerosol sampling, where results were expressed as Colony Forming Units. A-3 Log inactivation of the E. coli population occurred after 75 minutes of constant exposure to stable current. The pulse current produced inactivation within a similar timeframe. Our results might be significant as a basic study for further investigations about the effect of UVA-LED on airborne bacteria and its suitability for air disinfection applications.
|
| Journal Title |
The Journal of Medical Investigation
|
| ISSN | 13496867
13431420
|
| NCID | AA11166929
AA12022913
|
| Publisher | Faculty of Medicine Tokushima University
|
| Volume | 56
|
| Issue | 3-4
|
| Start Page | 150
|
| End Page | 156
|
| Sort Key | 150
|
| Published Date | 2009-08
|
| EDB ID | |
| DOI (Published Version) | |
| URL ( Publisher's Version ) | |
| FullText File | |
| language |
eng
|
| TextVersion |
Publisher
|
| departments |
Bioscience and Bioindustry
Medical Sciences
Science and Technology
|
