Quantitative evaluation of SARS-CoV-2 inactivation using a deep ultraviolet light-emitting diode.
Quantitative evaluation of SARS-CoV-2 inactivation using a deep ultraviolet light-emitting diode.
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DOI:
10.1038/s41598-021-84592-0
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发表时间:
2021-03-03
影响因子:
4.6
通讯作者:
Nomaguchi M
中科院分区:
文献类型:
--
作者:
Minamikawa T;Koma T;Suzuki A;Mizuno T;Nagamatsu K;Arimochi H;Tsuchiya K;Matsuoka K;Yasui T;Yasutomo K;Nomaguchi M
Inactivation technology for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is certainly a critical measure to mitigate the spread of coronavirus disease 2019 (COVID-19). A deep ultraviolet light-emitting diode (DUV-LED) would be a promising candidate to inactivate SARS-CoV-2, based on the well-known antiviral effects of DUV on microorganisms and viruses. However, due to variations in the inactivation effects across different viruses, quantitative evaluations of the inactivation profile of SARS-CoV-2 by DUV-LED irradiation need to be performed. In the present study, we quantify the irradiation dose of DUV-LED necessary to inactivate SARS-CoV-2. For this purpose, we determined the culture media suitable for the irradiation of SARS-CoV-2 and optimized the irradiation apparatus using commercially available DUV-LEDs that operate at a center wavelength of 265, 280, or 300 nm. Under these conditions, we successfully analyzed the relationship between SARS-CoV-2 infectivity and the irradiation dose of the DUV-LEDs at each wavelength without irrelevant biological effects. In conclusion, total doses of 1.8 mJ/cm2 for 265 nm, 3.0 mJ/cm2 for 280 nm, and 23 mJ/cm2 for 300 nm are required to inactivate 99.9% of SARS-CoV-2. Our results provide quantitative antiviral effects of DUV irradiation on SARS-CoV-2, serving as basic knowledge of inactivation technologies against SARS-CoV-2.
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影响因子:
3.1
作者:
Darnell ME;Subbarao K;Feinstone SM;Taylor DR
通讯作者:
Taylor DR
影响因子:
158.5
作者:
Li, Qun;Guan, Xuhua;Feng, Zijian
通讯作者:
Feng, Zijian
影响因子:
6.9
作者:
Chan, K-H;Sridhar, S.;Yuen, K-Y
通讯作者:
Yuen, K-Y
影响因子:
4.1
作者:
Jen, JF;Leu, MF;Yang, TC
通讯作者:
Yang, TC
DOI:
10.1006/jmrb.1994.1062
发表时间:
1994-06-01
期刊:
JOURNAL OF MAGNETIC RESONANCE SERIES B
影响因子:
--
作者:
DULING, DR
通讯作者:
DULING, DR