Decontamination of biological warfare agents by a microwave plasma torch

Autor:	Henry Lai, Wilson Lai, Kalle Levon, Olga Tarasenko, Spencer Kuo
Rok vydání:	2005
Předmět:	Physics Torch fungi Nozzle Airflow Radiochemistry Nanotechnology Plasma Human decontamination Condensed Matter Physics Endospore law.invention law Plasma torch Plasma diagnostics
Zdroj:	Physics of Plasmas. 12:023501
ISSN:	1089-7674 1070-664X
DOI:	10.1063/1.1843131
Popis:	A portable arc-seeded microwave plasma torch running stably with airflow is described and applied for the decontamination of biological warfare agents. Emission spectroscopy of the plasma torch indicated that this torch produced an abundance of reactive atomic oxygen that could effectively oxidize biological agents. Bacillus cereus was chosen as a simulant of Bacillus anthracis spores for biological agent in the decontamination experiments. Decontamination was performed with the airflow rate of 0.393l∕s, corresponding to a maximum concentration of atomic oxygen produced by the torch. The experimental results showed that all spores were killed in less than 8 s at 3 cm distance, 12 s at 4 cm distance, and 16 s at 5 cm distance away from the nozzle of the torch.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d9ac2868e3c23ba91f314524277417d0 https://doi.org/10.1063/1.1843131 Zobrazit plný text záznamu