2011 Fiscal Year Final Research Report
A study of ant-bacterial effect of low-concentration chlorine dioxide gas against airborne causative bacteria of nosocomial infection.
| Project/Area Number |
21591299
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Infectious disease medicine
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| Research Institution | Showa University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
SHOJI Hisashi 昭和大学, 医学部, 助教 (20412174)
NIKI Yoshihito 昭和大学, 医学部, 教授 (50156030)
TAKUMA Takahiro 昭和大学, 医学部, 助教 (10585706)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 院内感染制御 / 二酸化塩素ガス / リアルタイム細菌数測定 / 微生物不活化効果 |
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| Research Abstract |
We assessed the antimicrobial effect of low-concentration chlorine dioxide(ClO_2) gas against air bone bacteria in an indoor environment(a medical office of Showa university(66.5 m^3, live space)). Firstly, we calculated the number of air bone bacteria using air sampler in a medical office(control)(temperature and humidity was not controlled.). And then, safe low-concentration ClO_2 gas was generated in the medical office. Coming in and out at the door were not restricted. The concentration of ClO2 gas was stable at 0.01 ppm. 0.02 ppm approximately. When low-concentration ClO_2 gas was generated in a room, indoor airborne bacteria were reduced compared with the control level. This antimicrobial effect of low concentration ClO_2 gas was continued during the period that ClO_2 gas was generated. Low concentration ClO2 gas is effective for reducing the number of air bone bacteria in a live space.
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