Microcyn™:: a novel super-oxidized water with neutral pH and disinfectant activity
Microcyn™:: a novel super-oxidized water with neutral pH and disinfectant activity
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DOI:
10.1016/j.jhin.2005.04.021
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发表时间:
2005-12-01
影响因子:
6.9
通讯作者:
Gutierrez, AA
中科院分区:
文献类型:
--
作者:
Landa-Solis, C;González-Espinosa, D;Gutierrez, AA
A new super-oxidized water (SOW) product, Microcyn(TM), was tested for in vitro antimicrobial. and antiviral activities. The effectiveness of this neutral-pH SOW at kitting Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Salmonella typhi and Candida albicans in pure culture was evaluated. One millilitre (similar to 10(8) colony-forming units/mL) of each microorganism was subjected to 9 mL Microcyn or sterile water at room temperature for 30 s. Under these conditions, a log(10) reduction factor of 8 in the level of all pathogens occurred in the treatment samples. In addition, results of tests with three batches of Microcyn exposed to Bacillus atrophaeus spores for 5 min demonstrated complete inactivation of the spores within 2-3 min (log(10) reduction factor >4). The effectiveness of Microcyn in reducing human immunodeficiency virus-1 (HIV-1) on hard surfaces (glass) was also evaluated in compliance with Environmental Protection Agency requirements for virucidal claims. After exposure of the tested surfaces to Microcyn for 5 min without agitation, there was a Log(10) reduction factor > 3 in the viral, load as measured by both cytopathic effect and antigen p24 of HIV-1 production in MT-2 cultures. Microcyn activity against adenoviral vector type 5 was also analysed under simulated Laboratory in-use conditions with viral. suspensions. In order to increase the sensitivity of the test, the fluorescent light emitted by AdGFP-infected cells was measured with the use of a flow cytometer. A log(10) reduction factor > 3 in the viral load was achieved after a 5-min exposure to Microcyn under these strict conditions. These results show that Microcyn exerts a wide antimicrobial spectrum with major advantages over acidic SOWS, including neutral, pH, Lower free active chlorine (51-85 ppm) and tong shelf Life (1 year). (C) 2005 The Hospital Infection Society. Published by Elsevier Ltd. All rights reserved.