Use of acoustic shutdown in the photocatalytic method of disinfection of indor areas

The potential development of common and professional diseases of the agro-industrial complex laborers resulting in temporal as well as sustainable loss of their work capacity is in direct relationship to harmful labor conditions, particularly, to negative parameters of workplaces microclimate. The result of microorganisms' adaptation to the ambient conditions is the absence of facilities use effect for their disinfection. The bacteria resistance to antimicrobial agents led to the indication of the fundamental up to date problem - the search for the alternative means and methods of protection from bacterial infection, in relation to which bacteria during the long period will not be able to acquire resistance. The hot topic in the sphere of labor protection is the application of innovations of modern science and technology specially directed search for active compounds and substances to struggle with microbial content, provided with the increase of pathogen strains resistibility to antibiotics of different action spectrum and formation, reluctant to elimination of biofilms from bacterial colonies. One of the solutions of this problem is the possibi-lity to use single oxygen obtained in photocatalysis process, as bactericide agent, and in correspondence with it, search and synthesis of new compounds - photosensitizers and study of their antibacterial properties. In the capacity of active substance for pathogenic microorganisms inactivation we examined reactive oxygen species which generate photosensitizers at the photodynamic effect. As a germicide, we used the composition based on furocoumarin and the exposure was carried out with near-UV radiation (UV radiation with the wavelength of 320-400 nm). The spraying and radiation were performed for 5-10 minutes per day within 15 days using a photocatalytic air cleaner developed by us. According to the experiment results, the decrease of ge-neral microbial content at the average of by 4 times was observed.