Silver nanoparticles are not different from the silver ion effects on humans, and in some cases, by the activity of the ions even surpass them, said Oksana Sinitsyna of State Organization "Institute of Human Ecology and Environmental Hygiene them. AN Sysina "in the Ministry of Education of Russia at the presentation of" Safety in the use of nanotechnology products "on the basis of the Federal Program" Development of nano-industry infrastructure in the Russian Federation in 2008-2011. "
How nanoparticles are safe for human health? The answer to this question, researchers have tried to find out FGBU "Institute of Human Ecology and Environmental Hygiene them. AN Sysina "Research Institute disinfectology, the Research Institute of Occupational Medicine of Medical Sciences, Federal Research Centre for Hygiene. FF Erisman, Faculty of Biology, Moscow State University named after MV Lomonosov Moscow State University and the All-Russian Scientific Research Institute of Metrological Service.
In the course of establishing the reference analytical laboratory to determine the content of nanoparticles and nanomaterials in the household cleaning products, disinfectants and perfumes and beauty products and the development of control methods in the production of nanoparticles, researchers have conducted comparative experiments: experiments on isolated cells examined the effects of silver on the representatives of the normal microflora and the human fibroblasts. In this silver nanoparticles compared with silver ions, which were also dissolved in the surface-active substances (surfactants).
The research result was unexpected: in experiments on the normal flora of the skin of the silver nanoparticles have not identified any specific properties. For example, effects on ionic silver Staphylococcus epidermidis were nearly four times more active than silver nanoparticles. With respect to the other members of the skin microflora nanoparticles possess the same activity or significantly exceed the activity of the ions of the nanoparticles. "In tests on human skin fibroblasts have turned even more interesting results that do not allow any conclusions regarding the nanoparticles," — said Oksana Sinitsyna. In the control after exposure had 97 percent of live cells only in the presence of surfactant in solution at no living cells and the nanoparticles and surfactant had 10 percent of live cells, while the silver ion in solution with surfactants — only 6 percent . In other words, as ionic silver nanoparticles and smoothed toxic effect solution. "To say that the nanoparticles are dangerous, toxic, we can not", — added Sinitsyna.
The work was carried out during the execution of a state contract "Development of regulatory and methodological support and controls the content of nanoparticles in household cleaning products, perfume and cosmetic products."