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Toxic nanoparticles may enter the body with food
In recent years significantly increased the use of nanomaterials in water filters, food packaging, cosmetics and pest control. Agricultural workers, for example, use of silver nanoparticles as pesticides because of their ability to inhibit the growth of harmful organisms. But there is a problem, and it is these particles that may pose a potential threat to the human body and the environment as a whole.
Researchers from the University of Missouri have learned to detect the silver nanoparticles in fresh fruit and other foods , says a resource Phys, publishes papers on developments in the field of science and technology.
More than 1,000 food products on the market are based on nanotechnology. The problem is that we do not even know how toxic nanoparticles. Our goal – as soon as possible to detect, identify and quantify these particles in food, as well as to fully explore their toxicity – says Mengshi Lin, associate professor of College of Agriculture, Food Industry and Natural Resources University of Missouri.
The object of the study was chosen pear grown with the use of nanotechnology. Initially, researchers fruit immersed in a special solution containing silver nanoparticles, then took them repeatedly washed and rinsed with pure water. The study found that four days after the experience of the silver particles were still on the peel pears, and the smallest of them managed to penetrate into the flesh.
The penetration of silver nanoparticles in the fruit is more dangerous than just being on the peel. After fermentation, they are deposited into the body. Thus, the smallest particles can cause more harm than their larger relatives. Once in the body, they migrate through the blood and lymph in the most sensitive organs such as the spleen, brain, liver and heart, referred to in Ref.
The trend towards the use of other types of nanoparticles produced a revolution in the food industry. Nanotechnology improved the taste, color and shelf life of food products. However, scientists are concerned about the use of silver nanoparticles are potentially harmful to the human body.
The full study was published in the journal Journal of Agricultural and Food Chemistry.
Worse than the silver nanoparticles can only be parasitic worms .
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Tags: Food , University of Missouri , Nanotechnology .
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