Researchers warn that a combination of nanoparticles and contaminants may form a cocktail that is harmful to our cells. In their study, 72 pct. of cells died after exposure to a cocktail of nano-silver and cadmium ions.
Nanoparticles are becoming increasingly widespread in our environment. Thousands of products contain nanoparticles because of their unique properties. Silver nanoparticles are one example: They have an effective antibacterial effect and can be found in refrigerators, sports clothes, cosmetics, tooth brushes, water filters, etc.
Professor Frank Kjeldsen, SDU, has lad a cell study, that, in his view, causes concern. The study is published in Nanotoxicoloy.
This is Frank Kjeldsen is a Professor at Dept of Biochemistry and Molecular Biology, University of Southern Denmark.
In the study, 72 pct. of the cells died, when exposed to both nanosilver and cadmiun ions. When exposed to nanosilver only, 25 pct. died. When exposed to cadmium ions only, 12 pct. died.
• Products with nano particles are being developed and manufactured every day, but in most countries there are no regulations, so there is no way of knowing what and how many nanoparticles are being released into the environment. In my opinion, this should be stopped.
One study showed that nano-silver leads to the formation free radicals in cells and changes in the form and amount of proteins. Many serious diseases are characterized by an overproduction of free radicals in cells. This applies to cancer and neurological diseases such as Alzheimer's and Parkinson's.
His research into metal nano particles is backed by a ERC Grant of 14 m DKK.
University of Southern Denmark. Posted: Aug 20, 2018.
Nota do Scientific Editor: A publicação que deu origem a esta notícia de título: "Co-exposure to silver nanoparticles and cadmium induce metabolic adaptation in HepG2 cells", de autoria de Renata Rank Miranda, Vladimir Gorshkov, Barbara Korzeniowska, Stefan J. Kempf, Francisco Filipak Neto & Frank Kjeldsen, foi publicado online no periódico Nanotoxicology, em julho de 2018, https://doi.org/10.1080/17435390.2018.1489987.