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Germany evaluates the potential cancer risk of nanomaterials and nanoparticles in products

nanomaterials are widely used in industry and consumer goods. Recently, the German environmental risk assessment was first carried out by the BFR and the Federal Environment Agency (UBA) on the possible carcinogenic effects of various nano materials

According to BFR and UBA, a series of animal studies with displacement measurement range (mm) of 0 ~ 150 have shown that many nano materials, such as carbon nanotubes (CNTs) and titanium dioxide (TiO2), may cause cancer through respiratory tract intake (inhalation). However, the available data are not sufficient to classify these materials as "likely to cause cancer". The reason is that these data usually come from animal experiments, and the internal properties of these substances are not known

in addition, the current conclusions are neither about the release of nano materials in products nor about their exposure risks, so the general reasons for errors in products and accessories are the following. The relevant data of nano materials contained are useless. And the reality is that only a few organizations have studied the release of nano materials in products, and many technical means are not yet mature. Therefore, the nano materials and nanoparticles in products are not sure whether they will cause cancer

bfr and UBA indicate that the potential carcinogenicity of some nano materials still needs to be paid attention to, except for the existing uncertainties. The focus of the assessment should be on which groups of people are vulnerable to exposure in daily life. When the universal experimental machine shows stability, high accuracy and convenient use, various possible ways (inhalation, skin, mouth) determine the toxicological properties of nano materials. Therefore, the potential health risks of nano materials are different, depending on different materials. Researchers should conduct more research on this issue

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