Nannomaterials Case Study

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In recent years, the area of nanoscience and nanotechnology has had a wide growth in practical applications in technology, research, cosmetics, food and medicine as a consequence of attractive properties of nanomaterials (NMs) (small size, particular shape, large surface, among others). However, these properties are different from those of larger scale material with the same chemical composition and can have major toxicological consequences (Oberdörster, Oberdörster & Oberdörster 2005). Subsequently, it will discuss these properties and possible risks to human health (see chapter X). NMs have increasingly incorporated into consumer products despite the investigation is still ongoing and their potential effects on the environment and human health. But, what is a NM? They are defined as materials with at least one external dimension in the size range from…show more content…
Cosmetic products contain a variety of nanomaterials such as silver NPs, silica, titanium dioxide (TiO2), zinc oxide (ZnO), nano-organic, gold and others (Commission staff working paper (EU) 2012). For example, TiO2 and ZnO are also used as bulking, skin protector and as an UV absorber. Therefore, both NMs provide outstanding advantages for use of sunscreens (Serpone, Dondi & Albini 2007). Furthermore, they have an antimicrobial property, which can be used as an active agent in self-cleaning products. In Europe, ZnO is authorised also as colourant (in Council Directive 76/768/EEC Annex IV) in all cosmetics. Nevertheless, the safety of TiO2 and ZnO destined for use in modern sunscreen is not clear. Some researchers conclude that TiO2 and ZnO NPs need for further research, deeper studies and appropriate investigations in vivo (Osmond, Mscallm 2010, Newman, Stotland & Ellis
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