Smart labels will be able to determine the quality of the products
Is it safe to eat long been lying in the fridge cheese? Or use eye shadows that are lying idle for several years? Scientists are developing “smart” labels, which might help to figure it out.
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A group of researchers from Clarkson University (USA) is developing a new sensor that consists of nanostructures that change color when in contact with components, indicating, for example, the faulty product. The new sensor contains all the necessary reagents in a small paper label. It can be on packaging for cosmetic or food product.
Researchers have used the paper sensor to identify the elements of the antioxidants in tea and wine (it may be useful to establish the authenticity of the product). In addition, according to the researchers, the new sensor can be used to identify new medicinal plants or natural sources of antioxidants in hard to reach areas — for example, in the Amazon rainforest.