Nanoparticles and the questions beyond what they are

Health experts are calling for a safety standards body to be set up to monitor the use of nanoparticles added to foods, sunscreens and cosmetics. File image. Source: UNSW/AAP

Nanomaterials exist just about everywhere. Some are manufactured, and some are engineered. Either way, scientists want to find out whether overexposure to them could harm people...

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