Scientists in Sweden have shown that it is possible to sort and count nanoparticles, even once they have formed aggregates, which could be of importance in the cosmetics industry particularly for sunscreen formulators.
Coating nanoparticles with a surfactant of the sort often found in personal care products may aid their removal from wastewater treatment systems, according to scientists in the UK.
Friends of the Earth has recently released a report on the presence
of nanotech particles in sunscreens, appealing to consumers to
lobby the industry and calling for a moratorium on products
containing nanoparticles.