Nanoparticle
by Alan Kadish / Views 44 / February 1, 2015
Nanoparticle: A solid particle between 1 and 100 (billionths of a meter). Nanoparticles of zinc oxide and titanium dioxide are often used in sunscreen to prevent an unsightly white sheen on the skin. Unfortunately, evidence links nanoparticles to the creation of free radicals which can disrupt our cells.
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