Potential toxicity of zinc nanoparticles in sunscreen products

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Potential toxicity of zinc nanoparticles in sunscreen products

Scientists are reporting that particle size affects the toxicity of zinc oxide, a material widely used in sunscreens. Particles smaller than 100 nanometers are slightly more toxic to colon cells than conventional zinc oxide. Solid zinc oxide was more toxic than equivalent amounts of soluble zinc, and direct particle to cell contact was required to cause cell death. Their study is in ACS' Chemical Research in Toxicology, a monthly journal.

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Tags: Mineral, Zinc, Scientist