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Nano Sunscreen from the Garden

By: Jeff Falk
Posted: November 9, 2010

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Although it was important for Zhang to assess the UV protection of the English ivy nanoparticles, it was equally as important to assess their skin penetration and toxicity for comparison with metal-based nanoparticle UV filters. It was concluded that English ivy nanoparticles could not penetrate the stratum corneum layer of skin in cosmetic applications.

Additionally, the adhesion properties of the ivy nanoparticles could enhance the durability of sunscreens, reducing the frequency of re-application. Zhang’s team is still refining ways to optimize the nanoparticles for specific applications, as well as an eco-friendly scale-up method.