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Sunscreen microsphere, SEM

Sunscreen microsphere, SEM

C021/5678

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Credit

STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY

Caption

Sunscreen microsphere, coloured scanning electron micrograph (SEM). Silicon microspheres, besides protecting against UV radiation, provides a thermoregulator effect thanks to the strong scattering properties of the microspheres in the infrared range of frequencies. Titanium dioxide and zinc oxide nanoparticle form the main active components of sunscreens. Unlike the organic sun-blocking agents used in many sunscreens, these metal oxides do not degrade with exposure to sunlight. Magnification: x8000 when printed at 10 centimetres wide.

Release details

Model release not required. Property release not required.

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