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Alteration of skin light-scattering and absorption properties by application of sunscreen nanoparticles: A Monte Carlo study |
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| Authors: | Alexey P Popov Alexander V Priezzhev Risto Myllylä |
| Affiliation: | a Optoelectronics and Measurement Techniques Laboratory, Faculty of Technology, University of Oulu, P.O. Box 4500, FI-90014 Oulu, Finland b International Laser Center, Lomonosov Moscow State University, 119991 Moscow, Russia c Center of Experimental and Applied Cutaneous Physiology, Department of Dermatology, Universitätsmedizin Charité Berlin, D-10117 Berlin, Germany |
| Abstract: | We report about the results of our investigations on the alteration of optical properties of the superficial layer of human skin at four UV range wavelengths, 310, 318, 360 and 400 nm, by application of 35-200 nm-sized particles of titanium dioxide (TiO2), silicon (Si) and zinc oxide (ZnO). The theoretical study based on combination of the Mie theory and Monte Carlo simulations reveals the optimal sizes of the nanoparticles minimizing the light transmittance for the considered wavelengths. |
| Keywords: | Nanoparticles TiO2 ZnO Si UV light Optical properties Skin Sunscreen Transmittance Scattering Mie theory Monte Carlo Simulations |
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