Manipulation of optical properties of human skin by light scattering nanoparticles of titanium dioxide

Alexey P. Popov, Alexander V. Priezzhev, Jürgen Lademann, Risto Myllylä

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    5 Citations (Scopus)


    An acute problem to protect human skin against harmful UV solar rays emerged in recent years because of increased occasions of skin cancer. The aim of this research is to evaluate, how optical properties of the horny layer of human skin can be changed by imbedding the titanium dioxide (TiO2) fine particles in order to achieve the maximal attenuation of the UV solar radiation. In-depth distribution in the skin of TiO2 particles typically achieved with the sunscreens is determined experimentally by the tape-stripping technique. Computer code implementing the Monte Carlo method is used to simulate photon migration within 20-μm thick horny layer partially filled with nano-sized TiO2 spheres. Dependencies of absorbed by and reflected from, as well as transmitted through the horny layer UV radiation of two wavelengths (310 and 400 nm) on the concentration of TiO2 particles are obtained and analyzed.

    Original languageEnglish
    Title of host publicationPhotonics North 2004
    Subtitle of host publicationPhotonic Applications in Astronomy, Biomedicine, Imaging, Materials Processing, and Education
    EditorsMarc Nantel, Glen Herriot, Graham H. McKinnon, Leonard MacEachern, Robert A. Weersink, Rejean Munger, Andrew Ridsdale
    PublisherInternational Society for Optics and Photonics SPIE
    Publication statusPublished - 1 Dec 2004
    MoE publication typeA4 Article in a conference publication
    EventPhotonics North 2004: International Conference on Applications of Photonic Technology, ICAPT - Ottawa, Canada
    Duration: 26 Sept 200429 Sept 2004

    Publication series

    SeriesProceedings of SPIE


    ConferencePhotonics North 2004


    • Horny layer
    • Human skin
    • Monte Carlo simulation
    • Photon migration
    • Titanium dioxide particles
    • UV radiation


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