1 July 2008 Wavelength-dependent penetration depths of ultraviolet radiation in human skin
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Abstract
The wavelength-dependent penetration depth of ultraviolet radiation in human skin is a fundamental parameter for the estimation of the possible photobiological impact of ultraviolet (UV) radiation. We have determined the absorption spectra of human skin in vivo in the wavelength range from 290 to 341 nm in 3-nm steps using laser optoacoustics and calculated the respective penetration depths. Data were analyzed with respect to different skin regions and skin phototype of the 20 subjects in the study (phototype I: n=3; II: n=7; III: n=5; IV: n=5), revealing large variability between individuals. The penetration depth of UV radiation in human skin is highly dependent on wavelength and skin area, but no significant dependence on skin phototype could be found.
Merve Meinhardt, Ronald Krebs, Angelika Anders, Ulrike Heinrich, Hagen Tronnier, "Wavelength-dependent penetration depths of ultraviolet radiation in human skin," Journal of Biomedical Optics 13(4), 044030 (1 July 2008). https://doi.org/10.1117/1.2957970
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