The quantitative determinations of the effects of different wavelengths or spectral regions in sunlight on skin and on molecules in skin are important not only to devise appropriate protective measures against the deleterious actions of light exposure, but also to assess the molecular bases of the effects mediated by molecular absorbers. Such absorbers include the macromolecular structures of nucleic acids, proteins, and lipids, as well as smaller, possibly key, molecules such as urocanic acid and numerous photodynamic sensitizers as well as psoralens.


Action Spectrum Physiological Aspect Xeroderma Pigmentosum Minimal Erythema Dose Monodelphis Domestica 
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© Springer-Verlag Berlin Heidelberg 1997

Authors and Affiliations

  • Richard B. Setlow

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