Lucassen, G.W.

raman water skin surface stratum corneum concentration spectra stratum corneum surface spectrum raman spectra confocal spectroscopy image water concentration depth laser sweat signal raman spectroscopy study result raman spectrum sweat duct casper tissue method resolution light gland epidermis measurement difference dermatol microscope objective analysis blood prole constituent sebaceous gland layer experiment water content structure composition sebaceou right concentration proles microscope objective puppel microscopy wavelength raman signal intensity ratio protein imaging noninvasive confocal image raman measurements profile signal collection time vivo raman spectra figure change hydration information technique volar aspect water concentration profile raman laser research skin architecture model determination content plane function error