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Quantitative detection of chemical compounds in human hair with coherent anti-Stokes Raman scattering microscopy.

Journal of biomedical optics (2009-09-04)
Maxwell Zimmerley, Chia-Yu Lin, David C Oertel, Jennifer M Marsh, Jimmie L Ward, Eric Olaf Potma
ABSTRACT

Coherent anti-Stokes Raman scattering (CARS) microscopy is used to determine the distribution and concentration of selected compounds in intact human hair. By generating images based on ratiometric CARS contrast, quantitative concentration maps of both water and externally applied d-glycine are produced in the cortex of human hair fibers. Both water and d-glycine are found to homogeneously distribute throughout the cortical regions of the hair. The ability to selectively detect molecular agents in hair fibers is of direct relevance to understanding the chemical and physical mechanisms that underlie the performance of hair-care products.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Glycine-d5, 98 atom % D

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