6 citations
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December 2019 in “International Journal of Cosmetic Science” White hair has weaker tryptophan fluorescence than other unpigmented fibers, possibly due to UV exposure or unknown substances.
April 2026 in “Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy” 20 citations
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January 2010 in “Biological Trace Element Research” 4 citations
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January 1993 in “Clinical Chemistry and Laboratory Medicine (CCLM)” The new method is 1000 times more sensitive for measuring hair growth.
1 citations
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January 2010 in “Biophysical journal” Hair fluorescence intensity can measure radiation exposure effectively.