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ELECTRON SPIN RESONANCE IDENTIFICATION OF MELANIN IN COMEDONES
Author(s) -
GOODHEAD D. T.
Publication year - 1970
Publication title -
british journal of dermatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.304
H-Index - 179
eISSN - 1365-2133
pISSN - 0007-0963
DOI - 10.1111/j.1365-2133.1970.tb15043.x
Subject(s) - identification (biology) , electron paramagnetic resonance , medicine , melanin , dermatology , resonance (particle physics) , nuclear magnetic resonance , physics , chemistry , biology , atomic physics , biochemistry , botany
SUMMARY.— Comedones show an electron spin resonance spectrum characteristic of horny keratinous tissue in general. Those from dark‐skinned donors show the presence of an additional signal compatible with melanin. The ratio of the concentration of melanin unpaired spins in the comedones of the donors to that in an equal mass of hair of the same donor is between 3%, and 6%, according to these E. S. R. spectra. No melanin signal could be detected in comedones from fair‐haired fair‐skinned donors, probably because of its low concentration.