title: Fourier-transform Raman spectroscopic study of human hair.
abstract: Fourier-transform Raman microscopic spectra of normal, untreated and bleached hair fibres are presented. Vibrational assignments are made and differences are ascribed to the production of cysteic acid from cysteine. Changes in conformation associated with the disulphide bond in the keratotic component are noted from the v(CSSC) vibrational modes at wave numbers near 500 cm-1. Raman spectra of hair root ends have also been investigated with a diminution in cysteine content being observed. Application of the technique to the biomedical investigation of healthy and diseased hair is proposed.
authors.affiliation: University of Bradford, UK.
authors.forename: W
authors.initials: W
authors.lastname: Akhtar
authors.forename: H G
authors.initials: HG
authors.lastname: Edwards
authors.forename: D W
authors.initials: DW
authors.lastname: Farwell
authors.forename: M
authors.initials: M
authors.lastname: Nutbrown
mesh_terms: D000293:Adolescent; D000328:Adult; D000596:Amino Acids / Q000032:analysis; D002648:Child; D003544:Cysteic Acid / Q000032:analysis; D003545:Cysteine / Q000032:analysis; D004220:Disulfides / Q000737:chemistry; D005260:Female; D005583:Fourier Analysis; D006197:Hair / Q000737:chemistry*; D006801:Humans; D007633:Keratins / Q000737:chemistry; D008968:Molecular Conformation; D011487:Protein Conformation; D017433:Protein Structure, Secondary; D013059:Spectrum Analysis, Raman
chemical_list: D000596:Amino Acids; D004220:Disulfides; D007633:Keratins; D003544:Cysteic Acid; D003545:Cysteine