Characterization of Hair Lipid and Protein Dynamics Using EPR Spectroscopy and Treatment Effects
December 2023
in “
Journal of molecular structure
”
New to propylene glycol? There is a guide in the encyclopedia. Read the guide → EPR spectroscopy lipid dynamics protein dynamics hair membranes cuticle region ionic detergents SDS CTAC HPS nonionic surfactant Tween 80 propylene glycol membrane fluidity membrane rigidity lipid spin labels spin label EPR sodium dodecyl sulfate cetyltrimethylammonium chloride hexadecylpyridinium chloride polysorbate 80
Studysummary This study found that hair membrane fluidity is low in the cuticle but high in the cortex and medulla, with treatments like ionic surfactants and oleic acid increasing fluidity in hydrated hair; however, dehydration significantly reduces fluidity throughout the hair.
Our plain-language summary. Not medical advice or a treatment recommendation. Consult a qualified healthcare professional before changing treatment. Full disclaimer
The study utilized spin label EPR spectroscopy to analyze the lipid and protein dynamics in hair membranes, particularly in the cuticle region. It was found that the fluidity of hair membranes is generally lower than that of biological cell membranes. Treatments with ionic detergents (SDS, CTAC, HPS) and the nonionic surfactant Tween 80 significantly increased cuticle membrane fluidity, while propylene glycol at 50% caused membrane rigidity and extracted lipid spin labels. These findings highlight the potential of EPR spectroscopy in evaluating the effects of various chemical treatments on hair, which could benefit industries producing haircare products.
