1H-NMR study of water dynamics in hydrated collagen: Transverse relaxation-time and diffusion analysis
Résumé
Water proton transverse relaxation times (T-2) and self-diffusion coefficients (D) were measured in randomly oriented hydrated collagen fibers. Three T-2 relaxation times were discerned indicating the presence of at least three,vater fractions in the collagen sample. The D values associated with each water fraction were determined. The diffusion time dependence of D suggests water motion is restricted by macromolecular structure. The experimental results are discussed with reference to the structural properties of hydrated collagen fibers.