1H-nmr study of water dynamics in hydrated collagen: transverse relaxation-time and diffusion analysis.
Water proton transverse relaxation times (T2) and self-diffusion coefficients (D) were measured in randomly oriented hydrated collagen fibers. Three T2 relaxation times were discerned indicating the presence of at least three water 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.
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Structures Tissulaires et Interactions Moléculaires, SRV INRA Theix, St Genès Champanelle, France.
Foucat
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Renou
J P
JP
D000818:Animals; D002417:Cattle; D003094:Collagen / Q000737:chemistry*; D011487:Protein Conformation; D011522:Protons; D014867:Water / Q000737:chemistry*
D011522:Protons; D014867:Water; D003094:Collagen