Abstract
The dependence of the water self-diffusion coefficients as well as of the proton spin-lattice and spin-spin relaxation rates on the concentration have been studied in the gelatin-water system and in hydrated native collagen. The bound and free water fractions and the corresponding spin-spin and spin-lattice relaxation rates have been determined within the multi-phase water proton exchange model. Various theoretical models for the water proton cross-relaxation to the biopolymer have been studied and the results compared with the observed Larmor frequency dependence of the water proton spin-lattice relaxation rate.
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Blinc, R., Rutar, V., Zupanĉiĉ, I. et al. Proton NMR relaxation of adsorbed water in gelatin and collagen. Appl. Magn. Reson. 9, 193–216 (1995). https://doi.org/10.1007/BF03162042
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DOI: https://doi.org/10.1007/BF03162042