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Diffusion of water across narrow pores of bio membranes

Biofizika 23(5): 813-816

Diffusion of water across narrow pores of bio membranes

The pulsed-gradient NMR method was used to study diffusion of water through cell membranes (bakers' yeast). An analytical expression is derived for relative amplitude of nuclear spin-echo, describing the diffusion of water in membrane pores. The latter are so narrow that their diameter is only a little greater than the water molecule diameter. The experimental data for yeast with normal water content agree well with the theoretical dependence.

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Accession: 005161049

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