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. 1974 Apr;14(4):316–326. doi: 10.1016/S0006-3495(74)85918-7

Cytoplasmic Solvent Structure of Single Barnacle Muscle Cells Studied by Electron Spin Resonance

Fred Sachs, Ramon Latorre
PMCID: PMC1334510  PMID: 4364470

Abstract

A free radical probe was introduced into single barnacle muscle cells, and its freedom of motion inferred from the spin resonance spectra. The probe reported an average local viscosity of 5-10 cp compared with 1 cp for pure water. From a comparison of the temperature dependence of the probe's tumbling rate in model aqueous systems and in the muscle we concluded that in the muscle the probe was undergoing fast exchange between sites of different mobility. Thus 10 cp must be taken as an upper limit for the viscosity of most cell water.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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