Book Reviews

Viscosity of Cellular Protoplasm

Science  15 Feb 1974:
Vol. 183, Issue 4125, pp. 666-668
DOI: 10.1126/science.183.4125.666

Abstract

The protoplasmic viscosity was studied by using a small spin label having high permeability and broad solubility properties and nickel chloride as an extracellular spin-subtracting agent to localize signal inside cells. The viscosity is variable and in some cells is many times that of water or phospholipids, suggesting that lateral diffusion in biological membranes is important to cell function.

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