from the rotational correlation times of the tempone spin label it was found that the effective microviscosity in the cytoplasm of normal cells ( approx . 3-8 cp ) was considerably higher than that of the external medium ( 1 cp ) and increased 1.5-2-fold under high osmotic stress ( 1.9 osmol/l ) .
C0007634
the
C0010834
cytoplasm