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10"

10"5 10"4 Dextran concentration (mol dm"3)

10"

Figure 8.19 Variation of indices of red-cell aggregation with the concentration of five dextran fractions of different molecular weight: (a) microscopic aggregation index; (b) relative viscosity at a shear rate of 0.1 s_1. Note that the maximum of each curve (that is, maximum aggregation of the red cells) corresponds to a well-defined concentration of a particular dextran fraction. Maxima in both indices of aggregation of red cells occur at about the same concentration of dextran fraction.

Reproduced from S. Chien, Bibl. Anat. Basel, 11, 244 (1973).

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