|Title:||Effect of multivalent cations on the adhesion rate of cellular surfaces bearing ionizable groups||Authors:||Chang Y.-I.
|Keywords:||Adhesion rate;DLVO theory;Multivalent cations;Sheep leucocytes||Issue Date:||1995||Journal Volume:||96||Journal Issue:||1¤ë2¤é||Start page/Pages:||155-163||Source:||Colloids and Surfaces A: Physicochemical and Engineering Aspects||Abstract:||
The effect of the presence of multivalent cations in a suspension medium on the rate of adhesion of a charge-regulated cell is investigated theoretically. By using sheep leucocytes as an illustrative example, it is found that the presence of multivalent cations has the effect of decreasing the rate of adhesion of the cells. On the basis of the concept of the Donnan potential, it is found that the magnitude of the electrostatic force for an ion-penetrable membrane is much smaller than that for an ion-impenetrable cell membrane. Under a fixed concentration of cations in the suspension medium, the rate of adhesion of the cells increases with the P?clet number, aspect ratio and Hamaker constant. ? 1995.
|Appears in Collections:||化學工程學系|
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