Medical Definition of Polycation
1.
Macromolecule with many positively charged groups. at physiological pH the most commonly used in cell biology is poly L lysine, this is often used to coat surfaces thereby increasing the adhesion of cells (which have net negative surface charge).
See: cationised ferritin.
This entry appears with permission from the Dictionary of Cell and Molecular Biology
(11 Mar 2008)
Lexicographical Neighbors of Polycation
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