engleski

Probing cell surface charge by scanning electrode potential

A static mercury electrode was used for measurement of double-layer charge displacement signals caused by living plant cells of the unicellular marine alga Dunaliella tertiolecta. By scanning the electrode potential a point is reached where the charge density of a plant cell compensates the electrode charge density. The experimentally determined values of surface charges for unicellular marine alga Dunaliella tertiolecta cells are -0.63 and -0.75 microC/cm2 in 0.1 M NaCl and 1 M NaCl solutions, respectively.

cell surface charge density; Dunaliella tertiolecta; electrical double-layer charge compensation

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