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Updated: Sep 29, 2026

Scanning-probe Single-electron Capacitance Spectroscopy
Published on: July 30, 2013
Probing cell surface charge by scanning electrode potential
1Center for Marine and Environmental Research, Rudjer Bosković Institute, Zagreb, Croatia. svetlicic@rudjer.irb.hr
Abstract:
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 nuC/cm(2) in 0.1 M NaCl and 1 M NaCl solutions, respectively.
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