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 nuC/cm(2) in 0.1 M NaCl and 1 M NaCl solutions, respectively.
Svetlicić
Vesna
V
Center for Marine and Environmental Research, Rudjer Bosković Institute, Zagreb, Croatia. svetlicic@rudjer.irb.hr
Hozić
Amela
A
D002462:Cell Membrane / Q000502:physiology* / Q000648:ultrastructure; D000460:Chlorophyta / Q000166:cytology / Q000502:physiology*; D004563:Electrochemistry / Q000379:methods; D004586:Electrophoresis / Q000379:methods; D004594:Electrophysiology / Q000379:methods; D008839:Microelectrodes