Probing cell surface charge by scanning electrode potential |
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Authors: | Svetlicić Vesna Hozić Amela |
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Institution: | Center for Marine and Environmental Research, Rudjer Boskovi? Institute, Zagreb, Croatia. svetlicic@rudjer.irb.hr |
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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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