When the thickness of monolayer membranes formed by bolaform archaeal lipids is reduced to the approximate length of two valinomycin molecules, the zero-current conductance does not show any more a linear dependence on valinomycin concentration; instead, a quadratic behaviour is observed. This suggests that a dimer permeation pore is formed and therefore the conduction mechanism changes from carrier to channel.

Valinomycin acts as a channel in ultrathin lipid membranes

GLIOZZI, ALESSANDRA;ROBELLO, MAURO;RELINI, ANNALISA;
1996

Abstract

When the thickness of monolayer membranes formed by bolaform archaeal lipids is reduced to the approximate length of two valinomycin molecules, the zero-current conductance does not show any more a linear dependence on valinomycin concentration; instead, a quadratic behaviour is observed. This suggests that a dimer permeation pore is formed and therefore the conduction mechanism changes from carrier to channel.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11567/190332
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