Properties of galactocerebroside layers transferred to glassy carbon electrodes: effect of an applied electric field.

N. WILKE; A.M. BARUZZI; B. MAGGIO; M.A. PEREZ; M. LOPEZ TEIJELO

COLLOIDS AND SURFACES B-BIOINTERFACES

Elsevier

Año: 2005 vol. 41 p. 223 - 223

0927-7765

font size="1" face="Times New Roman"> Galactocerebroside films deposited onto glassy carbon electrodes have been previously studied through the electrochemical response of a redox couple present in solution. Those experiments indicated that the film is inhomogeneous and that there are lipid-free places. In this work, we present experimental results indicating that those bare regions are formed when the electrode is introduced in an aqueous solution, and that the size and/or amount of uncovered domains increase when negative potentials are applied to the film. The experimental techniques employed for these findings are epifluorescence microscopy and ellipsometry.