Properties of Galactocerebroside Langmuir-Blodgett Films: Effect of an applied Electric Field?.

N. WILKE, A. M. BARUZZI, B. MAGGIO, M. A. PÉREZ AND M. LÓPEZ TEIJELO.

JOURNAL OF COLLOID AND INTERFACE SCIENCE

Año: 2005 vol. 41 p. 223 - 223

0021-9797

alactocerebroside 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 techniquesemployed for these findings are epifluorescence microscopy and ellipsometry.