title: Properties of galactocerebroside layers transferred to glassy carbon electrodes: effect of an applied electric field.
abstract: 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.
authors.affiliation: Centro de Investigaciones en Química Biológica de Córdoba (CIQuiBiC), Departamento Química Biológica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, 5000 Córdoba, Argentina. wilke@mail.fcq.unc.edu.ar
authors.forename: N
authors.initials: N
authors.lastname: Wilke
authors.forename: A M
authors.initials: AM
authors.lastname: Baruzzi
authors.forename: B
authors.initials: B
authors.lastname: Maggio
authors.forename: M A
authors.initials: MA
authors.lastname: Pérez
authors.forename: M López
authors.initials: ML
authors.lastname: Teijelo
mesh_terms: D002244:Carbon / Q000737:chemistry*; D004560:Electricity; D004563:Electrochemistry / Q000295:instrumentation / Q000379:methods*; D004566:Electrodes; D005699:Galactosylceramides / Q000737:chemistry*; D008563:Membrane Lipids / Q000737:chemistry*; D008856:Microscopy, Fluorescence; D010084:Oxidation-Reduction; D012031:Refractometry
chemical_list: D005699:Galactosylceramides; D008563:Membrane Lipids; C002454:galactocerebroside; D002244:Carbon