title: Controlling the electrochemically active area of carbon fiber microelectrodes by the electrodeposition and selective removal of an insulating photoresist.
abstract: A new and simple method permits control of the electrochemically active area of a carbon fiber microelectrode. An electrophoretic photoresist insulates the 10-microm-diameter carbon fiber microelectrodes. Photolysis of the photoresist followed by immersion of the exposed area into a developing solution reveals electroactive carbon fiber surface. The electroactive surface area exposed can be controlled with a good degree of reproducibility.
authors.affiliation: Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, 603 Chevron Science Center, Pittsburgh, Pennsylvania 15260, USA.
authors.forename: Bradley A
authors.initials: BA
authors.lastname: Lambie
authors.forename: Owe
authors.initials: O
authors.lastname: Orwar
authors.forename: Stephen G
authors.initials: SG
authors.lastname: Weber
mesh_terms: D002244:Carbon / Q000737:chemistry*; D000077482:Carbon Fiber; D004563:Electrochemistry; D004595:Electroplating / Q000379:methods*; D005295:Ferrocyanides / Q000737:chemistry; D008027:Light; D008839:Microelectrodes; D010777:Photochemistry
chemical_list: D000077482:Carbon Fiber; D005295:Ferrocyanides; D002244:Carbon; C020354:hexacyanoferrate II