title: Fabrication and characterization of polymer insulated carbon nanotube modified electrochemical nanoprobes.
abstract: Electrochemical nanoprobes were fabricated from polymer insulated multiwalled carbon nanotube modified tapping mode atomic force microscope probes. An electrochemically active length of carbon nanotube was exposed by laser ablation of the insulating polymer. Characterization of these probes is done by cyclic voltammetry of ferrocenemethanol in an aqueous solution and by finite element analysis. The fabricated nanoelectrodes were found to be stable and yielded an interfacial electron transfer rate constant (k(0)) of 1.073 +/- 0.36 cm s(-1) for ferrocenemethanol.
authors.affiliation: LION, Leiden University, Niels Bohrweg 2, 2333CA, Leiden, The Netherlands.
authors.forename: Amol V
authors.initials: AV
authors.lastname: Patil
authors.forename: Anne F
authors.initials: AF
authors.lastname: Beker
authors.forename: Frank G M
authors.initials: FG
authors.lastname: Wiertz
authors.forename: Hendrik A
authors.initials: HA
authors.lastname: Heering
authors.forename: Giacomo
authors.initials: G
authors.lastname: Coslovich
authors.forename: Rifka
authors.initials: R
authors.lastname: Vlijm
authors.forename: Tjerk H
authors.initials: TH
authors.lastname: Oosterkamp
mesh_terms: D055664:Electrochemical Techniques; D004566:Electrodes; D004579:Electron Transport; D005296:Ferrous Compounds / Q000737:chemistry; D018625:Microscopy, Atomic Force; D037742:Nanotubes, Carbon / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*
chemical_list: D005296:Ferrous Compounds; D037742:Nanotubes, Carbon; D011108:Polymers; C071550:ferrocenemethanol