Amperometric nitric oxide microsensor using two-dimensional cross-linked Langmuir-Blodgett films of polysiloxane copolymer

Dai Kato, Masashi Kunitake, Matsuhiko Nishizawa, Tomokazu Matsue, Fumio Mizutani

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

An amperometric nitric oxide (NO)-sensing microelectrode was constructed using two-dimensional (2D) cross-linked Langmuir-Blodgett (LB) films of siloxane copolymer as permselective membranes in order to block other electroactive interfering species. The 2D cross-linked siloxane LB films deposited on platinum micro-disc electrodes (10 μm in diameter) were highly effective in the elimination of the interfering responses (e.g., the ratio of current response for dopamine on the modified electrode to that on the bare electrode, less than 10-4). Furthermore, high sensitivity to NO (detection limit, 40 nM) was also remained with modified LB films consisting of monolayers.

Original languageEnglish
Pages (from-to)384-388
Number of pages5
JournalSensors and Actuators, B: Chemical
Volume108
Issue number1-2 SPEC. ISS.
DOIs
Publication statusPublished - 2005 Jul 22

Keywords

  • Langmuir-Blodgett film
  • Microsensor
  • Nitric oxide
  • Polysiloxane
  • Selective permeation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Amperometric nitric oxide microsensor using two-dimensional cross-linked Langmuir-Blodgett films of polysiloxane copolymer'. Together they form a unique fingerprint.

Cite this