High performance smell sensor using spatially controlled LB films with polymer backbone

Seimei Sha Shiratori, Kazuki Kohno, Masayoshi Yamada

Research output: Contribution to journalConference article

17 Citations (Scopus)

Abstract

Lateral spacings of the molecules in the Langmuir-Blodgett (LB) films were controlled by introducing fullerene (C60) molecules as the spacers. The spatially controlled LB films were deposited on the electrode of a quartz crystal microbalance (QCM) and the adsorption characteristics of the gas molecules were studied. The permeability of the gas molecules into the film was higher when the molecular weight was lower or when the molecular size was smaller. This molecular sifter function was caused by the adsorption of the gas molecules not mainly to the spacer molecules but to the lipid molecules. In order to prevent the structural change caused by the desiccation of the films, polymer backbones were added to the membrane. The spatially controlled LB films with polymer backbone were found to be a novel smell sensor with a molecular sifter function and high durability.

Original languageEnglish
Pages (from-to)70-75
Number of pages6
JournalSensors and Actuators, B: Chemical
Volume64
Issue number1-3
DOIs
Publication statusPublished - 2000 Jun 10
EventTransducers '99 - 10th International Conference on Solid-State Sensors and Actuators - Sendai, Japan
Duration: 1999 Jun 71999 Jun 10

Keywords

  • Fullerene
  • Langmuir-Blodgett film
  • Molecular shifter
  • Molecular space
  • Polymer
  • Smell sensor

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

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