Polymer chip incorporated with anionic surfactant-ISFET for microflow analysis of anionic surfactants

Takashi Masadome, Shohei Kugoh, Mayumi Ishikawa, Erika Kawano, Shin Ichi Wakida

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

An anionic surfactant ion-sensitive field-effect transistor (anionic surfactant-FET) based on a hydrophobic quaternary ammonium salt, tetrahexadecylammonium bromide was developed. The anionic surfactant-FET shows an almost Nernstian response to sodium dodecylbenzenesulfonate (NaDBS) ion in the concentration range from 1.0 × 10-6 to 1.0 × 10 -3 M with a slope of 56.6 ± 3.3 mV/decade. The anionic surfactant-FET can be used in pH range of pH 3-10. The anionic surfactant-FET shows excellently selective for the DBS- ion over small inorganic anions, but shows the similar selectivity to other anionic surfactants such as tetradecylsulfate and dodecylsulfate ions. The anionic surfactant-FET in a batch system and the two channel microchip incorporated with anionic surfactant-ISFET showed almost the similar performance in low detection limits, dynamic range of the calibration curve, the slope sensitivity and the stability of the potential response. From the results, the polymer-based microchip incorporated with ISFET, which is fabricated using polystyrene plates and stainless wires as a template of channel, can be useful in various kinds of applications for microflow analysis.

Original languageEnglish
Pages (from-to)888-892
Number of pages5
JournalSensors and Actuators, B: Chemical
Volume108
Issue number1-2 SPEC. ISS.
DOIs
Publication statusPublished - 2005 Jul 22

Fingerprint

Ion sensitive field effect transistors
Anionic surfactants
Polymers
surfactants
chips
polymers
field effect transistors
ions
Ions
direct broadcast satellites
slopes
Polystyrenes
Bromides
Ammonium Compounds
Anions
Negative ions
dynamic range
Salts
bromides
Sodium

Keywords

  • Anionic surfactant sensor
  • Ion-sensitive field-effect transistor (ISFET)
  • Polymer-based microchip
  • Polystyrene
  • Small diameter wire

ASJC Scopus subject areas

  • Analytical Chemistry
  • Electrochemistry
  • Electrical and Electronic Engineering

Cite this

Polymer chip incorporated with anionic surfactant-ISFET for microflow analysis of anionic surfactants. / Masadome, Takashi; Kugoh, Shohei; Ishikawa, Mayumi; Kawano, Erika; Wakida, Shin Ichi.

In: Sensors and Actuators, B: Chemical, Vol. 108, No. 1-2 SPEC. ISS., 22.07.2005, p. 888-892.

Research output: Contribution to journalArticle

Masadome, Takashi ; Kugoh, Shohei ; Ishikawa, Mayumi ; Kawano, Erika ; Wakida, Shin Ichi. / Polymer chip incorporated with anionic surfactant-ISFET for microflow analysis of anionic surfactants. In: Sensors and Actuators, B: Chemical. 2005 ; Vol. 108, No. 1-2 SPEC. ISS. pp. 888-892.
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