Photocurable membranes for ion-selective light-addressable potentiometric sensor

Yu Ermolenko, T. Yoshinobu, Yu Mourzina, S. Levichev, K. Furuichi, Yu Vlasov, M. J. Schöning, H. Iwasaki

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)

Abstract

A new type of light-addressable potentiometric sensor (LAPS) has been developed by elaboration of photocurable ion-sensitive membranes based on matrices of mono- and diacrylates in combination with a silicon-based electrochemical transducer for the purposes of chemical and biochemical analyses. The characteristics of the elaborated K-, Li-, Cs-, Ca- and Mg-LAPS are presented to indicate the potential of the technology developed. For example, the sensitivities of the K- and Li-LAPS were found to be 58 ± 1 mV/pK and 59 ± 1 mV/pLi, respectively, over concentration ranges of 10-5-10-1 mol/l. The detection limits were evaluated to be 2 × 10-6 mol/l of the primary ion.

Original languageEnglish
Pages (from-to)79-85
Number of pages7
JournalSensors and Actuators, B: Chemical
Volume85
Issue number1-2
DOIs
Publication statusPublished - 2002 Jun 20

Keywords

  • Ion-sensitivity
  • Light-addressable potentiometric sensor (LAPS)
  • Photocurable membranes

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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