Crown ethers as sensory materials in chemical measurements: Interfaces for chemical signal transformation

Makoto Takagi, Koji Nakano, Naotoshi Nakashima

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Transformation of chemical signals into electric signals is one of the essential processes in modern chemical measurements. Compounds designed on host-guest consideration can be used as key material in developing an interface or a transducer for such signal transformation devices. The concept of chemical transducer or interface is presented with examples which use crown ether derivatives as sensory host compounds. Crown ether derivatives equipped with ion-recognition part (crown ether) and signal transformation part (chromophore) are developed for extraction photometry of mono- and di-valent metal ions. Synthetic, chiral molecular bilayer membranes which show peculiar circular dichroism are used as a transducer of ion-recognition signals which are produced by crown ether ionophores doped in the membranes. Crown ether polymer-coated electrodes give an interface which interacts with alkali metal ions and produces a change in its dielectric property, which can then be picked up as an electrical signal by impedance measurement in an alternating current circuit.

Original languageEnglish
Pages (from-to)1605-1612
Number of pages8
JournalPure and Applied Chemistry
Volume61
Issue number9
DOIs
Publication statusPublished - Jan 1 1989

Fingerprint

Crown Ethers
Crown ethers
Transducers
Metal ions
Ions
Ionophores
Alkali Metals
Derivatives
Membranes
Photometry
Dichroism
Alkali metals
Chromophores
Dielectric properties
Polymers
Electrodes
Networks (circuits)

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Crown ethers as sensory materials in chemical measurements : Interfaces for chemical signal transformation. / Takagi, Makoto; Nakano, Koji; Nakashima, Naotoshi.

In: Pure and Applied Chemistry, Vol. 61, No. 9, 01.01.1989, p. 1605-1612.

Research output: Contribution to journalArticle

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