Ion-sensitive and selective active waveguide optodes

Hideaki Hisamoto, Kim Kyung-Ho, Yukiko Manabe, Keisuke Sasaki, Haruyuki Minamitani, Koji Suzuki

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

A novel polymer waveguide (active waveguide) type optode possessing the advantages of both selective analyte determination and optical signal propagation was developed. The noteworthy concept of this active waveguide is the integration of plural functions into the planar waveguide itself, such as molecular recognition, color change, and light propagation, In order to demonstrate this concept, the analyte sensing layer is utilized as the light propagating layer. An ion-selective optode membrane consisting of a plasticized poly(vinylchloride) (PVC) membrane containing a neutral ionophore and a color changeable lipophilic anionic dye was used as the planar active waveguide sensing layer. The principle of the response of this active waveguide is based on the measurement of the output light signal intensity in which this light is propagated through the color changeable PVC membrane phase, and its intensity is decreased by interaction with the analyte ions. In this report, calcium and sodium ion-sensitive waveguides were prepared based on our developed neutral ionophores. Comparison of the experimental responses between the novel active waveguide optode and a commonly utilized conventional waveguide optode based on evanescent wave spectrometry demonstrated that the sensitivity of the active waveguide optode is obviously greater than that of the conventional waveguide optode. This concept of an active waveguide fully demonstrates the advantageous property of a planar waveguide with respect to highly sensitive and selective optical chemical sensing.

Original languageEnglish
Pages (from-to)31-39
Number of pages9
JournalAnalytica Chimica Acta
Volume342
Issue number1
DOIs
Publication statusPublished - 1997 Apr 21

Fingerprint

Waveguides
Ions
Light
ion
Color
Ionophores
membrane
Polyvinyl Chloride
Membranes
spectrometry
Planar waveguides
Spectrum Analysis
dye
Polymers
Coloring Agents
polymer
Sodium
calcium
sodium
Calcium

Keywords

  • Attenuated total reflection
  • Polymer waveguide type optode
  • Sensors

ASJC Scopus subject areas

  • Biochemistry
  • Analytical Chemistry
  • Spectroscopy
  • Environmental Chemistry

Cite this

Hisamoto, H., Kyung-Ho, K., Manabe, Y., Sasaki, K., Minamitani, H., & Suzuki, K. (1997). Ion-sensitive and selective active waveguide optodes. Analytica Chimica Acta, 342(1), 31-39. https://doi.org/10.1016/S0003-2670(96)00550-8

Ion-sensitive and selective active waveguide optodes. / Hisamoto, Hideaki; Kyung-Ho, Kim; Manabe, Yukiko; Sasaki, Keisuke; Minamitani, Haruyuki; Suzuki, Koji.

In: Analytica Chimica Acta, Vol. 342, No. 1, 21.04.1997, p. 31-39.

Research output: Contribution to journalArticle

Hisamoto, H, Kyung-Ho, K, Manabe, Y, Sasaki, K, Minamitani, H & Suzuki, K 1997, 'Ion-sensitive and selective active waveguide optodes', Analytica Chimica Acta, vol. 342, no. 1, pp. 31-39. https://doi.org/10.1016/S0003-2670(96)00550-8
Hisamoto H, Kyung-Ho K, Manabe Y, Sasaki K, Minamitani H, Suzuki K. Ion-sensitive and selective active waveguide optodes. Analytica Chimica Acta. 1997 Apr 21;342(1):31-39. https://doi.org/10.1016/S0003-2670(96)00550-8
Hisamoto, Hideaki ; Kyung-Ho, Kim ; Manabe, Yukiko ; Sasaki, Keisuke ; Minamitani, Haruyuki ; Suzuki, Koji. / Ion-sensitive and selective active waveguide optodes. In: Analytica Chimica Acta. 1997 ; Vol. 342, No. 1. pp. 31-39.
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