Potential response of monolayer-modified indium tin oxide electrodes to indole compounds

Takuya Nakanishi, Tsubasa Ueno, Mariko Matsunaga, Md Zaved Hossain Khan, Tetsuya Osaka

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Potential response of indium tin oxide (ITO) electrode modified by treatment with disuccinimidyl suberate (DSS) was investigated to various target molecules. Distinctively, the DSS-modified ITO electrode exhibited a potential shift to the molecules possessing an indole group such as tryptophan, tryptamine and indole propionic acid, while little response to benzoic acid, phenylalanine, proline, proline amide, and arginine was observed. In addition, the combination of this specificity to indoles and enantioselective affinity of human serum albumin (HSA), which was additionally immobilized on the DSS-modified ITO electrode, brought about enantioselective potential response to tryptophan.

Original languageEnglish
Pages (from-to)393-398
Number of pages6
JournalElectroanalysis
Volume22
Issue number4
DOIs
Publication statusPublished - 2010 Feb

Fingerprint

Tin oxides
Indium
Monolayers
Proline
Tryptophan
Electrodes
Indoles
Propionic acid
Arginine
Molecules
Benzoic Acid
Benzoic acid
Phenylalanine
Amides
Serum Albumin
indole
disuccinimidyl suberate
indium tin oxide

Keywords

  • Chiral sensors
  • Indium tin oxide
  • Indole compounds
  • Monolayer modification
  • Potentiometric detection
  • Sensors

ASJC Scopus subject areas

  • Analytical Chemistry
  • Electrochemistry

Cite this

Potential response of monolayer-modified indium tin oxide electrodes to indole compounds. / Nakanishi, Takuya; Ueno, Tsubasa; Matsunaga, Mariko; Khan, Md Zaved Hossain; Osaka, Tetsuya.

In: Electroanalysis, Vol. 22, No. 4, 02.2010, p. 393-398.

Research output: Contribution to journalArticle

Nakanishi, Takuya ; Ueno, Tsubasa ; Matsunaga, Mariko ; Khan, Md Zaved Hossain ; Osaka, Tetsuya. / Potential response of monolayer-modified indium tin oxide electrodes to indole compounds. In: Electroanalysis. 2010 ; Vol. 22, No. 4. pp. 393-398.
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