Ultra micro glutamate sensor using platinized carbon-fiber electrode and integrated counter electrode

Eiichi Tamiya; Yoko Sugiura; Toshifumi Takeuchi; Masayasu Suzuki; Isao Karube; Akitane Akiyama

doi:10.1016/0925-4005(93)87003-8

Ultra micro glutamate sensor using platinized carbon-fiber electrode and integrated counter electrode

Eiichi Tamiya^*, Yoko Sugiura, Toshifumi Takeuchi, Masayasu Suzuki, Isao Karube, Akitane Akiyama

^*Corresponding author for this work

Electric and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

An integrated ultra micro glutamate sensor has been constructed with a 7 μm diameter platinized carbon-fiber disk (PCD) electrode and a platinum thin-film (PTF) counter electrode fabricated on the glass capillary tube. By platinization, the electrode activity of the carbon fiber is improved. In order to obtain a stable response, a pulse potential is applied for hydrogen peroxide measurement. The PTF counter electrode shows good stability and can be used as a substitute for a silver-silver chloride electrode. Since the integrated PCD electrode shows good characteristics as a hydrogen peroxide sensor, glutamate oxidase is immobilized onto the tip of the PCD electrode to construct the ultra micro glutamate sensor. The sensor shows stable response to glutamate and a response time within 12 s. The calibration range for glutamate measurement is 50-800 μM.

Original language	English
Pages (from-to)	179-184
Number of pages	6
Journal	Sensors and Actuators, B: Chemical
Volume	10
Issue number	3
DOIs	https://doi.org/10.1016/0925-4005(93)87003-8
State	Published - 1993/02

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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title = "Ultra micro glutamate sensor using platinized carbon-fiber electrode and integrated counter electrode",

abstract = "An integrated ultra micro glutamate sensor has been constructed with a 7 μm diameter platinized carbon-fiber disk (PCD) electrode and a platinum thin-film (PTF) counter electrode fabricated on the glass capillary tube. By platinization, the electrode activity of the carbon fiber is improved. In order to obtain a stable response, a pulse potential is applied for hydrogen peroxide measurement. The PTF counter electrode shows good stability and can be used as a substitute for a silver-silver chloride electrode. Since the integrated PCD electrode shows good characteristics as a hydrogen peroxide sensor, glutamate oxidase is immobilized onto the tip of the PCD electrode to construct the ultra micro glutamate sensor. The sensor shows stable response to glutamate and a response time within 12 s. The calibration range for glutamate measurement is 50-800 μM.",

author = "Eiichi Tamiya and Yoko Sugiura and Toshifumi Takeuchi and Masayasu Suzuki and Isao Karube and Akitane Akiyama",

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AU - Tamiya, Eiichi

AU - Sugiura, Yoko

AU - Takeuchi, Toshifumi

AU - Suzuki, Masayasu

AU - Karube, Isao

AU - Akiyama, Akitane

PY - 1993/2

Y1 - 1993/2

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AB - An integrated ultra micro glutamate sensor has been constructed with a 7 μm diameter platinized carbon-fiber disk (PCD) electrode and a platinum thin-film (PTF) counter electrode fabricated on the glass capillary tube. By platinization, the electrode activity of the carbon fiber is improved. In order to obtain a stable response, a pulse potential is applied for hydrogen peroxide measurement. The PTF counter electrode shows good stability and can be used as a substitute for a silver-silver chloride electrode. Since the integrated PCD electrode shows good characteristics as a hydrogen peroxide sensor, glutamate oxidase is immobilized onto the tip of the PCD electrode to construct the ultra micro glutamate sensor. The sensor shows stable response to glutamate and a response time within 12 s. The calibration range for glutamate measurement is 50-800 μM.

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Ultra micro glutamate sensor using platinized carbon-fiber electrode and integrated counter electrode

Abstract

ASJC Scopus subject areas

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