High-sensitivity urea sensor based on the composite film of electroinactive polypyrrole with polyion complex

Tetsuya Osaka; Shinichi Komaba; Michiko Seyama; Katsuhisa Tanabe

doi:10.1016/S0925-4005(97)80114-1

High-sensitivity urea sensor based on the composite film of electroinactive polypyrrole with polyion complex

Tetsuya Osaka^*, Shinichi Komaba, Michiko Seyama, Katsuhisa Tanabe

^*この研究の対応する著者

ナノ・ライフ創新研究機構

研究成果: Article › 査読

62 被引用数 (Scopus)

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A high-sensitivity urea sensor consisting of the composite film of electropolymerized electroinactive polypyrrole (PPy) with the polyion complex containing urease (Urs) was fabricated. This sensor showed potential response to urea within 20 s by detection of pH change during enzymatic reaction with a pH-sensitive electroinactive PPy. The urea response became higher with the slope of 110 mV decade^-1. This high sensitivity was attributed to the effective immobilization of the large number of Urs by electropolymerization on the electrode pre-coated with polyion complex.

本文言語	English
ページ（範囲）	463-469
ページ数	7
ジャーナル	Sensors and Actuators, B: Chemical
巻	36
号	1-3
DOI	https://doi.org/10.1016/S0925-4005(97)80114-1
出版ステータス	Published - 1996 10月

ASJC Scopus subject areas

電子材料、光学材料、および磁性材料
器械工学
凝縮系物理学
表面、皮膜および薄膜
金属および合金
電子工学および電気工学
材料化学

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10.1016/S0925-4005(97)80114-1

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title = "High-sensitivity urea sensor based on the composite film of electroinactive polypyrrole with polyion complex",

abstract = "A high-sensitivity urea sensor consisting of the composite film of electropolymerized electroinactive polypyrrole (PPy) with the polyion complex containing urease (Urs) was fabricated. This sensor showed potential response to urea within 20 s by detection of pH change during enzymatic reaction with a pH-sensitive electroinactive PPy. The urea response became higher with the slope of 110 mV decade-1. This high sensitivity was attributed to the effective immobilization of the large number of Urs by electropolymerization on the electrode pre-coated with polyion complex.",

keywords = "Biosensor, Electropolymerization, Polyion complex, Polypyrrole, Urea sensor",

author = "Tetsuya Osaka and Shinichi Komaba and Michiko Seyama and Katsuhisa Tanabe",

note = "Funding Information: This work was financially supported by both a Grant-in-Aid for Scientific Research on Priority Areas No. 236 and a Grant-in-Aid for Encouragement of Young Scientists, the Ministry of Education and Culture of Japan.",

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doi = "10.1016/S0925-4005(97)80114-1",

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AU - Osaka, Tetsuya

AU - Komaba, Shinichi

AU - Seyama, Michiko

AU - Tanabe, Katsuhisa

N1 - Funding Information: This work was financially supported by both a Grant-in-Aid for Scientific Research on Priority Areas No. 236 and a Grant-in-Aid for Encouragement of Young Scientists, the Ministry of Education and Culture of Japan.

PY - 1996/10

Y1 - 1996/10

N2 - A high-sensitivity urea sensor consisting of the composite film of electropolymerized electroinactive polypyrrole (PPy) with the polyion complex containing urease (Urs) was fabricated. This sensor showed potential response to urea within 20 s by detection of pH change during enzymatic reaction with a pH-sensitive electroinactive PPy. The urea response became higher with the slope of 110 mV decade-1. This high sensitivity was attributed to the effective immobilization of the large number of Urs by electropolymerization on the electrode pre-coated with polyion complex.

AB - A high-sensitivity urea sensor consisting of the composite film of electropolymerized electroinactive polypyrrole (PPy) with the polyion complex containing urease (Urs) was fabricated. This sensor showed potential response to urea within 20 s by detection of pH change during enzymatic reaction with a pH-sensitive electroinactive PPy. The urea response became higher with the slope of 110 mV decade-1. This high sensitivity was attributed to the effective immobilization of the large number of Urs by electropolymerization on the electrode pre-coated with polyion complex.

KW - Biosensor

KW - Electropolymerization

KW - Polyion complex

KW - Polypyrrole

KW - Urea sensor

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High-sensitivity urea sensor based on the composite film of electroinactive polypyrrole with polyion complex

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