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Chitosan-Cross-linked Osmium Polymer Composites as an Efficient Platform for Electrochemical Biosensors
- Jirimali, Harishchandra Digambar;
- Nagarale, Rajaram Krishna;
- Lee, Jong Myung;
- Saravanakumar, Durai;
- Shin, Woonsup
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7초록
A new family of chitosan-cross-linked osmium polymer composites was prepared and its electrochemical properties were examined. The composites were prepared by quaternization of the poly(4-vinylpyridine) osmium bipyridyl polymer (PVP-Os) which was then cross-linked with chitosan, yielding PVP-Os/chitosan. Films made of the composites showed improved mass and electron transport owing to the porous and hydrophilic structure which is derived from the cross-links between the Os polymer and chitosan. The rate for glucose oxidation was enhanced four times when glucose oxidase (GOx) was immobilized on PVP-Os/chitosan compared immobilization on PVP-Os.
키워드
chitosan composites; electron transfer; glucose sensors; polymers; porous films; HYDROGEN-PEROXIDE BIOSENSOR; GLUCOSE BIOSENSOR; REDOX; ELECTRODE; ENZYMES; NANOCOMPOSITE; NANOPARTICLES; CATALYSIS; LINKING; LACCASE
- 제목
- Chitosan-Cross-linked Osmium Polymer Composites as an Efficient Platform for Electrochemical Biosensors
- 저자
- Jirimali, Harishchandra Digambar; Nagarale, Rajaram Krishna; Lee, Jong Myung; Saravanakumar, Durai; Shin, Woonsup
- 발행일
- 2013-07-22
- 유형
- Article
- 저널명
- ChemPhysChem
- 권
- 14
- 호
- 10
- 페이지
- 2232 ~ 2236