2013年3月
Amperometric biosensor based on reductive H2O2 detection using pentacyanoferrate-bound polymer for creatinine determination
ANALYTICA CHIMICA ACTA
- ,
- ,
- ,
- 巻
- 767
- 号
- 1
- 開始ページ
- 128
- 終了ページ
- 133
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.aca.2012.12.052
- 出版者・発行元
- ELSEVIER SCIENCE BV
Pentacyanoferrate-bound poly(1-vinylimidazole) (PVI[Fe(CN)(5)]) was selected as a mediator for ampermetric creatinine determination based on the reductive H2O2 detection. Creatinine amidohydrolase (CNH), creatine amidohydrolase (CRH), sarcosine oxidase (SOD), peroxidase (POD), and PVI[Fe(CN)5] were crosslinked with poly(ethylene glycol) diglycidyl ether (PEGDGE) on a glassy carbon (GC) electrode for a creatinine biosensor fabrication. Reduction current was monitored at -0.1 V in the presence of creatinine and O-2. It is revealed that PVI[Fe(CN)(5)] is suitable as a mediator for a bioelectrocatalytic reaction of POD, since PVI[Fe(CN())5] neither reacts with reactants nor works as an electron acceptor of SOD. The amounts of PVI[Fe(CN)(5)], PEGDGE, and enzymes were optimized toward creatinine detection. Nafion as a protecting film successfully prevented the enzyme layer from interferences. The detection limit and linear range in creatinine determination were 12 mu M and 12-500 mu M (R-2 = 0.993), respectively, and the sensitivity was 11 mA cm(-2) M-1, which is applicable for urine creatinine tests. The results of the creatinine determination for four urine samples measured with this proposed method were compared with Jaffe method, and a good correlation was obtained between the results. (C) 2013 Elsevier B.V. All rights reserved.
- リンク情報
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- DOI
- https://doi.org/10.1016/j.aca.2012.12.052
- J-GLOBAL
- https://jglobal.jst.go.jp/detail?JGLOBAL_ID=201302266492087763
- CiNii Articles
- http://ci.nii.ac.jp/naid/120005244221
- PubMed
- https://www.ncbi.nlm.nih.gov/pubmed/23452796
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000316440000016&DestApp=WOS_CPL
- ID情報
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- DOI : 10.1016/j.aca.2012.12.052
- ISSN : 0003-2670
- eISSN : 1873-4324
- J-Global ID : 201302266492087763
- CiNii Articles ID : 120005244221
- PubMed ID : 23452796
- Web of Science ID : WOS:000316440000016