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题名: Hemin functionalized graphene nanosheets-based dual biosensor platforms for hydrogen peroxide and glucose
作者: Guo YJ ; Li J ; Dong SJ
刊名: SENSORS AND ACTUATORS B-CHEMICAL
出版日期: 2011
卷号: 160, 期号:1, 页码:295-300
关键词: GLASSY-CARBON ELECTRODE ; HORSERADISH-PEROXIDASE ; NONCOVALENT FUNCTIONALIZATION ; DIRECT ELECTROCHEMISTRY ; SENSOR ; FILMS ; PORPHYRIN ; WATER ; OXIDE ; NANOPARTICLES
通讯作者: Dong SJ
中文摘要: In this paper, we present dual biosensor platforms based on hemin functionalized graphene nanosheets (H-GNs). The nanomaterial combines the features of both graphene (high conductivity and surface area) and hemin (excellent catalysis and intrinsic peroxidase-like activity). It not only shows excellent electrocatalysis of the reduction of H(2)O(2) but also exhibits intrinsic peroxidase-like activity that can catalyze H(2)O(2) to oxidize 3,3,5,5-tetramethylbenzidine (TMB) to produce a blue color reaction. Based on these properties, the simple, economical, and highly sensitive amperometric and colorimetric biosensors for H(2)O(2) and glucose have been developed. The linear relationships for H(2)O(2) and glucose were obtained from 0.5 mu M to 0.4 mM and 0.05 mu M to 0.5 mM by amperometric and colorimetric methods, respectively. The detection limits for H(2)O(2) and glucose reached to 0.2 mu M and 0.3 mu M by amperometric method. By colorimetric methods, the detection limits for H(2)O(2) and glucose were as low as 20 nM and 30 nM, respectively. The rapid, simple and sensitive sensing platform showed great promising applications in the pharmaceutical, clinical and industrial detection of v and glucose. (C) 2011 Elsevier B.V. All rights reserved.
收录类别: SCI收录期刊论文
语种: 英语
WOS记录号: WOS:000298768100042
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内容类型: 期刊论文
URI标识: http://ir.ciac.jl.cn/handle/322003/44170
Appears in Collections:长春应用化学研究所知识产出_期刊论文

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Guo YJ;Li J;Dong SJ.Hemin functionalized graphene nanosheets-based dual biosensor platforms for hydrogen peroxide and glucose,SENSORS AND ACTUATORS B-CHEMICAL,2011,160(1):295-300
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