Directed Self-Assembly of Gold Nanoparticles on Graphene-Ionic Liquid Hybrid for Enhancing Electrocatalytic Activity

被引：49
|
作者：
Yang, Min Ho [3 ]
Choi, Bong Gill [3 ]
Park, HoSeok [4 ]
Park, Tae Jung [1 ,2 ]
Hong, Won Hi [3 ]
Lee, Sang Yup [1 ,2 ,3 ,5 ,6 ]
机构：
[1] Korea Adv Inst Sci & Technol, BioProc Engn Res Ctr, Ctr Syst & Synthet Biotechnol, Taejon 305701, South Korea
[2] Korea Adv Inst Sci & Technol, Inst BioCentury, Taejon 305701, South Korea
[3] Korea Adv Inst Sci & Technol, Dept Chem & Biomol Engn, Program BK21, Taejon 305701, South Korea
[4] Kyung Hee Univ, Dept Chem Engn, Coll Engn, Youngin Si 446701, Gyeonggi Do, South Korea
[5] Korea Adv Inst Sci & Technol, Dept Bio & Brain Engn, Dept Biol Sci, Taejon 305701, South Korea
[6] Korea Adv Inst Sci & Technol, Bioinformat Res Ctr, Taejon 305701, South Korea
来源：
ELECTROANALYSIS | 2011年 / 23卷 / 04期
基金：
新加坡国家研究基金会;
关键词：
Graphene; Glucose biosensor; Au nanoparticle; Ionic liquid; Electrochemistry; SONOCHEMICAL SYNTHESIS; GLUCOSE-OXIDASE; HYDROGEN-PEROXIDE; BIOSENSORS; ELECTRODE; ENZYMES; NANOCOMPOSITE; NANOTUBES; SENSORS;
D O I：
10.1002/elan.201000645
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The effects of introducing gold (Au) nanoparticles (NP) on the electrochemical properties of graphene functionalized with ionic liquid were investigated by cyclic voltammetry, amperometry, and AC impedance analysis. The introduction of Au NPs onto graphene-ionic liquid sheets led to enhanced electron transfer rate, low charge transfer resistance, and large electrocatalytic area. An electrochemical biosensor device based on the hybrid of Au NPs and functionalized graphenes was fabricated and found to have superior electrochemical performance in the detection of glucose, with a sensitivity of 0.16 mu A mM(-1), a detection limit of 0.13 mM, and a response time of 5 s.
引用
收藏
页码：850 / 857
页数：8
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