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小木虫论坛-学术科研互动平台 » 化学化工区 » 电化学 » 电化学传感器 » JMC 关于石墨烯-DNA
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hejin04c

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[资源] JMC 关于石墨烯-DNA

Journal of
Materials Chemistry
Cite this: J. Mater. Chem., 2011, 21, 12873
DNA as a linker for biocatalytic deposition of Au nanoparticles on graphene
and its application in glucose detection
Jianbin Zheng,*Yaping He, Qinglin Sheng and Hongfang Zhang
Taking advantages of the striking properties of both self-assembly and biocatalysis, a highly sensitive glucose electrochemical biosensor was proposed by using DNA–GE as biocatalysis target-guide to deposit Au nanoparticles (AuNPs). AuNPs interacted with thiol and amino groups of DNA strands, which make the reaction much easier and faster. Furthermore, the proposed AuNPs/glucose oxidase (GOx)/DNA–GE/glassy carbon (GC) modified electrode achieved the direct electrochemistry and electrocatalysis of GOx. The growth of AuNPs was confirmed by scanning electron microscopy and electrochemical methods. The characterizations of the electrode modified after each assembly step and the content of AuNPs on the electrode surfaces during the growth process were investigated by cyclic voltammetry. The amount of AuNPs was relative to the amount of glucose oxidized accompanying with the biocatalytic process of GOx. The biosensor showed a linearity with glucose concentration in the range of 0.8–50 mM with a detection limit of 0.3 mM (S/N ¼ 3). The sensitivity was 2.4  10 4 mA mM 1 . The combination of self-assembly and biocatalysis offers the new design of enzymatic biosensors with potential applications in direct electrochemistry and biocatalysis.
希望做传感器的大家相互多交流呀[ Last edited by hejin04c on 2011-9-24 at 09:07 ]
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1楼 2011-09-05 10:49:12
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dudup2237

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瞻仰一下成功人士
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9楼2011-09-08 10:34:51
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摩托女郎

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hejin04c: 呵呵，老板第一 2011-09-19 19:49:19
你怎么没捞着第一作者啊
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6楼2011-09-07 17:34:22
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qib219

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学习一下，正好方向差不多啊
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10楼2011-09-09 10:30:40
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whychen

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hejin04c: 牛 2011-09-09 22:02:13
RESEARCH ARTICLE
Assessing the potential exposure risk and control
for airborne titanium dioxide and carbon black
nanoparticles in the workplace
Min-Pei Ling & Chia-Pin Chio & Wei-Chun Chou &
Wei-Yu Chen & Nan-Hung Hsieh & Yi-Jun Lin &
Chung-Min Liao
Received: 26 October 2010 /Accepted: 7 January 2011 /Published online: 28 January 2011
# Springer-Verlag 2011
Environ Sci Pollut Res (2011) 18:877–889
DOI 10.1007/s11356-011-0447-y
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11楼2011-09-09 21:08:33
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zdw04484楼
2011-09-05 22:40   回复  
顶一下，感谢分享！
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2011-09-06 16:52   回复  
五星好评  顶一下，感谢分享！
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2011-09-07 20:03   回复  
五星好评  顶一下，感谢分享！
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2011-09-10 08:39   回复  
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2011-09-10 08:51   回复  
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2011-09-10 09:31   回复  
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