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Integrated Ferroelectrics
An International Journal
Volume 154, 2014 - Issue 1: The 12th China International Nanoscience and Technology Symposium, Chengdu (2013)
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Original Article

Determination of Dopamine Using Self-Assembled Diazoresin/Graphene Modified Electrodes

Yi-Ying YangLaboratory for New Fiber Materials and Modern Textile, Growing Basis for State Key Laboratory, College of Chemical Engineering, Qingdao University, Qingdao266071, China
,
Bing YuLaboratory for New Fiber Materials and Modern Textile, Growing Basis for State Key Laboratory, College of Chemical Engineering, Qingdao University, Qingdao266071, China;Collaborative Innovation Center for Marine Biomass Fibers, Materials and Textiles of Shandong Province, Qingdao University, ChinaCorrespondence[email protected]
,
Hai-Lin CongLaboratory for New Fiber Materials and Modern Textile, Growing Basis for State Key Laboratory, College of Chemical Engineering, Qingdao University, Qingdao266071, China;Collaborative Innovation Center for Marine Biomass Fibers, Materials and Textiles of Shandong Province, Qingdao University, China
,
Tian-Zi HaoLaboratory for New Fiber Materials and Modern Textile, Growing Basis for State Key Laboratory, College of Chemical Engineering, Qingdao University, Qingdao266071, China
,
Jun LuLaboratory for New Fiber Materials and Modern Textile, Growing Basis for State Key Laboratory, College of Chemical Engineering, Qingdao University, Qingdao266071, China
,
Jin-Dou ZhangLaboratory for New Fiber Materials and Modern Textile, Growing Basis for State Key Laboratory, College of Chemical Engineering, Qingdao University, Qingdao266071, China
,
Hua YuanLaboratory for New Fiber Materials and Modern Textile, Growing Basis for State Key Laboratory, College of Chemical Engineering, Qingdao University, Qingdao266071, China
&
Li-Xin ZhangLaboratory for New Fiber Materials and Modern Textile, Growing Basis for State Key Laboratory, College of Chemical Engineering, Qingdao University, Qingdao266071, China
 show all
Pages 36-42 | Received 15 Jul 2013, Accepted 07 Feb 2014, Published online: 14 May 2014
 
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Abstract

Self-assembled ultrathin films of diazoresin (DR)/graphene (GR) were formed on thioglycollic acid (TGA) decorated gold (Au) electrodes by photo-crosslinking. The electrochemical behavior of dopamine (DA) at the DR/GR modified electrodes was studied using cyclic voltammetry (CV) and differential pulse voltammetry (DPV) methods. Under the optimal conditions, a sensitive DPV response to DA concentration was observed with the detection limit of 2.8 × 10−9 M. Moreover, the modified electrodes exhibited good reproducibility and sensitivity, demonstrating its feasibility for the analytical purpose.

Funding

This work is financially supported by the National Key Basic Research Development Program of China (973 special preliminary study plan, Grant 2012CB722705), the Natural Science Foundation of China (Grant 21344005, 21375069), the Fok Ying Tong Education Foundation (Grant 131045), the Scientific Research Foundation for the Returned Overseas Chinese Scholars of State Education Ministry (Grant 20111568), and the Science and Technology Program of Qingdao (Grant 1314159jch).

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