Ag/AgCl/PDA-rGO无酶葡萄糖传感器的构建
Non-enzymatic glucose biosensor based on Ag/AgCl/Polydopamine-Graphene composite
查看参考文献17篇
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文摘
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利用多巴胺的自聚性能及还原性,采用一步法制备聚多巴胺/银复合物修饰的还原石墨烯复合纳米材料.采用的工作电极是玻碳电极,将制备的复合纳米材料滴涂在其表面,构建了无酶葡萄糖电化学传感器(Ag/AgCl/PDA-rGO).材料的结构和组成借助X射线衍射、拉曼光谱等仪器进行了表征和分析,表明本方法成功地将聚多巴胺和银复合物均匀地负载于还原石墨烯的表面,同时通过调节反应时间,改变和控制Ag/AgCl/PDA-rGO材料中聚多巴胺和银复合物的负载量.此外,使用交流阻抗技术和循环伏安法分析和研究了Ag/AgCl/PDArGO修饰电极的电化学性能.试验结果表明,Ag/AgCl/PDA-rGO构建的无酶葡萄糖传感器在葡萄糖浓度为5~9 mmol/L时,线性关系良好. |
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其他语种文摘
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According to self-polymerization property of dopamine and reductibility,polydopamine/silver composite/graphene was synthesized in one step.In addition,the graphene compound fixing on the surface of glassy carbon electron as a working electrode was used to construct a non-enzymatic glucose sensor.With a series of characterization methods such as X-ray power diffraction (XRD) and Raman spectrum,polydopamine/silver composite/graphene is synthesized successfully.Further,concentration of polydopamine/silver composite can be controlled by the reactive time.Electrochemical performance was tested with electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV).The biosensor has shown a good linear relationship under the condition that concentration of glucose is between 5 mmol/L and 9 mmol/L. |
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来源
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上海大学学报. 自然科学版
,2019,25(6):943-949 【扩展库】
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DOI
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10.12066/j.issn.1007-2861.1947
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关键词
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氧化石墨烯
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多巴胺
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银
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葡萄糖传感器
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地址
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1.
上海大学生命科学学院, 上海, 200444
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上海大学环境与化学工程学院, 上海, 200444
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1007-2861 |
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学科
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自动化技术、计算机技术 |
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文献收藏号
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CSCD:6638348
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