{"title":"Enzyme-free electroreduction of hydrogen peroxide at polypyrrole/graphene/au microelectrode based on three-electrode-system array","authors":"Yuhua Yu, Jianfeng Chen, Jia Zhou","doi":"10.1109/NANO.2013.6720898","DOIUrl":null,"url":null,"abstract":"This work reported a one-step electrodeposition to fabricate a graphene nanosheets doped polypyrrole modified gold (PPy/GENS/Au) electrode at the on-chip three-electrode-system electrochemical sensor array. The PPy/GENS/Au electrode exhibited excellent electrochemical properties of large current response, good reproducibility and stability. When applied for the detection of hydrogen peroxide (H2O2), this proposed sensor carry out a rapid, direct and selective determination of H2O2 with the linear range from 1 to 10mM (R-square=0.9914) and a sensitivity of about 32 μA mM-1cm-2. The simple and low-cost construction of PPy/GENS/Au electrode shows a great promise to fabricate mass-produced nano-platform for potential application of biosensing analysis in a lab-on-a-chip system.","PeriodicalId":189707,"journal":{"name":"2013 13th IEEE International Conference on Nanotechnology (IEEE-NANO 2013)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2013-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2013 13th IEEE International Conference on Nanotechnology (IEEE-NANO 2013)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/NANO.2013.6720898","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
This work reported a one-step electrodeposition to fabricate a graphene nanosheets doped polypyrrole modified gold (PPy/GENS/Au) electrode at the on-chip three-electrode-system electrochemical sensor array. The PPy/GENS/Au electrode exhibited excellent electrochemical properties of large current response, good reproducibility and stability. When applied for the detection of hydrogen peroxide (H2O2), this proposed sensor carry out a rapid, direct and selective determination of H2O2 with the linear range from 1 to 10mM (R-square=0.9914) and a sensitivity of about 32 μA mM-1cm-2. The simple and low-cost construction of PPy/GENS/Au electrode shows a great promise to fabricate mass-produced nano-platform for potential application of biosensing analysis in a lab-on-a-chip system.
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