{"title":"A flexible electrochemical sensor based on Fe-doped polydopamine derived carbon for simultaneous detection of dopamine and uric acid","authors":"Xinyu Wang, Wenbin Wang, Meng Gao, Min Fu, Linzheng Ma, Wei Chen","doi":"10.1039/d4ay00980k","DOIUrl":null,"url":null,"abstract":"A free-standing electrode was developed based on carbon cloth-supported Fe doped polydopamine derived carbon (Fe/PDA-C/CC) for detection of dopamine (DA) and uric acid (UA) simultaneously. First, dopamine was self-polymerized on the surface of carbon cloth to obtain the polydopamine coatings. Then, Fe3+ was introduced by the formation of coordinate bond with the hydroxyl functional group in the polydopamine layer. After calcination, a flexible and free-standing electrode was obtained. The sensing performance and mechanism of the Fe/PDA-C/CC sensor was investigated and discussed in detail. The experiment results demonstrated that the Fe/PDA-C/CC could simultaneous detection of DA and UA with a wide detection range of 0.5-300 μM and 0.5-400 μM, with low detection limits of 0.041 μM and 0.012 μM, respectively. Meanwhile, the Fe/PDA-C/CC possessed excellent anti-interference, repeatability, stability, as well as accuracy in real samples. Overall, this study provided a facile and effect approach for simultaneous detection of UA and DA.","PeriodicalId":64,"journal":{"name":"Analytical Methods","volume":null,"pages":null},"PeriodicalIF":2.7000,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Analytical Methods","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1039/d4ay00980k","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, ANALYTICAL","Score":null,"Total":0}
引用次数: 0
Abstract
A free-standing electrode was developed based on carbon cloth-supported Fe doped polydopamine derived carbon (Fe/PDA-C/CC) for detection of dopamine (DA) and uric acid (UA) simultaneously. First, dopamine was self-polymerized on the surface of carbon cloth to obtain the polydopamine coatings. Then, Fe3+ was introduced by the formation of coordinate bond with the hydroxyl functional group in the polydopamine layer. After calcination, a flexible and free-standing electrode was obtained. The sensing performance and mechanism of the Fe/PDA-C/CC sensor was investigated and discussed in detail. The experiment results demonstrated that the Fe/PDA-C/CC could simultaneous detection of DA and UA with a wide detection range of 0.5-300 μM and 0.5-400 μM, with low detection limits of 0.041 μM and 0.012 μM, respectively. Meanwhile, the Fe/PDA-C/CC possessed excellent anti-interference, repeatability, stability, as well as accuracy in real samples. Overall, this study provided a facile and effect approach for simultaneous detection of UA and DA.
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