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Conducting polymer engineered covalent organic framework as a novel electrochemical amplifier for ultrasensitive detection of acetaminophen

查看全文 作　　者：Yao [1]Xie;Yuling [1]Chen;Xin [1]Sun;Yang [1]Wang;Yi [2]Wang 高影响力作者 机构地区：[1]School of Chemistry and Chemical Engineering,Yangzhou University,Yangzhou 225002,China;[2]Engineering Research Center of Clinical Functional Materials and Diagnosis&Treatment Devices of Zhejiang Province,Wenzhou Institute,University of Chinese Academy of Sciences,Wenzhou 325001,China高影响力机构 出　　处：《Chinese Chemical Letters》索引2021年第32卷第6期,共5页高影响力期刊 基　　金：supported by the National Natural Science Foundation of China(No.21205103);Jiangsu Provincial Natural Science Foundation(No.BK2012258);Young and Middle-aged Academic Leaders Foundation of Yangzhou University;Top-notch Academic Programs Project of Jiangsu Higher Education Institutions(TAPP);funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD)。 摘　　要：Two-dimensional covalent organic framework(COF)has distinctive properties that offer potential opportunities for developing advanced electrode materials.In this work,a core-shell material composed of TAPB-DMTP-COF(TAPB,1,3,5-tris(4-aminophenyl)benzene;DMTP,2,5-dimethoxyterephaldehyde)core and conducting polymer shell,TAPB-DMTP-COF@PANI,was synthesized solvothermally using a polymerization method.The structural cha racteristics of the prepared composite were revealed by X-ray diffraction patterns(XRD),fourier transform infrared spectra(FTIR),X-ray photoelectron spectroscopy(XPS),transmission electron microscopy(TEM).The electrochemical analyses were verified by subsequent monitoring of trace levels of acetaminophen.This resultant composite not only facilitated acetaminophen to interact with absorption sites byπ-πstacking effect and hydrogen bonding but also overcame the poor conductivity of COF.Under the optimal conditions,a low limit of detection of 0.032μmol/L and wide linear range of 0.10-500μmol/L were obtained.The electrochemical platform was almost unaffected by other interfering substances,and successfully applied for the practical detection of acetaminophen in commercial tablet,human blood serum and urine.The enhanced performance makes this COF based core-shell composite a promising material in electrochemical senso r. 关 键 词：Covalent organic frameworks Conducting polymer Electrochemical sensor Ultrasensitive detection ACETAMINOPHEN
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