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Reference type: Journal
Authors: Wang HH, Chen XJ, Li WT, Zhou WH, Guo XC, Kang WY, Kou DX, Zhou ZJ, Meng YN, Tian QW, Wu SX
Article Title: ZnO nanotubes supported molecularly imprinted polymers arrays as sensing materials for electrochemical detection of dopamine.
Publication date: 2018
Journal: Talanta
Volume: 176
Page numbers: 573-581.
DOI: 10.1016/j.talanta.2017.08.083
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0039914017309153

Abstract: In this study, ZnO nanotubes (ZNTs) were prepared onto fluorine-doped tin oxide (FTO) glass and used as supports for MIPs arrays fabrication. Due to the imprinted cavities are always located at both inner and outer surface of ZNTs, these ZNTs supported MIPs arrays have good accessibility towards template and can be used as sensing materials for chemical sensors with high sensitivity, excellent selectivity and fast response. Using K3[Fe(CN)6] as electron probe, the fabricated electrochemical sensor shows two linear dynamic ranges (0.02-5 μM and 10-800 μM) towards dopamine. This proposed electrochemical sensor has been applied for dopamine determination with satisfied recoveries and precision. More complex human urine samples also confirmed that the proposed method has good accuracy for dopamine determination in real biological samples. These results suggest potential applicability of the proposed method and sensor in important molecule analysis
Template and target information: dopamine
Author keywords: ZnO nanotubes (ZNTs), molecularly imprinted polymers (MIPs), arrays, dopamine, Electrochemical sensor

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