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Facile synthesis of hexagonal-shaped polypyrrole self-assembled particles for the electrochemical detection of dopamine

机译：六方聚吡咯自组装粒子的电化学合成多巴胺的简便合成

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摘要

Nanomaterials have been used as an electroactive medium to enhance the efficiency of bio/chemical sensors, primarily when synergy is reached upon mixing different materials. In this study, we report on the facile synthesis of hexagonal-shaped plate-like polypyrrole (PPY-IC) prepared through inclusion polymerization of the host-guest pyrrole monomeric inclusion complex of beta-cyclodextrin (beta-CD) to be used in the detection of the neurotransmitter dopamine (DA). The amount of the monomer complex plays a crucial role in the fabrication of well-defined hexagonal-shaped PPY-IC through intermolecular interactions such as pi-pi interactions and hydrogen bonding between the beta-CD and PPY. The microstructure and morphology of the PPY-IC were examined by using various analytical techniques and a tentative mechanism for the growth process proposed which elucidates the formation of the hierarchical structure of the PPY-IC. Cyclo-voltammetry was performed with a PPY-IC modified glassy carbon electrode (GCE) for the electrochemical detection of DA. The concepts behind the novel architecture of the PPY-IC modified electrodes have potential for the production of materials to be used in electrochemical sensors and biosensors. (C) 2015 Elsevier B.V. All rights reserved.
机译：纳米材料已被用作电活性介质，以增强生物/化学传感器的效率，主要是在混合不同材料时达到协同作用。在这项研究中，我们报道了通过β-环糊精（β-CD）的客体吡咯单体包合复合物的包合聚合制备的六角形板状聚吡咯（PPY-IC）的合成方法。神经递质多巴胺（DA）的检测。单体配合物的量在通过分子间相互作用（例如pi-pi相互作用以及β-CD和PPY之间的氢键）制造明确定义的六边形PPY-IC中起着至关重要的作用。 PPY-IC的微观结构和形态通过使用各种分析技术和拟议的生长过程的初步机制进行了研究，阐明了PPY-IC的分层结构的形成。使用PPY-IC修饰的玻碳电极（GCE）进行循环伏安法，用于DA的电化学检测。 PPY-IC修饰电极的新型结构背后的概念具有生产用于电化学传感器和生物传感器的材料的潜力。 （C）2015 Elsevier B.V.保留所有权利。

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