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Graphene-based Nanomaterials for Fabrication of ‘Pesticide’ Electrochemical Sensors

机译：基于石墨烯的纳米材料制备“农药电化学传感器”

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摘要

At present, graphene is one of the most up-to-date materials and it can be applied for various energy conversion devices and sensor technology. In this review article, our main focus is to summarize the role of graphene and its modified surface leading to develop hybrid nanomaterials and its applications in fabrication of pesticide sensor. Graphene based materials demonstrate exclusive electrochemical and optical properties as well as compatibility to absorb a variety of bio-molecules through π-π stacking interaction and/or electrostatics interaction, which make them ideal material to be employed in sensor application. The role of graphene is very crucial in preparing different unique and desirable hybrid functional composites along with nanoparticles, redox mediators, conducting polymers etc. to improve the performance of the sensors. Therefore, they can be easily used as a suitable material applying in fabrication of electrochemical sensors/ biosensors for the detection of organophosphorous and carbamate pesticides. A number of most recent reported works were discussed in which graphene-based hybrid composites show high sensitivity, good catalytic activity, selectivity towards the determination of pesticide either enzymatically or nonenzymatically. The properties of graphene (exceptional charge transport, thermal, optical, mechanical, high surface area, large pore volume and size, an opened ordered structure) play an important role in pesticide detection.
机译：目前，石墨烯是最新的最新材料之一，它可以应用于各种能量转换装置和传感器技术。在本综述文章中，我们的主要重点是总结石墨烯及其改性表面的作用，从而开发杂种纳米材料及其在农药传感器的制造中的应用。基于石墨烯的材料证明了专用的电化学和光学性质，以及通过π-π堆叠相互作用和/或静电相互作用吸收各种生物分子的相容性，这使得它们在传感器应用中使用理想的材料。石墨烯的作用对于制备不同的独特和理想的杂交官能复合材料以及纳米颗粒，氧化还原介质，导电聚合物等来非常关键，以改善传感器的性能。因此，它们可以容易地用作施加在用于检测有机磷和氨基甲酸氨基杀虫剂的电化学传感器/生物传感器的合适材料。讨论了许多最近报告的作品，其中基于石墨烯的杂化复合材料显示出高灵敏度，良好的催化活性，选择性均酶促或非酶促测定农药。石墨烯的性质（卓越的电荷输送，热，光学，机械，高表面积，大孔体积和尺寸，打开的有序结构）在农药检测中起重要作用。

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