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首页> 外文期刊>International Journal of Electrochemical Science >The Micro Network of Polyacrylonitrile (PAN)-polyaniline (Pani)-graphene (GRA) Hybrid Nanocomposites for Effective Electrochemical Detection of Glucose and Improved Stability
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The Micro Network of Polyacrylonitrile (PAN)-polyaniline (Pani)-graphene (GRA) Hybrid Nanocomposites for Effective Electrochemical Detection of Glucose and Improved Stability

机译：聚丙烯腈（PAN）-聚苯胺（Pani）-石墨烯（GRA）杂化纳米复合材料的微网络，用于有效电化学检测葡萄糖和提高稳定性

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A glucose biosensor was developed by immobilizing glucose oxidase (GOD) into the micro network ofpolyacrylonitrile (PAN)-polyaniline (Pani)-graphene (GRA) hybrid nanocomposite fabricated throughphase inversion process. PAN with molecular weight of Mw around 2.93×104 was synthesized by singlerare-earth catalyst-Y(OAr)3 and GRA with few-layers was prepared by electrochemical expansion ofgraphite in propylene carbonate electrolyte, respectively. The morphologies of nanocomposites and thefabricated process of biosensor were performed by scanning electron microscopy (SEM). The cyclicvoltammetry (CV) was employed to evaluate electrochemical performance of the as-preparedbiosensor. The apparent activation energy (Ea) of enzyme-catalyzed reaction based on Arrheniusequation was estimated to be 16.21 kJ mol-1. The constructed glucose biosensor exhibited a shortresponse time within 5 s, and a superior storage stability of preserving 96.28% of the original responseover a period of 2 weeks and 91.95% of that even after a month. The linear range, sensitivity, detectionlimit, anti-interference, and practical application were also investigated. The micro network of PANPani-GRA hybrid nanocomposite provides a hopeful candidate for construction of biosensors.
机译：通过将葡萄糖氧化酶（GOD）固定在通过相转化法制备的聚丙烯腈（PAN）-聚苯胺（Pani）-石墨烯（GRA）杂化纳米复合材料的微网络中，开发了一种葡萄糖生物传感器。通过单稀土催化剂-Y（OAr）3合成了分子量为2.93×104的PAN，通过石墨在碳酸亚丙酯中的电化学膨胀制备了几层的GRA。纳米复合材料的形貌和生物传感器的制备过程通过扫描电子显微镜（SEM）进行。循环伏安法（CV）用于评估所制备生物传感器的电化学性能。基于Arrhenius方程的酶催化反应的表观活化能（Ea）估计为16.21 kJ mol-1。所构建的葡萄糖生物传感器在5 s内显示了较短的响应时间，并且在2周内可保存原始响应的96.28％，甚至在一个月后仍保持91.95％的优异存储稳定性。还研究了线性范围，灵敏度，检测限，抗干扰性和实际应用。 PANPani-GRA杂化纳米复合材料的微网络为构建生物传感器提供了希望的候选者。

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