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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Effects of carbon structure orientation on the performance of glucose sensors fabricated from electrospun carbon fibers
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Effects of carbon structure orientation on the performance of glucose sensors fabricated from electrospun carbon fibers

机译：碳结构取向对电纺碳纤维制成的葡萄糖传感器性能的影响

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摘要

High-performance enzyme-based glucose sensors were prepared by electrospinning carbon fibers. The efficiency of the glucose sensor was assessed based on efficient enzyme immobilization and electrical resistance transfer by examining improved porosity and electrical properties, respectively. The porosity of the electrospun carbon fiber electrode was improved by physical activation to increase the immobilization sites of the glucose oxidase enzyme. The electrical properties were improved by a thermal treatment, which caused carbon orientation effects because of the high thermal energy. The glucose oxidase enzyme immobilization was developed based on improved specific surface area and pore volume, which were studied by pore structure and image analyzers. The glucose sensor was evaluated by amperometric measurements and cyclic voltammetry. The measured current increased with higher glucose concentrations based on the effects of the developed pore structure and the electrical properties. The enzymatic kinetics were also studied using the Lineweaver-Burk equation. The sensitivity of the glucose sensor was improved significantly with increased maximum current, whereas the GOD enzyme activity was diminished by efficient GOD immobilization. It is concluded that a high-performance glucose sensor was obtained using electrospun carbon fibers based on the effects of efficient GOD enzyme immobilization and electrical resistance transfer.
机译：通过静电纺丝碳纤维制备了基于酶的高性能葡萄糖传感器。通过分别检查改善的孔隙率和电性能，基于有效的酶固定和电阻转移评估了葡萄糖传感器的效率。电纺碳纤维电极的孔隙率通过物理活化来改善，以增加葡萄糖氧化酶的固定位点。通过热处理改善了电性能，由于高热能而引起碳取向效应。葡萄糖氧化酶固定化是基于改善的比表面积和孔体积开发的，并通过孔结构和图像分析仪进行了研究。通过安培法测量和循环伏安法评估葡萄糖传感器。由于形成的孔结构和电性能的影响，所测电流随着葡萄糖浓度的升高而增加。还使用Lineweaver-Burk方程研究了酶动力学。葡萄糖传感器的灵敏度随着最大电流的增加而显着提高，而有效的GOD固定可降低GOD酶的活性。结论是，基于有效的GOD酶固定和电阻转移的效果，使用电纺碳纤维获得了高性能的葡萄糖传感器。

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