Development of a glucose enzyme fuel cell based on thin film electrode using biocatalysts

IF 2.5 4区 生物学 Q3 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Biotechnology and Bioprocess Engineering Pub Date : 2024-03-21 DOI:10.1007/s12257-024-00065-x
Dong Sup Kim, Xiaoguang Yang, Abdus Sobhan, Chulhwan Park, Seung Wook Kim, Jinyoung Lee
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Abstract

Artificial transplantation of the human body, which requires high technology, has been an attractive issue in the 4th industrial revolution era. The artificial equipment for human applications could contain a small-scale power supply. Enzyme fuel cells (EFCs) that generate green energy are being researched for use as the power supply for pacemakers, insulin pump, and retinal implant in human body. This study focused on an (EFC) using thin film electrodes-based on enzyme immobilization technology. The performance of this EFC was improved by enzyme immobilization and electron transfer. To improve the electron transfer, the GO/Co/chitosan composite was modified on the surface of thin film electrode. The properties of this modified surface of thin film electrode were confirmed by analysis of field emission gun scanning electron microscopy, Fourier transform infrared spectroscopy, and atomic force microscopy. The performance of the designed EFC was optimized with immobilized redox enzyme on the modified electrode. The highest power density and voltage are determined as 441.48 µW/cm2 and − 0.443 V by thin film electrode, respectively. The optimum conditions of the EFC were 0.1 M D-glucose, 0.1 g/L glucose oxidase, pH 7.0, and reaction time of 4 h for both two types of thin film-electrodes.

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利用生物催化剂开发基于薄膜电极的葡萄糖酶燃料电池
在第四次工业革命时代,需要高技术的人体人工移植一直是一个颇具吸引力的问题。应用于人体的人工设备可以包含小型电源。目前正在研究可产生绿色能源的酶燃料电池(EFC),以用作人体心脏起搏器、胰岛素泵和视网膜植入体的电源。这项研究的重点是基于酶固定技术的薄膜电极(EFC)。通过酶固定和电子传递,该 EFC 的性能得到了改善。为了改善电子传递,在薄膜电极表面对 GO/Co/ 壳聚糖复合材料进行了修饰。通过场发射枪扫描电子显微镜、傅立叶变换红外光谱和原子力显微镜的分析,证实了这种改性薄膜电极表面的特性。通过在改性电极上固定氧化还原酶,对所设计的 EFC 性能进行了优化。薄膜电极的最高功率密度和电压分别为 441.48 µW/cm2 和 - 0.443 V。两种薄膜电极的 EFC 最佳条件均为 0.1 M D-葡萄糖、0.1 g/L 葡萄糖氧化酶、pH 值为 7.0、反应时间为 4 小时。
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来源期刊
Biotechnology and Bioprocess Engineering
Biotechnology and Bioprocess Engineering 工程技术-生物工程与应用微生物
CiteScore
5.00
自引率
12.50%
发文量
79
审稿时长
3 months
期刊介绍: Biotechnology and Bioprocess Engineering is an international bimonthly journal published by the Korean Society for Biotechnology and Bioengineering. BBE is devoted to the advancement in science and technology in the wide area of biotechnology, bioengineering, and (bio)medical engineering. This includes but is not limited to applied molecular and cell biology, engineered biocatalysis and biotransformation, metabolic engineering and systems biology, bioseparation and bioprocess engineering, cell culture technology, environmental and food biotechnology, pharmaceutics and biopharmaceutics, biomaterials engineering, nanobiotechnology, and biosensor and bioelectronics.
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