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材料导报  2025, Vol. 39 Issue (18): 24080109-5    https://doi.org/10.11896/cldb.24080109
  无机非金属及其复合材料 |
高温退火增强碳纳米管的生物电化学性能研究
岳庆1,2, 李文全1,*, 盛鸿伟2,*, 兰伟2,*
1 青海师范大学物理与电子信息工程学院,西宁 810005
2 兰州大学物理科学与技术学院,兰州 730000
Bio-electrochemical Properties of Carbon Nanotubes Enhanced by High-temperature Annealing
YUE Qing1,2, LI Wenquan1,*, SHENG Hongwei2,*, LAN Wei2,*
1 School of Physics and Electronic Information Engineering, Qinghai Normal University, Xining 810005, China
2 School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China
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摘要 以生物电催化为基础的各种氧化还原酶常用于开发生物电子器件,如生物燃料电池和生物传感器。然而,酶-电极界面电子转移效率低下是限制酶生物电催化系统实际应用的主要瓶颈问题。基于此,选择使用最为广泛的葡萄糖氧化酶为模型酶,以碳纳米管(CNTs) 作为电子转移介质和酶固定载体,探究了高温退火对葡萄糖氧化酶 (GOx) 电子转移和催化活性的影响,重点研究了高温退火处理对CNTs的微观形貌、晶体结构和石墨化程度的影响,以及结构与生物电化学性能之间的构效关系。研究结果表明,退火提高了CNTs的石墨化程度,增强了电子转移能力和催化活性,与未退火的CNTs相比,GOx的活性中心与退火后CNTs的相互作用明显提升。本研究对构筑基于纳米碳材料的高性能酶生物电极具有重要的指导意义。
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岳庆
李文全
盛鸿伟
兰伟
关键词:  碳纳米管  高温退火  葡萄糖氧化酶  生物电化学    
Abstract: Oxidoreductase enzymes based on bioelectric catalysis are commonly used to construct bioelectronic devices, such as biofuel cells and biosensors. However, the low efficiency of electron transfer at the enzyme-electrode interface is the main bottleneck that limits the practical application of enzyme bioelectric catalytic systems. Based on this, this work selected the most widely used glucose oxidase (GOx) as the model enzyme, and carbon nanotubes (CNTs) as the electron transfer medium and enzyme immobilization carrier, to investigate the effect of high-temperature annealing on the electron transfer and catalytic activity of GOx. The effects of high-temperature annealing on the microscopic morphology, crystal structure, and graphitization degree of CNTs, as well as the structural-functional relationships between the structure and bio-electrochemical properties were studied. The results showed that annealing treatment improved the graphitization degree of CNTs, enhanced the electron transfer ability and catalyticactivity, and the interaction between the active center of GOx and the annealed CNTs was significantly improved compared to the unannealed CNTs. This study has important guiding significance for the construction of high-performance enzyme bioelectrodes based on nanocarbon materials.
Key words:  carbon nanotubes    high temperature annealing    glucose oxidase    bio-electrochemistry
出版日期:  2025-09-25      发布日期:  2025-09-11
ZTFLH:  O646  
基金资助: 青海省应用基础研究项目 (2022-ZJ-703);国家自然科学基金 (62404088;61874166);甘肃省自然科学基金 (24JRRA818;24JRRA395);兰州大学青年研究员-科研启动经费
通讯作者:  *李文全,硕士,青海师范大学物理与电子信息工程学院副教授。主要从事信号处理等方面的研究。liwenquan@qhnu.edu.cn;
盛鸿伟,博士,兰州大学物理科学与技术学院青年研究员、硕士研究生导师。主要从事生物可降解电子材料与器件方面的研究。shenghw@lzu.edu.cn;
兰伟,博士,兰州大学物理科学与技术学院教授、博士研究生导师。主要从事柔性电子学领域的应用基础研究。lanw@lzu.edu.cn   
作者简介:  岳庆,兰州大学物理科学与技术学院凝聚态物理专业硕士研究生,在兰伟教授和盛鸿伟青年研究员的指导下进行研究。研究方向为生物电化学、面向体液监测的自供能传感器。
引用本文:    
岳庆, 李文全, 盛鸿伟, 兰伟. 高温退火增强碳纳米管的生物电化学性能研究[J]. 材料导报, 2025, 39(18): 24080109-5.
YUE Qing, LI Wenquan, SHENG Hongwei, LAN Wei. Bio-electrochemical Properties of Carbon Nanotubes Enhanced by High-temperature Annealing. Materials Reports, 2025, 39(18): 24080109-5.
链接本文:  
https://www.mater-rep.com/CN/10.11896/cldb.24080109  或          https://www.mater-rep.com/CN/Y2025/V39/I18/24080109
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