• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Electrochemical performance of myoglobin based on TiO2-doped carbon nanofiber decorated electrode and its applications in biosensing
【24h】

Electrochemical performance of myoglobin based on TiO2-doped carbon nanofiber decorated electrode and its applications in biosensing

机译：TiO2掺杂碳纳米纤维修饰电极的肌红蛋白的电化学性能及其在生物传感中的应用

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A new biosensing strategy based on a TiO _(2) -doped carbon nanofiber (CNF) composite modified electrode was developed. TiO _(2) @CNF was prepared by electrospinning with further carbonization, before being characterized by various methods and used for electrode modification on the surface of carbon ionic liquid electrode (CILE). Myoglobin (Mb) was further immobilized on the modified electrode surface. The results of ultraviolet-visible (UV-vis) and Fourier transform infrared (FT-IR) spectroscopy showed that Mb maintained its native structure without denaturation in the composite film. Direct electron transfer and the electrocatalytic properties of Mb on the electrode surface were further investigated. A pair of quasi-reversible redox peaks appeared on the cyclic voltammogram, indicating that direct electrochemistry of Mb was realized in the nanocomposite film. This could be attributed to the specific properties of TiO _(2) @CNF nanocomposite, including a large surface-to-volume ratio, good biocompatibility and high conductivity. Nafion/Mb/TiO _(2) @CNF/CILE exhibited an excellent electrochemical catalytic ability in the reduction of trichloroacetic acid, NaNO _(2) and H _(2) O _(2) . All results demonstrated potential applications of TiO _(2) @CNF in third-generation electrochemical biosensors.
机译：提出了一种基于TiO_（2）掺杂的碳纳米纤维（CNF）复合修饰电极的生物传感新策略。 TiO_（2）@CNF是通过进一步静电碳化的静电纺丝制备的，然后通过各种方法表征并用于碳离子液体电极（CILE）表面的电极改性。肌红蛋白（Mb）进一步固定在修饰的电极表面上。紫外可见（UV-vis）和傅立叶变换红外（FT-IR）光谱的结果表明，Mb保持了其天然结构，而在复合膜中没有变性。进一步研究了Mb在电极表面的直接电子转移和电催化性能。循环伏安图上出现一对准可逆的氧化还原峰，表明在纳米复合膜中实现了Mb的直接电化学。这可以归因于TiO_（2）@CNF纳米复合材料的特殊性能，包括大的体积比，良好的生物相容性和高电导率。 Nafion / Mb / TiO _（2）@ CNF / CILE在还原三氯乙酸，NaNO _（2）和H _（2）O _（2）方面表现出优异的电化学催化能力。所有结果证明了TiO _（2）@CNF在第三代电化学生物传感器中的潜在应用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号