Direct electrocatalytic sensing of myoglobin using an annealed Au-implanted electrode

IF 1.3 4区 化学 Q4 ELECTROCHEMISTRY
Fenfen Liang , Yanhong Zhang , Mingxia Zhao , Junbing Jiang
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引用次数: 0

Abstract

Ion implantation is a versatile and green material surface modification technology that modifies the structure of target-neat surface by bombardment of non-metal or heavy metal ions. A new Au nanoparticle loaded ITO (AuNPs/ITO) electrodes was prepared by ion implantation and thermal annealing method in this work. The obtained nanoparticles were characterized by Scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS) and electrochemical methods. The direct electrocatalysis of Myoglobin (MB) was reported. It was found that after annealing at 500 °C for 2 h, the damage part of the implanted sample was eliminated. The surface coverage of MB on the MB/AuNPs/ITO electrode and the MB/annealed-AuNPs/ITO electrode was 4.35× 10−11 mol·cm−2 and 1.23 × 10−10 mol·cm−2, respectively. The results show that this composite method can be used to fabricate an electrocatalytic biosensor.

使用退火金植入电极直接电催化检测肌红蛋白
离子注入是一种多功能的绿色材料表面改性技术,它通过轰击非金属或重金属离子来改变目标表面的结构。本研究采用离子注入和热退火方法制备了一种新型金纳米粒子负载 ITO(AuNPs/ITO)电极。通过扫描电子显微镜(SEM)、X 射线光电子能谱(XPS)和电化学方法对获得的纳米粒子进行了表征。报告了直接电催化肌红蛋白(MB)的研究。研究发现,在 500 °C 下退火 2 小时后,植入样品的损伤部分被消除。MB/AuNPs/ITO 电极和 MB/annealed-AuNPs/ITO 电极上 MB 的表面覆盖率分别为 4.35×10-11 mol-cm-2 和 1.23×10-10 mol-cm-2。结果表明,这种复合方法可用于制造电催化生物传感器。
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来源期刊
CiteScore
3.00
自引率
20.00%
发文量
714
审稿时长
2.6 months
期刊介绍: International Journal of Electrochemical Science is a peer-reviewed, open access journal that publishes original research articles, short communications as well as review articles in all areas of electrochemistry: Scope - Theoretical and Computational Electrochemistry - Processes on Electrodes - Electroanalytical Chemistry and Sensor Science - Corrosion - Electrochemical Energy Conversion and Storage - Electrochemical Engineering - Coatings - Electrochemical Synthesis - Bioelectrochemistry - Molecular Electrochemistry
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