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

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-06-13 DOI:10.1016/j.ijoes.2024.100681

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.

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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

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.