A critical review: Advanced electrochemical analysis based on nanoscale scanning electrochemical microscopy

IF 6.5 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Sensors and Actuators Reports Pub Date : 2024-09-05 DOI:10.1016/j.snr.2024.100243

Je Hyun Bae

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引用次数: 0

Abstract

Electroanalysis is a type of analytical method used to study an analyte by measuring its electrical properties in an electrochemical cell. It has been widely used because it is a relatively simple and inexpensive technique, has a low detection limit and is able to measure original electrical signals. Electroanalysis has advanced with the development of nanotechnology, offering new opportunities for analysis. Scanning electrochemical microscopy (SECM) is a probe-based surface analysis instrument that enables real-time surface and interfacial analysis with spatial resolution in an electrochemical environment. In this review, we focus on the use of nanoscale SECM for improved electroanalysis. After introducing the fabrication, characterization, and modification of nanoelectrodes, which are the key to enabling nanoscale SECM, we introduce the instrumentation and fundamental principles of SECM. Several examples are provided to illustrate the advanced electroanalysis of photo-electrocatalysts and biosystems based on nanoscale SECM, which will be utilized as a more powerful electroanalytical tool in the future when combined with other analytical instruments.

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重要评论：基于纳米级扫描电化学显微镜的高级电化学分析

电分析是通过测量电化学电池中分析物的电特性来研究分析物的一种分析方法。由于电分析技术相对简单、成本低廉、检测限低，并且能够测量原始电信号，因此得到了广泛应用。电分析技术随着纳米技术的发展而不断进步，为分析提供了新的机遇。扫描电化学显微镜（SECM）是一种基于探针的表面分析仪器，可在电化学环境中进行具有空间分辨率的实时表面和界面分析。在本综述中，我们将重点介绍如何利用纳米级 SECM 改进电分析。纳米电极是实现纳米级 SECM 的关键，在介绍了纳米电极的制造、表征和改性之后，我们介绍了 SECM 的仪器和基本原理。我们提供了几个例子来说明基于纳米级 SECM 的光电催化剂和生物系统的先进电分析技术，该技术在未来与其他分析仪器结合使用时将成为更强大的电分析工具。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Sensors and Actuators Reports Multiple-

CiteScore

9.60

自引率

0.00%

发文量

审稿时长

49 days

期刊介绍： Sensors and Actuators Reports is a peer-reviewed open access journal launched out from the Sensors and Actuators journal family. Sensors and Actuators Reports is dedicated to publishing new and original works in the field of all type of sensors and actuators, including bio-, chemical-, physical-, and nano- sensors and actuators, which demonstrates significant progress beyond the current state of the art. The journal regularly publishes original research papers, reviews, and short communications. For research papers and short communications, the journal aims to publish the new and original work supported by experimental results and as such purely theoretical works are not accepted.