Recent advances on gold and silver nanoparticle-based colorimetric strategies for the detection of different substances and SARS-CoV-2: a comprehensive review,Environmental Science: Nano

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Recent advances on gold and silver nanoparticle-based colorimetric strategies for the detection of different substances and SARS-CoV-2: a comprehensive review
Environmental Science: Nano ( IF 5.8 ) Pub Date : 2022-08-16 , DOI: 10.1039/d2en00503d
Sushama Sahu ₁ , Srishti Sharma ₁ , Ramsingh Kurrey ₁ , Kallol K. Ghosh ₁

Affiliation

Nanoparticle (NP)-based colorimetric methods are extensively used for the rapid detection of environmental contaminants, different substances and SARS-CoV-2 in various fields such as environmental science, virology, pollution research, and the food industry, as well as biomedicine. Colorimetric sensors exhibit high sensitivity and selectivity, are easy to handle, portable, safe for screening purposes and can be visualized by the naked eye. Herein, the colorimetric sensing approaches of the two most commonly used metallic NPs, i.e., gold (Au) and silver (Ag), and their physicochemical methods are discussed, as metallic NPs show good efficiency due to their unique optical and chemical properties. This review summarizes the progress on colorimetric sensors based on metallic NPs as sensors and their applications, elucidating the utility and superior features of metallic-NP-based colorimetric assay for the detection of different environmental contaminants, biomolecules and SARS-CoV-2 in the environmental as well as human biological samples. An outlook with respect to the trends and future development of the proposed sensors is also provided.

中文翻译：

用于检测不同物质和 SARS-CoV-2 的基于金和银纳米颗粒的比色策略的最新进展：综合综述

基于纳米粒子 (NP) 的比色法广泛用于环境科学、病毒学、污染研究、食品工业以及生物医学等各个领域的环境污染物、不同物质和 SARS-CoV-2 的快速检测。比色传感器具有高灵敏度和选择性，易于操作、便携、安全用于筛查目的，并且可以用肉眼观察。在此，两种最常用的金属纳米粒子的比色传感方法，即，金（Au）和银（Ag），以及它们的物理化学方法进行了讨论，因为金属纳米粒子由于其独特的光学和化学性质而显示出良好的效率。本综述总结了基于金属 NPs 作为传感器的比色传感器及其应用的进展，阐明了基于金属 NP 的比色法检测环境中不同环境污染物、生物分子和 SARS-CoV-2 的实用性和优越性。以及人类生物样本。还提供了对所提出传感器的趋势和未来发展的展望。

更新日期：2022-08-16

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