Glutathione engineered gold nanoparticles-based electrochemical aptasensor for determination of arsenic ions in water, food, and soil samples

IF 4 2区农林科学 Q2 CHEMISTRY, APPLIED

Journal of Food Composition and Analysis Pub Date : 2024-09-12 DOI:10.1016/j.jfca.2024.106728

引用次数: 0

Abstract

Arsenic, As(III) is one of the highly toxic metalloid ions present in the earth's crust. Its availability especially in groundwater, soil, and plant products can impose significant environmental and health risks. In order to examine aforementioned matrices for the presence of As(III), we have fabricated a sensitive electrochemical bionanoprobe using As(III) specific aptamer modified glutathione (GSH)-capped gold nanoparticles. The developed probe demonstrated remarkable sensing performance for a wide concentration range of As(III) (e.g., 0.1–1000 mg/L) with extremely high sensitivity of 0.0875 µA/(mg/L.mm²). Moreover, we have achieved an exceptionally low limit of detection (0.13 µg/L) for As(III) using the developed bionanoprobe. Furthermore, it displayed excellent performance in monitoring As(III) in groundwater, soil, and rice samples.

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基于谷胱甘肽工程金纳米粒子的电化学传感器，用于测定水、食品和土壤样品中的砷离子

砷（As(III)）是存在于地壳中的剧毒类金属离子之一。它的存在，尤其是在地下水、土壤和植物产品中的存在，会对环境和健康造成严重危害。为了检测上述基质中是否存在 As(III)，我们利用经谷胱甘肽（GSH）修饰的 As(III)特异性贴体-封帽金纳米粒子制作了一种灵敏的电化学仿生探针。所开发的探针在很宽的 As(III) 浓度范围（如 0.1-1000 mg/L）内都表现出了卓越的传感性能，灵敏度高达 0.0875 µA/(mg/L.mm2)。此外，我们还利用所开发的仿生探针实现了极低的砷(III)检测限（0.13 µg/L）。此外，它在监测地下水、土壤和大米样品中的砷（III）方面也表现出了卓越的性能。

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

Journal of Food Composition and Analysis 工程技术-食品科技

CiteScore

6.20

自引率

11.60%

发文量

601

审稿时长

53 days

期刊介绍： The Journal of Food Composition and Analysis publishes manuscripts on scientific aspects of data on the chemical composition of human foods, with particular emphasis on actual data on composition of foods; analytical methods; studies on the manipulation, storage, distribution and use of food composition data; and studies on the statistics, use and distribution of such data and data systems. The Journal''s basis is nutrient composition, with increasing emphasis on bioactive non-nutrient and anti-nutrient components. Papers must provide sufficient description of the food samples, analytical methods, quality control procedures and statistical treatments of the data to permit the end users of the food composition data to evaluate the appropriateness of such data in their projects. The Journal does not publish papers on: microbiological compounds; sensory quality; aromatics/volatiles in food and wine; essential oils; organoleptic characteristics of food; physical properties; or clinical papers and pharmacology-related papers.

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