Fabric-based visualization biosensor for real-time environmental monitoring and food safety

IF 12.2 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Journal of Hazardous Materials Pub Date : 2024-11-16 DOI:10.1016/j.jhazmat.2024.136559

Jiaqi Zhang, Jizhen Zhang, Senlin Gu, Lipei Ren, Dong Wang, Christopher Hurren

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引用次数: 0

Abstract

Foodborne and waterborne bacterial infections caused by Escherichia coli (E. coli) pose a serious threat to public health and safety. Therefore, there is an urgent need to develop a fast and accurate diagnostic device for early detection and prevention of bacterial contamination. In this study, we designed a visual cotton fabric-based detection biosensor that can target enzymes produced by E. coli metabolism and induce color changes. In addition, the system can be integrated with the naked eye, smartphones, and small spectrometers to analyze the generated signals for qualitative, semi-quantitative, and quantitative detection. The platform achieved a minimum detection limit of 537 cfu/mL for E. coli, a wide detection range of 10²-10⁶ cfu/mL, and a minimum detection time as low as 20 mins. The detection results of complex environmental samples showed that the system has excellent anti-ion interference and anti-pH interference behavior. This visual detection biosensor has great commercial application potential and can be widely used in real-time on-site detection due to its rapid, portable, anti-interference, and low-cost advantages.

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基于织物的可视化生物传感器，用于实时环境监测和食品安全

由大肠杆菌（E. coli）引起的食源性和水源性细菌感染对公众健康和安全构成严重威胁。因此，迫切需要开发一种快速、准确的诊断设备，用于早期检测和预防细菌污染。在这项研究中，我们设计了一种基于棉织物的可视检测生物传感器，它可以针对大肠杆菌新陈代谢产生的酶诱导颜色变化。此外，该系统还可与肉眼、智能手机和小型光谱仪集成，对产生的信号进行定性、半定量和定量检测分析。该平台对大肠杆菌的最低检测限为 537 cfu/mL，检测范围宽至 102-106 cfu/mL，最短检测时间低至 20 分钟。复杂环境样品的检测结果表明，该系统具有出色的抗离子干扰和抗 pH 干扰能力。这种可视检测生物传感器具有快速、便携、抗干扰、成本低等优点，具有很大的商业应用潜力，可广泛应用于现场实时检测。

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来源期刊

Journal of Hazardous Materials 工程技术-工程：环境

CiteScore

25.40

自引率

5.90%

发文量

3059

审稿时长

58 days

期刊介绍： The Journal of Hazardous Materials serves as a global platform for promoting cutting-edge research in the field of Environmental Science and Engineering. Our publication features a wide range of articles, including full-length research papers, review articles, and perspectives, with the aim of enhancing our understanding of the dangers and risks associated with various materials concerning public health and the environment. It is important to note that the term "environmental contaminants" refers specifically to substances that pose hazardous effects through contamination, while excluding those that do not have such impacts on the environment or human health. Moreover, we emphasize the distinction between wastes and hazardous materials in order to provide further clarity on the scope of the journal. We have a keen interest in exploring specific compounds and microbial agents that have adverse effects on the environment.