Ultrasensitive and rapid detection of organophosphates using a dual-signal naked-eye hydrogel sensor based on acetylcholinesterase inhibition
International Journal of Biological Macromolecules, ISSN: 0141-8130, Vol: 283, Issue: Pt 2, Page: 137778
2024
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Article Description
Accurate determination of pesticide residues is crucial for food safety. A self-calibration method was developed for dual-signal “naked-eye” detection of organophosphorus pesticides (OPs) using bifunctional gold nanozymes (AuNEs). OPs inhibit the cascade reaction of acetylcholinesterase/choline oxidase (AChE/CHO) to reduce hydrogen peroxide (H 2 O 2 ) production, which affects the AuNE-catalyzed color reaction and quenches the fluorescence of AuNEs with the assistance of Fe 2+. The multi-enzyme cascade system can be integrated into hydrogel sheets for smartphone-assisted digital, quantitative, and onsite detection of OPs in real food samples by analyzing the linear changes in colorimetric and fluorometric signals, which closely match liquid chromatography-mass spectrometry (LC-MS) results. This method displays a lowest ‘naked-eye’ detection concentration of 7 ppb, a wide linear range (0–2000 ng/mL), and particularly the advantage of anti-interference via self-calibration when one of the signals is abnormal.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S014181302408588X; http://dx.doi.org/10.1016/j.ijbiomac.2024.137778; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85209680204&origin=inward; http://www.ncbi.nlm.nih.gov/pubmed/39571860; https://linkinghub.elsevier.com/retrieve/pii/S014181302408588X
Elsevier BV
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