Affiliation(s): 1Clinical Medical College & Affiliated Hospital, Chengdu University, Chengdu 610106, China
2Department of Laboratory Medicine, Sichuan Medical Laboratory Clinical Medicine Research Center, West China Hospital, Sichuan University, Chengdu 610041, China
Sheng DING1*, Jing LI1*, Minglong YANG1*, Yujia SONG1, Xiangke NIU1, Mei LI2, Yao LUO2. DNA based one-pot TLAMP and PfAgo rapid assay biosensing platform for meat visualized authentication[J]. Journal of Zhejiang University Science B,in press.Frontiers of Information Technology & Electronic Engineering,in press.https://doi.org/10.1631/jzus.B2500745
@article{title="DNA based one-pot TLAMP and PfAgo rapid assay biosensing platform for meat visualized authentication", author="Sheng DING1*, Jing LI1*, Minglong YANG1*, Yujia SONG1, Xiangke NIU1, Mei LI2, Yao LUO2", journal="Journal of Zhejiang University Science B", year="in press", publisher="Zhejiang University Press & Springer", doi="https://doi.org/10.1631/jzus.B2500745" }
%0 Journal Article %T DNA based one-pot TLAMP and PfAgo rapid assay biosensing platform for meat visualized authentication %A Sheng DING1* %A Jing LI1* %A Minglong YANG1* %A Yujia SONG1 %A Xiangke NIU1 %A Mei LI2 %A Yao LUO2 %J Journal of Zhejiang University SCIENCE B %P %@ 1673-1581 %D in press %I Zhejiang University Press & Springer doi="https://doi.org/10.1631/jzus.B2500745"
TY - JOUR T1 - DNA based one-pot TLAMP and PfAgo rapid assay biosensing platform for meat visualized authentication A1 - Sheng DING1* A1 - Jing LI1* A1 - Minglong YANG1* A1 - Yujia SONG1 A1 - Xiangke NIU1 A1 - Mei LI2 A1 - Yao LUO2 J0 - Journal of Zhejiang University Science B SP - EP - %@ 1673-1581 Y1 - in press PB - Zhejiang University Press & Springer ER - doi="https://doi.org/10.1631/jzus.B2500745"
Abstract: Meat adulteration is a significant global food safety challenge, creating a pressing need for rapid and on-site detection technologies. Herein, we present an intelligent one-pot biosensing platform termed OTPA (One-pot TLAMP-PfAgo Assay) that integrates the rapid, isothermal amplification of turn-back loop primer-accelerated LAMP (TLAMP) with the sequence-specific detection of Pyrococcus furiosus Argonaute (PfAgo). This system features a clever heat-activatable design using microcrystalline wax to spatially separate reactions within a single tube, enabling contamination-free and streamlined operation. The OTPA assay achieves sensitive and specific detection, with limits of detection as low as 3×10-4 ng/µL for pork DNA and 2×10-4 ng/µL for beef DNA within 30 minutes. It successfully enables duplex target identification and has been validated with commercial meat products, showing perfect concordance with standard PCR-based qualitative detection. Notably, the result can be directly visualized under blue light, underscoring the substantial potential of this cost-effective and simple platform for point-of-care testing (POCT) and intelligent biosensing in food safety surveillance.
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