Abstract
Rapid detection of plant viruses is crucial for ensuring the safety of agricultural production. In this study, a paper-based molecularly imprinted polymers (MIPs) sensor was developed for visual detection of tobacco mosaic virus (TMV). Two types of MIPs were synthesized as artificial antibodies: paper-based MIPs and monoclonal MIPs. The sandwich strategy achieved high sensitivity (with a limit of detection of 4.8 fM) and high selectivity (with an imprinting factor of 5.25) for TMV detection. This sensor eliminated the need for costly and unstable biological agents such as natural antibodies and DNA, enabling detection visible to the naked eye within 10–20 min. Overall, the paper-based MIPs sensor costs as little as 8.6 cents (1 cents for smaller sizes) and is easy to store and cut. This approach provides a new method for the rapid field detection of plant viruses such as TMV and is crucial for ensuring the safety of agricultural production.
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