Abstract
Athermoresponsive molecularly imprinted hydrogel sensor was constructed for the specific selective recognition of enterovirus 71 (EV71). Due to the introduction of thethermosensitive monomer N-isopropylacrylamide (NIPAM), when the imprinted hydrogel is incubated with the virus at 37℃, the surface specific imprinting cavity will specifically recognize and capture the target virus EV71. When the temperature rises to 45℃, the combined EV71 is rapidly released due to changes in the shape and function of the imprinted sites. The MIP hydrogel-based viral sensor developed recognized, captured, and released the target virus in a non-invasive way. The imprinting factor of the target virus was 5.2, suggesting high selectivity, and the detection limit was 7.1 fM, suggesting high sensitivity. Detection was rapid, as adsorption equilibrium was achieved within 30 min. This method provides a new sustainable avenue for the simple and rapid detection of viruses.
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