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MicroRNAs (miRNAs) are vital regulators in both plants and animals. Therefore, it is highly desirable to develop portable and user‐friendly biosensors for convenient and sensitive detection of miRNAs. Herein, a novel paper‐based electrochemical biosensor was intelligently engineered for the detection of plant miRNA based on a smart DNA walking machine and λ‐exonuclease (λ‐Exo)‐assisted target recycling...
Green plants and algae utilize complicated yet delicate structures to oxidize water into molecular oxygen while releasing electrons for dark reactions. The photocatalytic water oxidation reaction in photosystem II is challenging as it involves in transferring multiple electrons and protons and requires a large overpotential. Herein, for the first time, we report that conjugated ladder polymers with...
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