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We report here a label-free and sensitive electrochemical method for probing Citrate synthase (CS) activity based on detailed investigations into the nucleic acid-mimicking coordination polymer (CP) formed from the coenzyme A (CoA)-Ag(I) repeat units. Our biosensing approach provides an especial and significant detection mechanism: CS can catalyze the essential condensation reaction between acetyl-coenzyme...
A novel label-free, rapid, cost-effective, and highly sensitive fluorometric sensor has been constructed for the detection of acetylcholinesterase (AChE) activity and its inhibitor based on the fluorescence quenching of DNA-templated copper/silver nanoclusters (DNA-Cu/AgNCs). In this assay, AChE catalyzes the hydrolysis of acetylthiocholine (ATCh) to form thiocholine which induces fluorescence quenching...
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