A catalytic DNA circuit-programmed and enzyme-powered autonomous DNA machine for nucleic acid detection

Abstract

A catalytic DNA circuit was ingeniously engineered to harness the cleavage of a nicking endonuclease on a triple-stranded duplex DNA probe, autonomously actuating a successive enzyme-powered DNA machine for one-step, isothermal, and autocatalytic nucleic acid analysis. The detection performance could be tuned with or without the use of enzymes.