Abstract
Because of the outstanding contribution in genome editing, CRISPR has undoubtedly become the most popular technology around the world and two pioneers are awarded the Nobel Prize in Chemistry this year. Besides, along with the discovery of nonspecific trans-cleavage activities of several Cas proteins such as Cas12 and Cas13, many CRISPR-based molecular diagnostic systems have been successfully created, showing advantages in sensitivity, specificity and operation convenience. Among them, systems with Cas12, which targets DNA and trans-cleaves single-stranded DNA probes, are both simple and highly efficient. Here in this review, we mainly focus on the Cas12-based methods and briefly discuss their applications in nucleic acids detection and beyond.
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