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Cited by 358

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A CRISPR–Cas9-triggered strand displacement amplification method for ultrasensitive DNA detection

Open access
Zhou, Wenhua, Hu, Li, Ying, Liming, Zhao, Zhen, Chu, Paul K., Yu, Xue-Feng·2018·Nature Communications

Abstract

Although polymerase chain reaction (PCR) is the most widely used method for DNA amplification, the requirement of thermocycling limits its non-laboratory applications. Isothermal DNA amplification techniques are hence valuable for on-site diagnostic applications in place of traditional PCR. Here we describe a true isothermal approach for amplifying and detecting double-stranded DNA based on a CRISPR–Cas9-triggered nicking endonuclease-mediated Strand Displacement Amplification method (namely CRISDA). CRISDA takes advantage of the high sensitivity/specificity and unique conformational rearrangements of CRISPR effectors in recognizing the target DNA. In combination with a peptide nucleic acid (PNA) invasion-mediated endpoint measurement, the method exhibits attomolar sensitivity and single-nucleotide specificity in detection of various DNA targets under a complex sample background. Additionally, by integrating the technique with a Cas9-mediated target enrichment approach, CRISDA exhibits sub-attomolar sensitivity. In summary, CRISDA is a powerful isothermal tool for ultrasensitive and specific detection of nucleic acids in point-of-care diagnostics and field analyses.

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Metadata

Authors
Zhou, W., Hu, L., Ying, L., Zhao, Z., Chu, P. K., & Yu, X.-F.
Venue
Nature Communications
Published
2018-11-27
Volume
9
Issue
1
Pages
5012-5012
ISSN
2041-1723 (ISSN-L)
OpenAlex
W2901552404
Cited by
358
References
8
FWCI
9.02
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: A CRISPR–Cas9-triggered strand displacement amplification method for ultrasensitive DNA detection. https://app.cochat.ai/papers/10.1038/s41467-018-07324-5
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Zhou, W., Hu, L., Ying, L., Zhao, Z., Chu, P. K., & Yu, X.-F. (2018). A CRISPR–Cas9-triggered strand displacement amplification method for ultrasensitive DNA detection. Nature Communications. https://doi.org/10.1038/s41467-018-07324-5

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