DNAzyme-Based Target-Triggered Rolling-Circle Amplification for High Sensitivity Detection of microRNAs.

Sensors (Basel)

State Key Laboratory of Marine Resource Utilization in South China Sea, College of Materials Science and Engineering, Hainan University, Haikou 570228, China.

Published: April 2020

MicroRNAs regulate and control the growth and development of cells and can play the role of oncogenes and tumor suppressor genes, which are involved in the occurrence and development of cancers. In this study, DNA fragments obtained by target-induced rolling-circle amplification were constructed to complement with self-cleaving deoxyribozyme (DNAzyme) and release fluorescence biomolecules. This sensing approach can affect multiple signal amplification permitting fluorescence detection of microRNAs at the pmol L level hence affording a simple, highly sensitive, and selective low cost detection platform.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7180602PMC
http://dx.doi.org/10.3390/s20072017DOI Listing

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