Electrochemical Detection of Genomic DNA Utilizing Recombinase Polymerase Amplification and Stem-Loop Probe.

ACS Omega

Department of Fibre and Polymer Technology; School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Tekninkringen 56-58, SE-100 44 Stockholm, Sweden.

Published: June 2020

Nucleic acid tests integrated into digital point-of-care (POC) diagnostic systems have great potential for the future of health care. However, current methods of DNA amplification and detection require bulky and expensive equipment, many steps, and long process times, which complicate their integration into POC devices. We have combined an isothermal DNA amplification method, recombinase polymerase amplification, with an electrochemical stem-loop (S-L) probe DNA detection technique. By combining these methods, we have created a system that is able to specifically amplify and detect as few as 10 copies/μL DNA with a total time to result of 70-75 min.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7271026PMC
http://dx.doi.org/10.1021/acsomega.0c00341DOI Listing

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