Developing centrifugal force real-time digital PCR for detecting extremely low DNA concentration

Abstract Digital PCR (dPCR) is a technique for absolute quantification of nucleic acid molecules. To develop a dPCR technique that enables more accurate nucleic acid detection and quantification, we established a novel dPCR apparatus known as centrifugal force real-time dPCR (crdPCR). This system is...

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Main Authors: Jong Cheol Shin, Jeong-Yeon Jeong, Seon Gyu Son, Sang-Haeng Choi, Ho-Chul Nam, Tae-Ho Yoon, Hyo-Jun Kim, Dong-Geun Choi, Hwarang Lee, Ukyeol Lee, Seon-Mo Yang, Il Kang, Dae-Young Jung, Han Woo Lee, Moon-Keun Lee, Tae Jae Lee, Geehong Kim, Han-Oh Park, Sung-Woon Lee
Format: Article
Language:English
Published: Nature Portfolio 2024-05-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-024-62199-5
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Summary:Abstract Digital PCR (dPCR) is a technique for absolute quantification of nucleic acid molecules. To develop a dPCR technique that enables more accurate nucleic acid detection and quantification, we established a novel dPCR apparatus known as centrifugal force real-time dPCR (crdPCR). This system is efficient than other systems with only 2.14% liquid loss by dispensing samples using centrifugal force. Moreover, we applied a technique for analyzing the real-time graph of the each micro-wells and distinguishing true/false positives using artificial intelligence to mitigate the rain, a persistent issue with dPCR. The limits of detection and quantification were 1.38 and 4.19 copies/μL, respectively, showing a two-fold higher sensitivity than that of other comparable devices. With the integration of this new technology, crdPCR will significantly contribute to research on next-generation PCR targeting absolute micro-analysis.
ISSN:2045-2322