The development of real-time digital PCR technology using an improved data classification method

• DOI: 10.1016/j.bios.2021.113873
• Publication Date: 2021-12-08T16:40:39Z
• Authors: Jia Yao; Yuanyuan Luo; Zhiqi Zhang; Jinze Li; Chuanyu Li; Chao Li; Zhen Guo; Lirong Wang; Wei Zhang; Heming Zhao; Lianqun Zhou
• Keywords: Epstein-Barr Virus Infections; Herpesvirus 4, Human; Technology; Humans; Biosensing Techniques; 02 engineering and technology; Real-Time Polymerase Chain Reaction; 0210 nano-technology

For digital polymerase chain reaction (PCR), data classification is always a crucial task. The dynamic real-time amplification process information of each partition is always ignored in typical digital PCR analysis, which can easily lead to inaccurate outcomes. In this work, an integrated device that offers real-time chip-based digital PCR analysis was established. In addition, an enhanced process-based classification model (PAM) was built and trained. And then the device and the analytical model were employed in classification tasks for different concentrations of Epstein-Barr Virus (EBV) plasmid quantification assays. The results indicated that the real-time analysis device achieved a linearity of 0.97, the classification method was able to distinguish the false-positive curves, and the recognition error of positive wells was decreased by 64.4% compared with typical static analysis techniques when low concentrations of samples were tested. With these advantages, it is supposed that the real-time digital PCR analysis apparatus and the improved classification method can be employed to enhance the performance of digital PCR technology.