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Published on: October 6, 2017
High-resolution nucleic acid detection using online polyacrylamide gel electrophoresis platform
Zihao Wang1, Yiren Cao2, Zixian Yu1
1School of Sensing Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.
Online polyacrylamide gel electrophoresis (OPAGE) simplifies nucleic acid detection by integrating real-time monitoring and imaging. This advanced technique enhances separation resolution and offers a promising alternative for high-quality nucleic acid analysis.
Area of Science:
- Biochemistry
- Molecular Biology
- Analytical Chemistry
Background:
- Polyacrylamide gel electrophoresis (PAGE) is a standard method for nucleic acid separation.
- Traditional PAGE suffers from complex detection and offline analysis, leading to band broadening and reduced resolution.
Purpose of the Study:
- To develop an integrated online PAGE (OPAGE) platform to overcome the limitations of traditional PAGE.
- To enable real-time monitoring and immediate imaging of nucleic acid separation.
Main Methods:
- Integration of a gel electrophoresis apparatus with a gel imaging system to create the OPAGE platform.
- Utilized synthetic DNAs of varying lengths to test the platform's performance.
Main Results:
- OPAGE enhanced the number of theoretical plates by 32-64%, significantly improving separation resolution.
- Demonstrated a wide dynamic range (0.1-12.5 ng/μL) and a low limit of detection (0.08 ng/μL DNA).
- Enabled real-time monitoring and immediate post-electrophoresis imaging.
Conclusions:
- The OPAGE platform offers a simplified and high-resolution method for nucleic acid detection and quantification.
- OPAGE presents a promising advancement over traditional PAGE for various molecular biology applications.
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