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Updated: Apr 20, 2026

Amplification of Escherichia coli in a Continuous-Flow-PCR Microfluidic Chip and Its Detection with a Capillary Electrophoresis System
Published on: November 21, 2023
Electrophoresis of periodontal pathogens in poly(ethyleneoxide) solutions with uncoated capillary
Zhenqing Li1, Ronglin Yang1, Qi Wang1
1Engineering Research Center of Optical Instrument and System, Ministry of Education, Shanghai Key Laboratory of Modern Optical System, University of Shanghai for Science and Technology, Shanghai 200093, China.
Abstract:
Periodontitis is a prevalent inflammatory disease caused by different species of anaerobic bacteria such as Porphyromonas gingivalis (P.g), Treponema denticola (T.d), and Tannerella forsythia (T.f). We compared the separation result of DNA ladders in hydroxyethyl cellulose, poly(ethyleneoxide) (PEO), and polyethylene glycol and analyzed the effect of polymer concentration, electric field, and temperature of the background electrolyte on the separation performance. Results demonstrated that there was a linear relationship (R=0.942) for 100 to 700bp of DNA and its migration time. Finally, the polymerase chain reaction products of P.g, T.d, and T.f were successfully identified within 8.5 min in 0.5% PEO with uncoated capillary.
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