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An automated microfluidic system with one-dimensional beads array for multiplexed torch detection at point-of-care
Hao Li1, Shengda Yu1, Dong Wang2
1Institute of Microfluidic Chip Development in Biomedical Engineering, College of Information Science and Technology, Beijing University of Chemical Technology, 100029, Beijing, China.
Biomedical Microdevices
|November 3, 2022
Summary
This study presents an automated microfluidic system for multiplexed TORCH testing. The system enables rapid and accurate detection of five TORCH infections simultaneously at the point-of-care.
Area of Science:
- Biomedical Engineering
- Clinical Diagnostics
- Microfluidics
Background:
- TORCH infections pose significant risks during pregnancy.
- Current diagnostic methods can be time-consuming and complex.
- Multiplexed detection offers efficiency in diagnosing multiple pathogens.
Purpose of the Study:
- To develop an automated microfluidic system for multiplexed TORCH detection.
- To enable point-of-care testing (POCT) for TORCH infections.
- To achieve sensitive, accurate, and rapid simultaneous detection of five TORCH pathogens.
Main Methods:
- Development of a microfluidic chip with a 1D array of five functionalized beads.
- Automated liquid handling module for chemiluminescence immunoassay.
- Utilizing a ram pump for precise reagent delivery and fluid control.
- Integrated heating and CMOS camera for sensitive image acquisition and analysis.
Main Results:
- Simultaneous detection of Toxoplasmosis (TOX), Rubella (RUB), Cytomegalovirus (CMV), Herpes Simplex Virus I (HSV-I), and HSV-II.
- Demonstrated efficient, sensitive, and accurate multiplexed TORCH detection.
- The system achieved reduced detection time and prevented reagent backflow.
Conclusions:
- The automated microfluidic system provides a convenient and effective solution for multiplexed TORCH testing.
- This technology holds promise for improving TORCH diagnostics in point-of-care settings.
- The integrated system enhances diagnostic capabilities for pregnant women and newborns.
