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Centrifugal microfluidic platform with digital image analysis for parallel red cell antigen typing
Shaohua Ding1, Shengbao Duan1, Yezhou Chen1
1CAS Key Lab of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences. No. 88, Keling Road, Suzhou New District, Jiangsu Province, 215163, China; Jihua Laboratory, Foshan, China.
Talanta
|August 26, 2022
Summary
A new portable microfluidic device enables rapid red blood cell antigen typing. This automated system uses centrifugation and machine learning for accurate blood typing with minimal manual steps.
Area of Science:
- Biomedical Engineering
- Analytical Chemistry
- Hematology
Background:
- Red blood cell antigen typing is crucial for safe blood transfusions.
- Conventional methods are time-consuming and labor-intensive.
- There is a need for faster, more automated blood typing solutions.
Purpose of the Study:
- To develop a portable multichannel microfluidic device for parallel and digital red blood cell antigen typing.
- To reduce manual procedures and increase the speed and reliability of blood typing.
- To integrate sample handling, reaction, and analysis on a single chip.
Main Methods:
- A microfluidic disc with a zigzag metering channel for sample aliquoting.
- Sequential-step centrifugation protocol for antibody-red blood cell reactions.
- Machine learning algorithms (HOG and SVM) for automated agglutination analysis.
Main Results:
- Parallel identification of multiple red blood cell antigens in 1 minute.
- Automated agglutination determination with high accuracy (94.10% using HOG and SVM).
- Demonstrated a "sample-in and answer out" platform for red blood cell typing.
Conclusions:
- The microfluidic device offers a fast, reliable, and automated solution for red blood cell antigen typing.
- The system significantly reduces manual intervention compared to traditional methods.
- This technology has the potential to improve transfusion safety and efficiency.
