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Updated: Aug 12, 2025
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Clinical Microfluidic Chip Platform for the Isolation of Versatile Circulating Tumor Cells
Published on: October 13, 2023
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Microfluidic-Assisted CTC Isolation and In Situ Monitoring Using Smart Magnetic Microgels.
Amir Seyfoori1,2,3, Seyyed Ali Seyyed Ebrahimi2, Mohamadmahdi Samandari4
1Laboratory for Innovations in Micro Engineering (LiME), Department of Mechanical Engineering, University of Victoria, Victoria, BC V8P 5C2, Canada.
Small (Weinheim an Der Bergstrasse, Germany)
|January 31, 2023
Summary
This study introduces a novel microfluidic chip with soft micromagnet patterns to improve the capture efficiency of circulating tumor cells (CTCs) for early cancer diagnosis.
Area of Science:
- Biomedical Engineering
- Nanotechnology
- Cancer Research
Background:
- Early cancer diagnosis relies on detecting biomarkers like circulating tumor cells (CTCs) in body fluids.
- Current methods using immunomagnetic separation in microfluidic devices have limited efficiency due to weak magnetic forces.
- Improved CTC capture is crucial for cancer prognosis and monitoring disease progression.
Purpose of the Study:
- To develop a novel microfluidic system with enhanced magnetic field localization for improved CTC capture.
- To optimize microfluidic device design for high capture efficiency (CE) and throughput.
- To enable real-time monitoring of target cells for early cancer diagnosis and management.
Main Methods:
- Fabrication of soft micromagnet patterns with optimized geometry and magnetic material.
- Integration of micromagnet patterns into a bilayer microfluidic chip.
- Utilizing magnetic nano/hybrid microgels for CTC labeling.
- Combined numerical-experimental strategy for device design and optimization.
- Real-time on-chip monitoring of captured cells.
Main Results:
- The novel microfluidic design significantly enhances the capture efficiency (CE) of cancer cells.
- Achieved high purity of target cells, crucial for accurate diagnostic analysis.
- Demonstrated real-time, on-chip monitoring capabilities for captured biomarkers.
- The system offers a simple, low-cost, and robust solution for biomarker detection.
Conclusions:
- The developed microfluidic chip with enhanced magnetic field localization improves CTC capture.
- This technology provides a promising platform for early cancer diagnosis and monitoring.
- The combined numerical-experimental approach effectively optimizes microfluidic device performance.
- Offers a cost-effective and robust tool for advancing cancer biomarker research.
