Related Experiment Video
Updated: May 20, 2026
09:45
Microfluidics-based High-throughput Circulating Tumor Cell Sorting and Single-cell Sequencing Technology
Published on: November 14, 2025
Continuous labeling of circulating tumor cells with microbeads using a vortex micromixer for highly selective
Ming Xian Lin1, Kyung-A Hyun, Hui-Sung Moon
1Nanomedical National Core Research Center, Yonsei University, South Korea.
Biosensors & Bioelectronics
|July 13, 2012
Summary
This study introduces a novel method to isolate circulating tumor cells (CTCs) by coating them with microbeads, significantly improving detection and preventing metastasis. This technique ensures accurate discrimination from leukocytes for better cancer diagnostics.
Area of Science:
- Oncology
- Biotechnology
- Microfluidics
Background:
- Circulating tumor cells (CTCs) are key drivers of cancer metastasis.
- Current CTC isolation methods face challenges due to size overlap with leukocytes, leading to cell loss.
- Accurate CTC detection is crucial for effective cancer management and treatment monitoring.
Purpose of the Study:
- To develop a novel, continuous method for efficient and selective isolation of CTCs.
- To overcome the limitations of size-based CTC isolation techniques.
- To enhance the detection and analysis of CTCs for improved cancer diagnostics.
Main Methods:
- A microfluidic mixer was utilized to continuously label CTCs with microbeads.
- The strategy involves amplifying CTC size via microbead coating for clear differentiation from leukocytes.
- Taylor-Gortler vortices were generated in the microfluidic device to facilitate efficient bead conjugation.
Main Results:
- CTCs were successfully and continuously coated with anti-epithelial cell adhesion molecule-conjugated beads.
- The microbead-enhanced CTCs were effectively isolated using a micro-filter.
- Leukocytes were successfully excluded from the isolated CTCs, demonstrating high specificity.
Conclusions:
- The proposed microbead-based, continuous labeling strategy enables superior isolation of CTCs.
- This novel approach significantly improves the discrimination of CTCs from leukocytes.
- The developed microfluidic system offers a promising tool for enhanced cancer metastasis research and diagnostics.
