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Updated: May 14, 2026
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Patterning of Microorganisms and Microparticles through Sequential Capillarity-assisted Assembly
Published on: November 4, 2021
High yield patterning of single cells from extremely small populations.
Andrea Faenza1, Massimo Bocchi, Enri Duqi
1ARCES-University of Bologna, Bologna, Italy. afaenza@arces.unibo.it
Analytical Chemistry
|February 20, 2013
Summary
This study introduces a novel platform for precise single-cell handling from very small populations using dielectrophoresis. The system achieves high yield and low cell loss, enabling controlled cell patterning for biological assays.
Area of Science:
- Biotechnology
- Cell Biology
- Microfluidics
Background:
- Biological assays often require single-cell isolation and processing.
- Handling extremely low-count cell populations presents challenges in efficiency and cell loss.
Purpose of the Study:
- To develop a platform for deterministic single-cell handling from minute cell populations.
- To enable efficient processing and analysis of cells with minimal loss.
Main Methods:
- Utilized dielectrophoresis for precise cell positioning in microchannels.
- Developed modules for flow-through processing and deterministic patterning in open microwells.
- Analyzed K562 cells flowing at speeds up to 100 μm/s.
Main Results:
- Achieved 83% yield for transferring small cell drops (average 15 cells) to the microchannel.
- Demonstrated 100% yield in patterning cells into microwells.
- Successfully isolated single cells and created predetermined cell clusters.
- Confirmed cell proliferation from recovered cells with growth rates comparable to controls.
Conclusions:
- The developed platform offers efficient and deterministic single-cell handling for low-count populations.
- This technology is suitable for applications requiring precise cell manipulation and analysis.
- The system minimizes cell loss, crucial for rare cell studies and stem cell processing.
