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Handheld recirculation system and customized media for microfluidic cell culture.
Nobuyuki Futai1, Wei Gu, Jonathan W Song
1Department of Biomedical Engineering, University of Michigan, 2115 Gerstacker Bldg., 2200 Bonisteel Blvd., Ann Arbor, Michigan 48109-2099, USA.
Lab on a Chip
|December 24, 2005
Summary
This study introduces a portable microfluidic system for simplified, incubator-free cell culture and long-term imaging. It enables continuous visual monitoring of cell proliferation for over two weeks without medium exchange.
Area of Science:
- Biotechnology
- Cell Biology
- Microfluidics
Background:
- Long-term cell culture typically requires specialized equipment like incubators.
- Monitoring cell proliferation over extended periods can be challenging.
- Carbonate-dependent cells require specific atmospheric conditions (e.g., CO2) for optimal growth.
Purpose of the Study:
- To develop a portable, simplified system for long-term cell culture and imaging.
- To enable incubator-free culture of carbonate-dependent cells.
- To demonstrate continuous visual monitoring of cell proliferation.
Main Methods:
- A palm-sized microfluidic recirculation system was designed using Braille display modules and a transparent heater.
- Customized media, specifically Leibovitz's L-15 medium, was used to eliminate the need for exogenous carbon dioxide.
- Time-lapse imaging was employed to record cell proliferation over two weeks.
Main Results:
- The microfluidic system demonstrated portability, mechanical stability, and optical accessibility.
- Incubator-free culture of C2C12 myoblasts and MC3T3-E1 osteoblasts was achieved for over two weeks in ambient atmosphere.
- Continuous visual monitoring of cell proliferation was successfully performed without medium exchange.
Conclusions:
- The developed microfluidic system offers a simplified approach for long-term cell culture and imaging.
- This technology facilitates incubator-free culture of carbonate-dependent cells, expanding possibilities for portable cell culture.
- The system enables new avenues for long-term, continuous visual monitoring of cellular processes.