An Easy-to-Use Polystyrene Microchip-based Cell Culture System.

Area of Science:

• Biotechnology
• Cell Biology
• Microfluidics

Background:

• Microfluidic systems offer advantages for cell culture.
• Culturing difficult cell types, like Macaca mulatta RF/6A 135 vascular endothelial cells, presents challenges in traditional microfluidic setups.
• The need for specialized equipment like CO2 incubators can increase costs and complexity.

Purpose of the Study:

• To develop an integrated, low-cost, and user-friendly microfluidic cell culture system.
• To enable the culture of challenging vascular endothelial cells without a CO2 incubator.
• To establish optimal conditions for stable and confluent cell culture within a microfluidic device.

Main Methods:

• Development of a microfluidic system comprising a polystyrene microchip, polytetrafluoroethylene valve, air bubble trap, and indium tin oxide temperature controller.
• Validation of valve pressure resistance (3 MPa) using a manometer.
• Determination of optimal cell coating conditions for Macaca mulatta RF/6A 135 vascular endothelial cells.

Main Results:

• Successful implementation of a microfluidic system for culturing difficult vascular endothelial cells.
• Achieved stable, confluent cell culture within one week under optimized conditions.
• Demonstrated the system's ability to function without a CO2 incubator.

Conclusions:

• The developed microfluidic system is practical, low-cost, and easy to use.
• It facilitates the culture of challenging cell types, overcoming limitations of traditional microfluidic chips.
• The system holds potential for low-cost screening, circulatory cell culture, and cell biology research platforms.