Parametric studies on droplet generation reproducibility for applications with biological relevant fluids

Area of Science:

• Microfluidics
• Biotechnology
• Cell Culture Technology

Background:

• Droplet-based microfluidics show great potential but lack reproducibility and stability, especially for long-term cell culture.
• Current methods often require surfactants, limiting their use in biological applications.
• Improving droplet generation is crucial for advancing microfluidic applications in research and industry.

Purpose of the Study:

• To develop and present novel microfluidic chips for highly reproducible and stable droplet generation.
• To investigate the impact of microfluidic chip design and flow parameters on droplet generation.
• To demonstrate the applicability of these chips for various biologically relevant media without surfactants.

Main Methods:

• Fabrication of microfluidic chips using plasma coating on polymer substrates.
• Systematic variation of microfluidic chip designs and flow rates (and ratios).
• Characterization of droplet generation reproducibility and stability using cell culture media.

Main Results:

• Plasma-coated polymer chips facilitate surfactant-free, stable, and highly reproducible droplet generation.
• Microfluidic design and flow parameters significantly influence droplet generation consistency.
• The developed chips are applicable to a wide range of bio(techno)logically relevant media.

Conclusions:

• Novel plasma-coated microfluidic chips overcome key limitations in droplet generation.
• These chips offer a robust platform for advanced applications, including long-term cell culture.
• The technology enhances the exploitation of droplet-based microfluidics in science and industry.