Microfluidic quantification and separation of yeast based on surface adhesion

Area of Science:

• Microbiology
• Biotechnology
• Surface Science

Background:

• Fungal adhesion is critical in various fields, including infections, food production, and bioengineering.
• Current methods for quantifying yeast surface adhesion at a population scale are insufficient.

Purpose of the Study:

• To develop a robust method for quantifying yeast surface adhesion.
• To enable discrimination and separation of yeast strains based on adhesion strength.
• To investigate the impact of ionic strength and substrate hydrophobicity on yeast adhesion.

Main Methods:

• A novel microfluidic assay was designed and implemented.
• The assay differentiates and separates genetically related yeast strains by adhesion strength.
• Experiments were conducted to assess the effects of varying ionic strength and substrate hydrophobicity.

Main Results:

• The microfluidic assay successfully quantified yeast adhesion strength.
• The assay allowed for the discrimination and separation of yeast strains based on adhesion.
• Ionic strength and substrate hydrophobicity were shown to significantly influence yeast adhesion.

Conclusions:

• The developed microfluidic assay provides a powerful tool for population-scale quantification of yeast adhesion.
• This method facilitates rapid screening and fractionation of yeast based on adhesive properties.
• Applications include genetic protein engineering, development of anti-fouling surfaces, and understanding fungal pathogenesis.