Surface treatments for adequate wetting

Emulseo provides easy-to-use hydrophobic surface treatments for microfluidic channel coating. These treatments optimize fluid flows in materials like PDMS, glass, COC, and PMMA.

Products:

Fluo-ST1

Hydrophobic surface treatment reagent to coat glass and polydimethylsiloxane (PDMS) surfaces. The surface treatment Fluo-ST1 from Emulseo is composed of fluoroalkylsilanes that are chemically reactive to plasma etched glass and PDMS surfaces.

Fluo-ST1 works with Emulseo’s surfactants and oils.

Fluo-ST2

Versatile surface treatment reagent to coat glass, PDMS, COC/COP, PMMA and PC.

The surface treatment Fluo-ST2 from Emulseo is a clear, low viscosity, low surface tension solution of a fluorosilane polymer carried in a hydrofluoroether solvent. The coating covalently bonds to a variety of surfaces including glass, PDMS, COC/COP, PMMA and PC and dries in a thin film with excellent hydrophobic properties. It allows a better performance and stability of aqueous droplets that form in fluorinated oils.

Fluo-ST2 works with Emulseo’s surfactants and oils.

Fluo-ST3

Surface treatment reagent compatible with a wide range of materials including glass, PDMS, COC/COP, PMMA and PC.

Fluo-ST3 is a fluorophilic surface treatment composed of a fluoroalkylsilane dissolved in a perfluorinated polyether solvent. Fluo-ST3 is a clear solution with low viscosity, low interfacial tension and compatible with a wide range of materials including glass, PDMS, COC/COP, PMMA and PC.

After treatment, a uniform layer covalently attaches to the treated surfaces, making the walls of the microfluidic channels hydrophobic and fluorophilic. This treatment allows a better formation and stability of droplets that form in fluorinated oils.

Fluo-ST3 works with Emulseo’s surfactants and oils.

Applications of hydrophobic surface treatments:

• Improving flow stability in microchannels.
• Suitable for diagnostics and pharmaceutical applications.