Nanocoatings for microfluidics

Glass and (thermoplastic) polymers are widely used for the fabrication of microfluidic chips. However, proteins tend to adsorb to these materials, causing biofouling and related issues. Moreover, most polymers require hydrophilic surface modification to facilitate the capillary flow of biological fluids through the chip. These problems can be overcome by applying a hydrophilic and antifouling nanocoating to the channel wall.

Surfix’s Hydroix technology enables the surface modification of all common microfluidic materials. Our nanocoatings ensure excellent and durable surface properties.


Besides uniform surface modification of microfluidic devices, patterned nanocoatings are also possible, enabling advanced applications. For example, by combining hydrophobic and hydrophilic areas, the flow of liquids can be controlled and directed. Another example is the generation of double emulsions in a single device, which requires a combination of hydrophobic and hydrophilic channels.


  • coating of all common microfluidic materials
  • tuneable surface properties
  • stable nanocoating due to chemical bonding
  • compatible with common bonding processes
  • advanced microfluidic applications