Droplets

Droplet generators

Micronit has more than 10 years of experience in making droplet generators for all kinds of applications. Droplet generators are excellent tools for generating highly reproducible microsized droplets with much higher precision and repeatability than conventional methods.
By tuning the relative viscosities, interfacial tension, and velocities between the dispersed and the continuous phase droplets of almost any size can be created. Oil-in-water (O/W) droplets can be generated directly using glass chips. Water-in-oil droplets (W/O) are best formed in hydrophobic channels (coated glass). This to prevent droplets from sticking to the channel walls. Micronit can coat chips with an hydrophobic anti-stiction coating. You can find our series of droplet generators in our web store. 

Choosing  the right droplet generator for your application isn’t always easy. There are many variables which can affect the size, frequency and consistency of the droplets produced, including:

  • Channel dimensions and geometry
  • Flow actuation stability
  • Flow rates of each fluid, both relative and total
  • Channel wetting properties: hydrophobic (coated) or hydrophilic (uncoated)
  • Miscibility of the continuous (outer) and dispersive (inner) fluids
  • Viscosity and surface tension of the continuous (outer) and dispersive (inner) fluids
  • Surfactant type and concentration

Need some help with choosing the right droplet generator for your application?

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Parallel Droplet Generators

Microfluidic devices offer a qualitatively superior alternative to conventional macroscale batch processes for the production of highly monodispersed emulsions in a continuous fashion. By means of parallelisation, microstructured droplet generators allow high throughput production of monodisperse emulsions for applications in the pharmaceutical, cosmetic and food industry.

We offer a range of parallel droplet generators with hydrophilic (native glass) or hydrophobic (coated) channels, surfaces for both Oil-in-water (O/W) and Water-in-oil (W/O) systems to satisfy our customers’ needs for their high throughput emulsification applications. 

Our parallel droplet generators can be designed in a variety of geometries that meet our customers’ requirements. The high accuracy of our glass processing technologies combined with a wide range of instruments for high precision surface and size analysis, ensures a high quality product with very small size intrachannel  and frequency of production variation.