10B Micro nozzles

The behaviour of fluids on micro scales is very different from that on large scales, offering both new technological opportunities and new scientific challenges. The formation and precise control of large numbers of miniature fluid volumes enables the production of highly‐uniform microspheres for drug delivery, precisely controlled sprayed and atomized pharmaceuticals and aerosols, deposition of minute amounts of biofluids for medical analyses, high‐throughput high‐resolution inkjet printing, etc.

On the other hand, severe complications can arise from uncontrolled behavior of thin‐liquid films: contact‐line instabilities and nanobubbles compromise the reliability of immersion‐lithography processes and cause excessive wetting of inkjet‐nozzle plates, leading to malfunction. The inherent multiphysics and multiscale character of microfluids necessitate an aggregation of disparate knowledge and close public (knowledge) and private (application) cooperation. This programme focuses on two essential phenomena:

  1. Formation of microdroplets: This process is relevant for spray and jetting applications, the production of microspheres, and micro‐etching techniques.
  2. Control of thin liquid films: This process is relevant for all jetting and immersionlithography applications.

The programme connects expert scientific knowledge of microfluidic phenomena and modelling and simulation techniques to device and process development. The programme focuses on a selection of applications with direct relevance for the Dutch high‐tech industry.

Back to theme 10: Sensors and actuators

Foto: Bram Saeys. 9-6-2011, STW NanoNext Karel V Utrecht

Programme Director:
Prof. dr. ir. Herman Wijshoff (Eindhoven University of Technology)