STRUCTURED PDMS USED AS ACTIVE ELEMENT FOR A BIOMIMETICS INSPIRED FLUID TRANSPORTER

Authors

  • Alexander Rockenbach
  • Uwe Schnakenberg

DOI:

https://doi.org/10.14311/CTJ.2015.2.%25x

Keywords:

PDMS, microfluidics, fluid transport, particle transport, biomimetics, cilia

Abstract

A pneumatically actuated fluid transporter to transport fluids along surfaces is introduced. The biomimetic approach is based on the transportation principle of fluids by cilia or comb-row arrays due to the generation of metachronal waves. Rows of PDMS flaps which mimic comb-rows are asymmetrically positioned on flexible membranes. Each membrane is deflected by applying a defined pressure profile to achieve a metachronal wave on the surface. The simulations of the membrane behavior as well as a description of the concept by applying metachronal waves to the artificial comb row arrays are presented. The proof-of-concept shows fluid transport of up to 64 μm/s near the flap tips.

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Original Research