STRUCTURED PDMS USED AS ACTIVE ELEMENT FOR A BIOMIMETICS INSPIRED FLUID TRANSPORTER
Keywords:PDMS, microfluidics, fluid transport, particle transport, biomimetics, cilia
AbstractA 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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