Integrated Microfluidic Pumps - by Blue Light Actuation of Liquid Crystal Network Films

Christina Schmidleithner, Johannes Rudolf Peham

Publikation: Posterpräsentation ohne Beitrag in TagungsbandPosterpräsentation ohne Eintrag in Tagungsband

Abstract

As lab-on-a-chip devices aim to incorporate complex and multi-step microfluidic workflows, active fluid control within these platforms is gaining significance. To that end, we aim to develop a photoactive micropump for integration into disposable microfluidic cartridges. As actuating mechanism, we select splay oriented liquid crystal networks (LCN) stimulated with 455 nm blue LED light. Upon illumination, the LCN film bends and it reverts back to its original state in the dark. In a pumping setup, this action deflects the membrane of a pumping chamber and two passive check-valves ensure directional fluid flow. Thus, fluid volumes can be manipulated in a non-contact actuation setup, potentially enabling automated workflows from sample preparation to analysis

OriginalspracheEnglisch
PublikationsstatusVeröffentlicht - 4 Juni 2023

Research Field

  • Molecular Diagnostics

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