Abstract
Light is used to dynamically control the pattern of electroosmotic flow in a microfluidic channel. One wall of the channel is formed by a photoconductor film in a specific geometry. Illumination of this surface results in an increase of the conductivity that modifies the structure of the electric field inside the channel. A dramatic change of the electroosmotic flow pattern can be achieved. This approach provides useful capabilities for the manipulation of fluids in microfluidic systems like directing flow and mixing.
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This work was supported by grant Országos Tudományos Kutatási Alap NK72375.
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Oroszi, L., Dér, A., Kirei, H. et al. Manipulation of microfluidic flow pattern by optically controlled electroosmosis. Microfluid Nanofluid 6, 565–569 (2009). https://doi.org/10.1007/s10404-008-0346-9
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DOI: https://doi.org/10.1007/s10404-008-0346-9