Monodisperse Femto- to Atto-liter Droplet Formation Using a Nano-Microchannel Interface


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Shui, Lingling and Berg, Albert van den and Eijkel, Jan C.T. (2009) Monodisperse Femto- to Atto-liter Droplet Formation Using a Nano-Microchannel Interface. In: MicroTAS 2009, Thirteenth International Conference on Miniaturized Systems for Chemistry and Life Sciences, 1-5 Nov 2009, Jeju, Korea (pp. pp. 1425-1427).

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Abstract:We demonstrate the production of sub-micrometer diameter monodisperse droplets by using a nano-micro channel interface. A perfectly steady nanoscopic liquid filament can be formed by a geometric confinement which eventually gives rise to a stable production of nearly perfectly monodisperse droplets. In a certain range of physical parameters and geometrical configurations, the liquid filament size and therefore the droplet size is determined by the nanochannel geometry, mainly its height which determines the Laplace pressure. Droplet diameters of 0.7~3.5 m (aL~fL volume) have been produced using different size nanochannels.

Item Type:Conference or Workshop Item
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Electrical Engineering, Mathematics and Computer Science (EEMCS)
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