Aqueous droplet manipulation by optically induced Marangoni circulation
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- Hu, W. & Ohta, A.T. Microfluid Nanofluid (2011) 11: 307. doi:10.1007/s10404-011-0797-2
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The manipulation of picoliter droplets is demonstrated using optically induced microscale circulatory flows. The circulation results from Marangoni effects induced by optical heating from light patterns created by a computer projector. Manipulation of single droplets and parallel manipulation of multiple droplets are achieved with induced forces of up to 1 nN and an average resolution of 146.5 μm.