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This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).
Droplet generation in a flow focus chip from PDMS with a channel width and height of 200 and 104 μm, respectively. The flow rates of the water and oil phase were 0.1 and 5 μL/min, respectively. The white lines indicate the channel walls.