Precision ejection of microfluidic droplets into air with a superhydrophobic outlet.
Precision ejection of microfluidic droplets into air with a superhydrophobic outlet.
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DOI：
10.1039/d0lc01327g
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发表时间：
2021-04-20
期刊：
影响因子：
6.1
通讯作者：
Abate AR
中科院分区：
文献类型：
--
作者：
Zhang P;Chang KC;Abate AR
Dispensing micron-scale droplets from a suspended nozzle is important for applications in bioprinting, analytical chemistry, and pharmaceutical formulation. Here, we describe a general approach to eject droplets from microfluidic devices using superhydrophobic patterning; this facilitates release of wetted fluids, allowing droplets to break contact with channel surfaces and travel along regular paths to achieve a printing accuracy of ~ 3 μm. We demonstrate the utility of the approach by using it to print droplets of varied composition from a microfluidic mixing device. Our approach is compatible with common fabrication techniques making it applicable to devices configured for diverse applications. We describe a general approach to controllably and precisely eject droplets of tunable composition from microfluidic devices using superhydrophobic patterning.
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