Controllable microfluidic production of gas-in-oil-in-water emulsions for hollow microspheres with thin polymer shells.

Chen, Ran; Dong, Peng-Fei; Xu, Jian-Hong; Wang, Yun-Dong; Luo, Guang-Sheng · Lab Chip · 2012

basic_science · Level V

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Abstract

Here we developed a simple and novel one-step approach to produce G/O/W emulsions with high gas volume fractions in a capillary microfluidic device. The thickness of the oil layer can be controlled easily by tuning the flow rates. We successfully used the G/O/W emulsions to prepared hollow microspheres with thin polymer shells.