期刊
LAB ON A CHIP
卷 10, 期 18, 页码 2458-2463出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c004853d
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资金
- Singapore-MIT Alliance
- Inter-University Project (IUP) initiatives
- NUS FRC [R-279-000-300-122]
We present a new and general scheme for analytical applications of droplet-based microfluidics in which flowing droplets function not only as isolated reaction flasks, but are also capable of on-drop separation and sensing. To demonstrate this, we choose ionic liquids as designer fluids whose chemical and physical properties can be tailored in task-specific fashion. We create aqueous-ionic liquid compound droplets with tunable structures using an imidazolium-based ionic liquid, and present two analytical applications-separation of a binary aqueous mixture of organic dyes and dynamic pH sensing-to highlight the salient features of this scheme. By combining designer fluids with designer microfluidic emulsions, our work opens up a rich space of exploration for analytical microfluidics.
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