Microfluidic production of monodisperse functional o/w droplets and study of their reversible pH dependent aggregation behavior
Microfluidic production of monodisperse functional o/w droplets and study of their reversible pH dependent aggregation behavior
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DOI：
10.1039/c1sm05087g
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发表时间：
2011-01-01
期刊：
影响因子：
3.4
通讯作者：
Huck, Wilhelm T. S.
中科院分区：
文献类型：
--
作者：
Bauer, Wolfgang-Andreas C.;Kotar, Jurij;Huck, Wilhelm T. S.
We report the use of microfluidics for the production of monodisperse oil-in-water droplets functionalized by a pH responsive branched co-polymer surfactant. The droplet functionality facilitates the reversible aggregation of the micron-sized droplets into macroscopic engineered emulsions in response to solution pH changes. Co-injection of dye-loaded and non-dyed droplets into acidic water yields bi-colored dumbbell-shaped aggregates that disassemble into their constituent droplet building blocks upon an increase in pH. Optical tweezers are used to study and quantify the pH dependent interactions of individual droplets.
