Microfluidics for Kinetic Inspection of Phase Diagrams

We present a set of microfluidic tools developed for phase diagram studies. These tools are based on the one hand on the formation of nanoliter-sized drops which undergo a complex thermal history and on the other hand, on controlled evaporation used to concentrate a solution. We describe their use on crystallization from solution and we evidence that the small scale at which they work offers unprecedented control on the kinetic pathway followed in the experiments, and also helps to identify specific phase transitions that would be hidden in macroscopic conditions.

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