Controlled addition of new liquid component into surface droplet arrays by solvent exchange
Miaosi Li, Haitao Yu, Lei Bao, Brendan Dyett, Xuehua Zhang
JOURNAL OF COLLOID AND INTERFACE SCIENCE | ACADEMIC PRESS INC ELSEVIER SCIENCE | Published : 2019
HYPOTHESIS: Microscopic droplets integrating multiple functionalities are essential in the microcompartmentalized related reaction and applications. Solvent exchange is a simple approach for producing femtoliter surface droplets by the transit oversaturation created at the mixing front of a solution by a poor solvent. But it remains challenging to control the compositions in nanodroplets. Our hypothesis is the new liquid component can be added to the pre-formed surface droplets at certain ratios controlled by solvent exchange. EXPERIMENTS: In this work we investigate the growth of the droplets during addition of a new component by solvent exchange. Two-component droplets were formed on a mic..View full abstract
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Awarded by Australian Research Council
The authors acknowledge the support from the Australian Research Council (FT120100473, LP140100594), the Natural Sciences and Engineering Research Council of Canada (NSERC), Micro Nano Research Facility (MNRF) and the vibrational research laboratory in RMIT University. M.L. also acknowledges the Vice Chancellor Postdoctoral Fellowship from RMIT University.