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[ACS Appl. Mater. Interfaces] Microfluidic Generation of High-Viscosity Droplets by Surface-Controll


Abstract:

Fluids containing high concentration polymers, sols, nanoparticles, etc. usually have high viscosities, and high-viscosity fluids are difficult to be encapsulated into uniform droplets. Here we report a surface-controlled breakup method to generate droplets directly from various aqueous and non-aqueous fluids with viscosities of 1.0 to 11.9 Pa s and a dispersed-to-continuous viscosity ratio up to 1,000, while the volume fraction of droplets up to 50% can be achieved. It provides a straightforward method to encapsulate high viscosity fluids, in a well-controlled manner in the rapid developing droplet-based applications, including materials synthesis, drug delivery, cell assay, and bio-engineering, etc.

Haosheng Chen, Jia Man, Zhongnan Li, and Jiang Li

ACS Appl. Mater. Interfaces, Just Accepted Manuscript

DOI: 10.1021/acsami.7b03438

Publication Date (Web): June 7, 2017

Copyright © 2017 American Chemical Society

Link: http://pubs.acs.org/doi/abs/10.1021/acsami.7b03438

#06112017 #dropbasedmicrofluidics #physics #MaterialScience

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