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[Chemical Engineering Journal] Preparation of microparticles through co-flowing of partially miscibl


Abstract:

Monodisperse microparticles find applications in a wide range of areas. Generation of such particles of several microns in size at a large scale is a difficult task. This paper reports a proof of concept using a microfluidic device that coaxially flows partially miscible liquids for the production of microparticles. The approach makes use of both the physical forces of the process and the chemical properties of the liquid systems that allows for careful control of the mixing and droplet formation processes. Initial results show that, with this approach, particles with a reasonably narrow size distribution can be produced and liquid miscibility can be used as an additional avenue to manipulate the mean particle size and morphology.

Yinghe He a, b, Sarah Battat b, c, Jing Fan b, d, Alireza Abbaspourrad b, e, David A. Weitz b a College of Science and Engineering, James Cook University, Douglas, Queensland 4811, Australia b School of Engineering and Applied Sciences, and Department of Physics, Harvard University, Cambridge, MA 02138, USA c Department of Physics, Princeton University, Jadwin Hall, Princeton, NJ 08544, USA d Department of Mechanical Engineering, The City College of New York, NY 10031, USA e Department of Food Science, Cornell University, Ithaca, NY 14853, USA Received 27 December 2016, Revised 13 March 2017, Accepted 14 March 2017, Available online 16 March 2017

http://dx.doi.org/10.1016/j.cej.2017.03.059

Link: http://www.sciencedirect.com/science/article/pii/S138589471730400X

#03212017 #microparticle

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