13 May 2011 Scalable fabrication of micro- and nano-particles utilizing the Rayleigh instability in multi-material fibers
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Abstract
We describe a novel fabrication method for producing polymer, glass, and metal micro- and nano-particles whose diameters range from 200 microns to under 50 nanometers. This method relies on the Rayleigh capillary instability in a multi-material fiber. The fiber core is made of the target material and has size close to the desired particle diameter embedded in a sacrificial polymer matrix. The fiber temperature is elevated to reduce the core viscosity and the Rayleigh instability results in the breakup of the core into a periodic string of spherical particles.
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S. Shabahang, J. Kaufman, A. F. Abouraddy, "Scalable fabrication of micro- and nano-particles utilizing the Rayleigh instability in multi-material fibers", Proc. SPIE 8031, Micro- and Nanotechnology Sensors, Systems, and Applications III, 80312O (13 May 2011); doi: 10.1117/12.883853; https://doi.org/10.1117/12.883853
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