Generate Highly Spherical Micro and Nano Spheres
Scalable production Specifiable sizing Smaller-sized spheres Can produce complex structures: Janus particles, beach ball particles Prevents agglomeration
Controlled-release drug delivery Chemical and biological catalysis Pigment suspension and colloids: cosmetics, paints Optical and acoustic meta-materials Optical-resonance-based pathogen detection
Particles are created from multi-material fibers drawn near the plasticity temperature, ΓÇ£meltingΓÇØ the core into an evenly-spaced sequence of uniform droplets while still encased in an unaffected outer layer of a higher softening temperature material. The breakup process of the core is not based on chemistry, but on the physical parameters of viscosity and surface tension in the presence of specifically calculated temperature as determined by the Plateau-Rayleigh instability. As such, the materials used are chosen for their mechanical and melting compatibility for a given particle property and size. The core particlesΓÇÖ size is determined by controlling tapering speed during the drawing process. As the combination of materials cools, the material of the particles solidifies within the outer layer of the fiber, which can be left as-is or dissolved to release the particles.
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