Synthesis of Monodisperse Bicolored Janus Particles with Electrical Anisotropy Using a Microfluidic Co-Flow System


  • This work was partially supported by MEXT through Special Coordination Funds for Promoting Science and Technology.


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A planar microfluidic system produces monodisperse biphasic droplets that are subsequently polymerized to form bicolored Janus microspheres (see figure). Engineered spheres have a dipolar character and can be electrically actuated for application in a particle-based electronic paper display. A scale-up approach using multiple-channel integration on a chip is also described, which achieves high throughput for practical material production.