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Synthesis of Anisotropic Magnetic Polymeric Janus Particles by In Situ Separation of Magnetic Nanoparticles in a Microfluidic Device
Date
2023-11-01
Author
Saqib, Muhammad
Ercan, Batur
Erdem, E Yegan
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Magnetic Janus particles have been studied extensively for medical and biological applications owing to their controllable mobility in fluid media. In this work, we report a novel microfluidic device designed for the synthesis of magnetically anisotropic Janus particles made of poly-(ethylene glycol) diacrylate and embedded with magnetic iron oxide nanoparticles. Our method consists of a droplet generation step followed by magnetic separation using an external magnetic field and ultraviolet polymerization. The synthesized particles exhibit a monodisperse size distribution with a standard deviation of less than 3.5%, which is among the best size distributions obtained in the literature for magnetic Janus particles. The anisotropic magnetic property of the particles enable them to rotate about their own axes in the presence of an external magnetic field, introducing another degree of freedom to their motion. This microfluidic technique is simple, one-step, and versatile, offering control over the size distribution to synthesize magnetically anisotropic Janus particles.
URI
https://hdl.handle.net/11511/106565
Journal
LANGMUIR
DOI
https://doi.org/10.1021/acs.langmuir.3c01862
Collections
Department of Metallurgical and Materials Engineering, Article
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BibTeX
M. Saqib, B. Ercan, and E. Y. Erdem, “Synthesis of Anisotropic Magnetic Polymeric Janus Particles by In Situ Separation of Magnetic Nanoparticles in a Microfluidic Device,”
LANGMUIR
, no. 48, pp. 17080–17087, 2023, Accessed: 00, 2023. [Online]. Available: https://hdl.handle.net/11511/106565.