Abstract
Microspheres with a porous structure are promising cell carriers for tissue engineering. Here we explored monodisperse porous poly(caprolactone) (PCL) microspheres produced by a microfluidic system. The microfluidic device could generate homogeneous structured microspheres with excellent monodispersity. The microsphere size was tunable from 210 to 330µm by adjusting the sheath flow rate from 170 to 330µm. Camphene, used as a pore-generating material, was effective in creating open-channels, and the channel structure was significantly influenced by the solidification temperature and content of camphene. The size-tunable, monodisperse, and channeled-microspheres developed by using camphene and microfluidic device may be a potential platform in many areas, including biomolecule separation, drug delivery, and cell culture.
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