| 초록 |
In recent years, 3D printing of hydrogels is extensively studied due to the its potential applications on artificial human organ, soft robotics, etc. Pluronic, a triblock copolymers comprised of a central hydrophobic poly(propylene oxide) (PPO) and hydrophilic poly(ethylene oxide) (PEO) on its sides, has been widely used for 3D printed hydrogels, because the amphiphilic nature of pluronic induces viscosity increase in elevated temperature, which stops the ink from flowing upon its deposition on a substrate. In this study, we modified pluronic F127 ((PEO)99-(PPO)65-(PEO)99) with methacrylate ends into pluronic F-dimethacrylate (FDMA) and photopolymerized the printed gels to maintain its structure after immersion in water. With this system, we have successfully printed the hydrogels in various structure, such as box mesh and human organs. By incorporation of other monomers, this system can be further studied to enhance the mechanical strength or incorporation of advanced functionalities. |
