| 초록 |
There is an increased interest on 3D printing of hydrogels in recent years, as it has a high potential in the development of various fields, such as soft robotics and tissue engineering. One of the most highly studied materials to realize 3D printing of hydrogels is poloxamer, a triblock copolymers comprised of poly(propylene oxide) (PPO) hydrophobic central block and poly(ethylene oxide) (PEO) hydrophilic side blocks. Poloxamer is a promising material because of its amphiphilic nature, allowing a temperature controllable viscosity, an important characteristic of a 3D printing ink to maintain its structure upon deposition without blocking the nozzle. In this study, we added methacrylate groups into poloxamer 407 to crosslink the 3D printed structure. In addition, we improved the mechanical property and added conductivity to the system by incorporation of ionic bond and conductive filler. This system is highly feasible and can be further developed into real-life applications. |
