초록 |
Stimuli-responsive hydrogels have attracted significant attention as smart material candidates because their ability to change their shape or volume in response to an environmental change such as temperature, pH, light and electric field. Recently, several researchers have focused on stimuli-responsive hydrogels that have bending properties by gradient nanostructuring. The bending behavior of hydrogel has many potential applications as bio molecule sensing tool in the sensing systems based on molecule imprinting. Herein, we present a novel biomacromolecule-responsive hydrogel actuator, which has mechanical bending behavior in the binding of ovalbumin (Ova) as target glycoprotein. The bilayer actuator is fabricated by UV-polymerization of pre-hydrogel solution on polyethylene terephthalate (PET) with standardized silicon mold. In this study, we prepared the bilayer actuators that have various aspect ratio and, investigated their mechanical bending behavior upon protein binding. |