Macroscopic Bending Behavior of Ovalbumin-Responsive Bilayer Actuator with Molecularly Imprinted Hydrogel and Polyethylene Terephthalate
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Ovalbumin (Ova), which contain oligosaccharide chain covalently attached to polypeptide play important roles in biological processes such as cellular interaction, molecular recognition, and immune reaction. It has been attracted significant attention as molecular weight marker and allergic reaction subject in the field of proteomics and immunology. In this regard, as a recognition strategy for Ova, numerous sensing systems based on molecularly imprinting have been presented such as electrochemical synthesis approach, magnetic microsphere and Ova-responsive hydrogels. Herein, we present a novel Ova-responsive bilayer actuator, which has macroscopic bending motion in response to binding of ovalbumin. The bilayer actuator is fabricated by UV-polymerization in presence of pre-hydrogel solution on polyethylene terephthalate (PET) with standardized silicon mold. In this study, mechanical bending behavior of bilayer actuators with various aspect ratio investigated upon protein binding.