| 초록 |
Photoactivated nano- and micromotors that use light as their primary power source are promising issue in the field of motors. To date, IR and UV light have been used in most cases. In this study, we synthesized visible-light-driven TiO2 Janus micromotors (JMs) hybridized with conjugated polyelectrolyte and glucose oxidase (GOx) for photocatalytic activity and dynamic motion. The JMs were prepared by the wax-in-water Pickering emulsion method. The GOx, that can decompose glucose and produce hydrogen peroxide (H2O2), was immobilized in the TiO2 hemisphere. In the other hemisphere, water-soluble conjugated polymer (WSP), photoactive substances, having ability to absorb visible light was immobilized. The WSP can decompose H2O2 produced by the breakdown of glucose under visible light. As a result, JMs can move with faster speed under visible light with a diffusiophoretic mechanism by synergistic decomposition of glucose and H2O2. |
