| 초록 |
There have been recent reports on photonic crystal (PC) hydrogel sensors, fabricated using an artificial opal templating method, that rely on reversible changes in the reflective color in response to the binding of the analyte to the receptor tagged to the hydrogel. Two essential features of a PC sensor are the existence of external stimuli to induce a solvent influx and subsequent volume changes of the hydrogel, and periodic variations of refractive indices within the opal-templated hydrogel at the submicron length scale exhibiting various reflective colors with specific stimuli. Since the reflective color originates from the periodic structure of the hydrogel, it is often called the structural color. In this presentation, we present recent progress in inverse opal photonic crystal hydrogel sensors and actuators exhibiting fast response. |
