Volumetric Transition-Induced Holographic Signal Changes in Responsive Microgel Structures under Environmental Perturbations
발표자
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초록
내용
In optical systems, the structural color is an appealing alternative to chromophores and fluorophores, displaying resilient and vivid coloration independent of a lifetime. This study aimed to develop environment-responsive optical systems based on polymeric structural colors via dithering mask lithography. The novelty in our approach systems is from incorporating hygroscopic or Lower Critical Solution Temperature (LCST) materials into the polymer matrix, allowing for volumetric changes in response to environmental humidity and temperature variation. Interestingly, we demonstrate that these polymeric microstructures could exhibit structural color changes and reveal concealed three-dimensional holographic patterns under human breath and temperature variation. As a proof of concept, we also propose a scalable encryption system, and these strategies present promising avenues for application in anti-counterfeiting and product packaging.