Steerable mass transport in a photoresponsive system for advanced anticounterfeiting

• DOI: 10.1016/j.isci.2024.108790
• Publication Date: 2024-01-06T03:06:07Z
• Authors: Yufan Ji; Bowen Yang; Feng Cai; Tianfu Song; Haifeng Yu
• Keywords: Mass transport

Numerous anticounterfeiting platforms using photoresponsive materials have been designed to improve information security, enabling applications in technology. However, fabricating sophisticated micro/nanostructures bidirectional mass transport achieve advanced remains challenging. Here, we propose one strategy steerable a system with the assistance of solvent vapor at room temperature. Upon optimizing host-guest ratio and width photoisomerized areas, wettability gradient is acquired just photo-patterning once, then realized due competition induced by surface energy material itself flow on film gradient. Taking advantage interaction between gradient, this polymer has successfully applied multi-mode anticounterfeiting. This work paves promising avenue toward high-level storage soft materials, demonstrating potential