Information Security with Smart Hydrogels: Photo‑Patterning and Multi‑Stimuli Responsive Structural Color (IMAGE)
Caption
- A light-induced crosslinking strategy enables multi-color patterning of anti-opal hydrogel with a minimum line width of 15 μm, significantly enhancing information capacity.
- Control film crosslinking degree via UV irradiation allows adjust swelling, mechanical and optical properties of various stimulus-responsive structural color films simultaneously.
- A "film formation first, then patterning" approach provides a new train of thought for dynamic information encryption, security and ink-free printing.
Credit
Xiaoyu Guo, Ying Li, Farzana Hanif, Linhai Zhu, Miao Kong, Shufen Zhang, Yuang Zhang, Bingtao Tang*.
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License
CC BY-NC-ND