Mechanically Gated Generation of a 3H‑Anthra[2,1‑b]pyran Photoswitch Enabling Multicolor Switching
Yan Sun, Wendy Granados Razo, Maxwell J. Robb · 2026
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Description
Yan Sun and co-authors present, in 2026, a colour-changing switch that force must unlock before light can flip it. Stress pulls the starting molecule apart and frees a yellow light switch built on an anthrapyran frame. Only then can ultraviolet light open a ring and turn the dye orange-red. Older designs gave just one colour change, from clear to coloured.
Three stages now mark what a plastic part has been through. Force alone leaves it yellow, and force plus light turns it orange-red. The authors say such parts could sense strain, print patterns in colour, or act as tiny logic gates. The work widens the kit for smart plastics.
Catalog record
| CREATOR | Yan Sun, Wendy Granados Razo, Maxwell J. Robb |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 15289 |
| LICENSE | https://creativecommons.org/licenses/by/4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |