Nature CommunicationsLuminescence meets physical unclonability in fracture engineered porous polymer skeletons for anticounterfeitingShengwei FengLipeng QinLei GuoXinjian XieXiongwei LuoHongjiao LiYijun ZhangTao HeWenqian Feng2026-07-27Full textDOI https://doi.org/10.1038/s41467-026-75983-w