Dynamic Colloidal Photonic Crystal Hydrogels with Self-Recovery and Injectability
(a) The assembled hybrid colloidal PC hydrogels with three combinatorial structure colors at 2D plane. Hydrogel sizes: .. (b) The assembled 3D curved colloidal PC hydrogel ring. . (c) The three dynamic colloidal PC hydrogels could be easily transferred into syringes. . (d) The injection of dynamic colloidal PC hydrogels for the construction of photonic letter patterns. Teflon molds: .. (e) The photos of photonic letter patterns shot from different angles (90° and 45°). .