Novel luminescent hierarchical porous hydrogels with a three-dimensional interconnected network structure from feather keratin crosslinking reaction.

Six novel keratin-based fluorescent hierarchical porous hydrogels, pure keratin (FK), keratin-seaweed (FK-SP), keratin-chitosan (FK-CS), and keratin-rhodamine B (FK-Rh B) with three-dimensional (3D) interconnected network structures have been prepared via a one-pot crosslinking method. The green-red dual emissions of the FK-SP and FK-Rh B hydrogels were observed under a single-wavelength excitation. [ABSTRACT FROM AUTHOR]