Fig. 2
From: Firefly-mimicking intensive and long-lasting chemiluminescence hydrogels
Characterization of Co2+/CS hydrogels and ABEI/Co2+/CS hydrogels. a SEM images of freeze-dried Co2+/CS hydrogels with 10-folds dilution. Scale bar is 10 µm. b Frequency dependence of dynamic storage modulus (G') and loss modulus (G") of ABEI/Co2+/CS hydrogels with 1 % strain at 20 °C. Inset in Fig. 2b: optical image of ABEI/Co2+/CS hydrogels
