Fig. 4From: Tannin coordinated nanozyme composite-based hybrid hydrogel eye drops for prophylactic treatment of multidrug-resistant Pseudomonas aeruginosa keratitisIn vitro and in vivo biocompatibility of TCNH. Representative CLSM images of HCECs A and HCFs B by live/dead cell double staining after 24 h of cultivation. The quantitation of HCEC C and HCF D viability by LDH cytotoxicity assay kit after saline, H2O2, TCNH, and TCNH + H2O2 interventions. Representative SEM images of mouse corneas after saline and TCNH + H2O2 interventions EBack to article page