chondroitin sulfate; adult; animal experiment; animal model; animal tissue; cell migration; conference abstract; conformational transition; controlled study; cornea; cross linking; decellularization; endothelium; female; goat; graft rejection; histology; histopathology; human; immune response; immunogenicity; implantation; in vitro study; inflammation; keratitis; Leporidae; male; microbial keratitis; nonhuman; regeneration; shelf life; stroma; thickness