Deacetylated gellan gum

The PEG2000-DSPE (Corden, Liestal, Swiztherland), Solutol HS 15 (BASF, Ludwigshafen, Germany), Cur, C6, deacetylated gellan gum, and Tween 80 were purchased from Sigma-Aldrich (Saint Louis, MO., USA). Tris(hydroxymethyl) aminomethane (Tris)-HCl buffer (pH 6.8 and 7.0) and mannitol were purchased from Beijing Baiardi Biotechnology Co. Ltd. (Beijing, China). Pyrene and PBS (PH 7.4) were products of Shanghai McLean Biochemical Technology Co. Ltd. (Beijing, China) and Beijing Solarbio Science & Technology Co. Ltd. (Beijing, China), respectively. HCECs were purchased from FuDan IBS Cell Center (Shanghai, China). Dulbecco’s Modified Eagle Medium (DMEM), fetal calf serum (FBS), and penicillin-streptomycin solution were purchased from Corning (New York, NY., USA). Bovine insulin and epithelial growth factor (EGF) were products of Cyagen Biosciences (Santa Clara, CA., USA). FAS eye fixer was purchased from Servicebio technology Co. Ltd. (Wuhan, China). Other chemicals and reagents were of analytical grade. New Zealand albino rabbits weighing 2–2.5 kg, devoid of any signs of ocular inflammation or gross abnormalities, were purchased from Beijing Jinmuyang Laboratory Animal Breeding Co. Ltd. (Beijing, China) ([license no: SCXK (Beijing) 2015-0005].