Functionalized multilayer hydrogels loaded with HDAC4-modified superficial and middle-deep zone chondrocytes for enabling precise zonal repair of osteochondral defects - Li Guo; Fuyang Cao; Jihao Wen; Chengyang Lu; Li Wang; Yongsheng Ma; Gaige Wu; Xiaochun Wei; Pengcui Li; Zhi Chen (Chemical Engineering Journal, 2026)