Yu Sun1,?, Shunqi Hu2,?, Lijuan Wang1,?, Fubang Liang2, Zeyi Zhou3, Yuyuan Zhang4, Yanjun Pan2, Jian Shen1, Meng Yin2,*, Jiang Yuan1,*. Bilayer vascular grafts separately loaded with sodium copper chlorophyllin and keratin-based hydrogen sulfide donor with pro-endothelialization, anti-thrombogenicity, anti-inflammation, and anti-calcification properties. Bioactive Materials 57 (2026) 247–266