Silk fibroin and silk sericin composite hydrogel encapsulated exosomes promote wound healing. (March 2020) - Han, Chaoshan; Zhang, Yu; Wang, Yanli; Zhang, Yuqing; Yan, Bing; Xie, Wenping; Liu, Feng; Zhu, Bao; Wu, Chaofan; Song, Yao-Hua; Li, Yangxin