Front Cover: A biological extraction strategy is proposed for the preparation of bioactive keratins from wool wastes. The keratin products show excellent ability to promote cell growth and migration, and also conferred with significant antioxidant ability. They can self‐assemble into injectable hydrogels, showing potentials for promoting wound healing. This is reported by Chang Su, Jin‐Song Gong, Jin‐Peng Ye, Ji‐Meng He, Rui‐Yi Li, Min Jiang, Yan Geng, Yan Zhang, Jing‐Hua Chen, Zheng‐Hong Xu, Jin‐Song Shi in article 2000073.
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