1. Research Centre for Regenerative Medicine, Guangxi Engineering Center in Biomedical Material for Tissue and Organ Regeneration, Guangxi Medical University, Nanning, Guangxi 530021, PR China
2. State Key Laboratory of Silkworm Genome Biology, Chongqing Engineering and Technology, Research Center for Novel Silk Materials, Biological Science Research Center, Southwest University, Chongqing 400715, PR China