1. State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, 30 Puzhu South Road, Nanjing 211816, P. R. China
2. Electric Power Branch, Huaibei Mining Co., Ltd, Huaibei 235000, P. R. China
3. Department of Dermatology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, P. R. China
4. Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510000, P. R. China