1. Department
of Chemistry and Key Laboratory of Biomedical Polymers of Ministry
of Education, Wuhan University, Wuhan 430072, China
2. Hubei Tiansi Technology Co., Ltd., Xiaogan 432000, China
3. Graduate
School of Bioresource and Bioenvironmental Sciences, Kyushu University, 6-10-1,
Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan