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* Corresponding authors

a State Key Laboratory of Functions and Applications of Medicinal Plants, Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Provincial Key Laboratory of Pharmaceutics, School of Pharmacy, Guizhou Medical University, Guiyang 550004, China E-mail: [email protected], [email protected]

b Key Laboratory of Macromolecular Science of Shaanxi Province, Key laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Chang’an Campus: No. 620, West Chang’an Avenue, Chang’an, Xi’an, China E-mail: [email protected]