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制备自组装天冬酖胺酶( Asparaginase, AAS)透明-酸-聚乙二醇(Hyaluronic acid-graft- poly(ethylene glycol), HA-g-PE9)/3 丙基环糊精( Hydroxypropyl-beta -cyclodextrin, HPCD) 纳米微球( self-assembly HA-g-PE9 / HPCD hollow nanospheres loaded with AAS, AHHPs),并对 AHHPs的体外活性及稳定性进行初步研究.制备并测定A