申请人:SPAGO IMAGING AB
公开号:US09040637B2
公开(公告)日:2015-05-26
Disclosed herein are nanostructures comprising a polymeric framework comprising at least five geminal bisphosphonate groups, wherein the geminal bisphosphonate groups independently of each other are incorporated as —R3R4C(P═O(OR1)(OR2))2, wherein R1 and R2 are independently selected from the group consisting of a negative charge, H, alkyl and aryl, and wherein at least one of R3 and R4 is a group connected to the polymeric framework with the proviso that when only one of R3 and R4 is such a connected group, the other of R3 and R4 is either a group being able to connect to the polymeric framework, or the residue of such a group, or selected from the group consisting of H, OH, OR5 and R5, wherein R5 is a lower alkyl. The polymeric framework may comprise manganese ions. Disclosed are also methods for producing such manganese containing nanostructures, compositions comprising such manganese containing nanostructures and use of such manganese containing nanostructures, i.a. as MRI contrasting agents.
本文公开了一种纳米结构,包括至少五个双膦酸酯基团的聚合物框架,其中双膦酸酯基团独立地被并入为—R3R4C(P═O(OR1)(OR2))2,其中R1和R2独立地选择自阴离子、氢、烷基和芳基的群体,而且至少有一个R3和R4是连接到聚合物框架的基团,但当R3和R4中仅有一个是这样的连接基团时,另一个R3和R4则是能够连接到聚合物框架的基团,或者是这样一个基团的残基,或者选择自H、OH、OR5和R5的群体,其中R5是低烷基。聚合物框架可以包括锰离子。还公开了制备这种含锰纳米结构的方法、包含这种含锰纳米结构的组合物以及使用这种含锰纳米结构的方法,其中包括作为MRI对比剂。