Convenient grafting through approach for the preparation of stealth polymeric blood pool magnetic resonance imaging contrast agents
作者:Mathurin Grogna、Rudi Cloots、André Luxen、Christine Jérôme、Catherine Passirani、Nolwenn Lautram、Jean-F. Desreux、Christophe Detrembleur
DOI:10.1002/pola.24805
日期:2011.9.1
New hydrosoluble magnetic resonance imaging (MRI) macrocontrast agents are synthesized by reversible addition fragmentation chain transfer (RAFT) copolymerization of poly(ethylene oxide) methyl ether acrylate (PEOMA) with an acrylamide bearing a ligand for gadolinium, followed by the complexation of Gd3+. This convenient and simple grafting through approach leads to macrocontrast agents with a high relaxivity
通过将聚环氧乙烷甲基醚丙烯酸酯(PEOMA)与带有g配体的丙烯酰胺进行可逆加成断裂链转移(RAFT)共聚,然后使Gd 3络合,从而合成了新型水溶性磁共振成像(MRI)宏观造影剂。+。这种便捷,简单的接枝方法可以使宏观造影剂在高频下具有高弛豫度,这是由于Gd 3+的受限翻滚而产生的。由于其与聚合物主链的连接而形成的复合物。重要的是,溶血CH50试验也证明了极低的蛋白质吸附。这是聚(环氧乙烷)(PEO)刷子的结果,该刷子可有效隐藏hide复合物,并使它隐匿于免疫系统的蛋白质中。因此,对于这些宏观对比剂,期望改善的对比度和长的血液循环特性。©2011 Wiley Periodicals,Inc. J Polym Sci A部分:Polym Chem,2011年