Synthesis of an Amphiphilic Bis-Aqua Gd(OBETA) Complex for the Preparation of High-Relaxivity Supramolecular Magnetic Resonance Imaging Probes
作者:Roberto Negri、Fabio Carniato、Mauro Botta、Giovanni B. Giovenzana、Lorenzo Tei
DOI:10.1002/cplu.201500366
日期:2016.2
relaxometric, thermodynamic and kinetic properties of the bis-hydrated Gd(OBETA) (OBETA=2,2'-oxybis(ethylamine)-N,N,N',N'-tetraacetic acid) complex, a novel derivative tailored with an n-hexadecyl chain was synthesised. The amphiphilic gadolinium complex was designed and prepared with the aim of obtaining high relaxivity supramolecular aggregates by self-assembly in micelles and liposomes. Thus, lipidic
双水合Gd(OBETA)(OBETA = 2,2'-氧双(乙胺)-N,N,N',N'-N'-四乙酸)络合物的有利弛豫,热力学和动力学性质的提示合成具有正十六烷基链的剪裁。设计和制备两亲性complex络合物,其目的是通过在胶束和脂质体中的自组装获得高弛豫性的超分子聚集体。因此,制备了脂质纳米颗粒,并通过动态光散射和1 H NMR弛豫法对其进行了表征。在脂质体聚集体中记录了高达48.3 mm-1 s-1(20 MHz和298 K)的弛豫值。根据超分子加合物的亲和力和弛豫特性评估了与人血清白蛋白(HSA)的结合,产生了极高的弛豫值(71。