[EN] FORMATION AND USES OF EUROPIUM<br/>[FR] PRODUCTION ET UTILISATIONS DE L'EUROPIUM
申请人:UNIV WAYNE STATE
公开号:WO2014164712A1
公开(公告)日:2014-10-09
An MRI contrast composition includes a liposome and a europium metal complex disposed within the liposome. The europium metal complex includes a europium metal ion and a multi-dentate ligand selected from the group consisting of cryptands and thiacryptands and one or more counter-ions that balances a charge of the europium metal ion and the multi-dentate ligand, the europium metal ion being switchable between a 2+ and 3+ oxidation state. The contrast composition advantageously provides an oxidation-responsive dual-mode contrast agent because it would enhance either T1-weighted images or CEST images depending on the oxidation state of Eu.
MRI对比剂组合物包括一个脂质体和位于脂质体内的铕金属配合物。铕金属配合物包括一个铕金属离子和从包括环戊醚和硫环戊醚的羟基配体中选择的多齿配体,以及一个或多个平衡铕金属离子和多齿配体电荷的对离子,铕金属离子可在+2和+3氧化态之间切换。该对比剂组合物具有氧化响应双模对比剂的优势,因为它会根据Eu的氧化态增强T1加权图像或CEST图像。