会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明申请
    • SHAPE-CONTROLLED MAGNETIC NANOPARTICLES AS T1 CONTRAST AGENTS FOR MAGNETIC RESONANCE IMAGING
    • 形状控制磁性纳米粒子作为T1对比剂用于磁共振成像
    • WO2012050810A3
    • 2012-07-19
    • PCT/US2011053268
    • 2011-09-26
    • UNIV ALABAMABAO YUPING Y
    • BAO YUPING Y
    • A61K49/18A61K9/16A61K47/48A61K49/06
    • A61K49/1839A61K49/1833A61K49/1854A61K49/1857Y10T428/2982
    • Methods are provided for the generation of nanostructures suitable for use in magnetic resonance imaging where the nanostructures have at least one dimension of about 2 nm or less. In particular, the methods comprise the selective use of incubation temperatures that result in the controlled removal of ligands from metallic cores to which they are attached, allowing the metallic cores or the precursor moieties to unite to form nanostructures of defined and predictable shapes, but having at least one dimension significantly less that at least one other dimension. Accordingly, the nanostructures of the disclosure may be ultrathin sheets, rods, whiskers and the like, or even structures that are thin and porous resembling rice grains. The temperatures useful in the methods of the disclosure are less than 300 °C and allow for progressive elevation of the incubation temperature. The methods are especially advantageous for synthesizing nanoparticles that may be administered to an animal or human subject for imaging with magnetic resonance. Accordingly, the nanostructures of the disclosure comprise a metallic core, most typically, but not necessarily limited to, a ferrite moiety that can be a ferrous or ferric ion alone or in combination with other metallic elements. However, the methods of the disclosure are also suitable for generating nanostructures with non-ferrous cores such as magnesium or manganese cores.
    • 提供了用于产生适用于磁共振成像的纳米结构的方法,其中纳米结构具有约2nm或更小的至少一个维度。 特别地,所述方法包括选择性地使用孵育温度,其导致从其连接的金属核心控制去除配体,允许金属核心或前体部分团聚以形成具有限定和可预测形状的纳米结构,但具有 至少一个维度显着小于至少一个其他维度。 因此,本公开的纳米结构可以是超薄片,棒,晶须等,或者甚至是类似于米粒的薄且多孔的结构。 在本公开的方法中有用的温度低于300℃,并允许温育温度逐渐升高。 该方法对于合成可以施用于动物或人受试者用于用磁共振成像的纳米颗粒是特别有利的。 因此,本公开的纳米结构包括金属芯,最典型地但不一定限于铁氧体部分,其可以是单独的或与其它金属元素组合的亚铁或三价铁离子。 然而,本公开的方法也适用于产生具有有色金属芯(例如镁或锰核)的纳米结构。