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    • 18. 发明授权
    • Switching fluorescent nanoparticle probe and fluorescent particle imaging method using same
    • 开关荧光纳米粒子探针和荧光颗粒成像方法使用相同
    • US09370589B2
    • 2016-06-21
    • US13818392
    • 2011-08-08
    • Isao HaraEiichi OzekiHideo SajiShunsaku KimuraMasahiro OnoTakashi Temma
    • Isao HaraEiichi OzekiHideo SajiShunsaku KimuraMasahiro OnoTakashi Temma
    • A61K9/14A61K49/00
    • A61K49/0089A61K49/0032A61K49/0093Y10S977/773Y10S977/927
    • The present invention provides a novel fluorescent nanoparticle imaging probe having a switching function (a function to quench a fluorescent dye during nanoparticle preparation, and emit fluorescence during imaging). A switching fluorescent nanoparticle probe comprising: a molecular assembly composed of an amphiphilic block polymer having a hydrophilic block chain and a hydrophobic block chain; and a fluorescent dye encapsulated in the molecular assembly, wherein (a) the hydrophilic block chain comprises, as an essential hydrophilic structural unit, a unit selected from a sarcosine unit and an alkylene oxide unit, (b) the hydrophobic block chain comprises, as an essential hydrophobic structural unit, a unit selected from the group consisting of an amino acid unit and a hydroxylic acid unit, and (c) the fluorescent dye is a cyanine compound represented by the formula (I): and two or more molecules of the fluorescent dye are encapsulated in the single molecular assembly.
    • 本发明提供了具有开关功能(在纳米颗粒制备期间淬灭荧光染料并在成像期间发射荧光的功能)的新型荧光纳米颗粒成像探针。 一种开关荧光纳米颗粒探针,包括:由具有亲水嵌段链和疏水性嵌段链的两亲嵌段聚合物组成的分子组合; 以及包封在分子组合中的荧光染料,其中(a)所述亲水性嵌段链包含作为必需亲水性结构单元的选自肌氨酸单元和烯化氧单元的单元,(b)所述疏水性嵌段链包含: 必需的疏水结构单元,选自氨基酸单元和羟基酸单元的单元,和(c)荧光染料是由式(I)表示的花青化合物:和 荧光染料被封装在单分子组装中。