A fluorescent tracer for targeting tumors, comprises: at least one first fluorophore fluorescing in a range of wavelengths of between 700 and 1000 nm, a targeting assembly comprising at least two identical targeting molecules, and a cyclic oligopeptide: configured so as to define a mean plane defining a first upper face and a second lower face, comprising at least one first lysine amino acid residue on the second lower face, the targeting molecules being fixed to the first upper face of the mean plane, the fluorophore being fixed to the second lower face of the mean plane via a spacer arm connecting a carbon of the sequence of the at least three double bonds and the lysine amino acid residue of the oligopeptide.
一种用于靶向肿瘤的荧光示踪剂,包括:至少一种在700至1000纳米波长范围内发光的第一荧光团,一个包含至少两个相同靶向分子的靶向组件,以及一个环状寡肽:被配置为定义一个平均平面,其中包括第一上表面和第二下表面,第二下表面上包括至少一个第一赖
氨酸
氨基酸残基,靶向分子被固定在平均平面的第一上表面上,荧光团通过连接至少三个双键序列的碳和寡肽的赖
氨酸
氨基酸残基之间的间隔臂被固定在平均平面的第二下表面上。