申请人:University of Pittsburgh of the Commonwealth System of Higher Education
公开号:US05998594A1
公开(公告)日:1999-12-07
A chromogenic receptor comprises a self-assembled chromogenic compound having at least one intrinsic binding site. The chromogenic compound is characterized by the property of producing a reversible color change responsive to binding a target substrate to the receptor. The chromogenic compound has a transition metal ion and at least one ligand bound to the transition metal ion. The ligand is selected from the group consisting of substituted phenanthroline, substituted 2,2'-bipyridine and substituted 2,2':6',2"-terpyridine. The transition metal is selected from the group consisting of Cu(I), Cu(II), Ag(I), Ni(II), Fe(II), Fe(III), Ru(II), Co(III), and Os(II). Self-assembly can be effected in the presence of Cu(I) to form receptors for dicarboxylic acids, carbohydrate, amino acids, steroids and pyrophosphates. The receptors are characterized by the formation of a 2:1 complex of the target substrate with the receptor producing a visible color change from orange to red and a measurable change in its luminescence. Methods of using these receptors are also disclosed.
一种显色受体包括至少具有一个内在结合位点的自组装显色化合物。该显色化合物的特征在于具有产生可逆颜色变化的性质,响应于将目标底物与受体结合。显色化合物具有过渡金属离子和至少一个与过渡金属离子结合的配体。配体选自取代菲啰啉、取代2,2'-联吡啶和取代2,2':6',2"-三吡啶的群组。过渡金属选自Cu(I)、Cu(II)、Ag(I)、Ni(II)、Fe(II)、Fe(III)、Ru(II)、Co(III)和Os(II)的群组。在Cu(I)存在下,可以通过自组装形成双羧酸、碳水化合物、氨基酸、类固醇和焦磷酸盐的受体。该受体的特征在于目标底物与受体形成2:1复合物,产生从橙色到红色的可见颜色变化和其发光性能的可测量变化。本文还公开了使用这些受体的方法。