申请人:EASTMAN KODAK COMPANY
(a New Jersey corporation)
公开号:EP0288256A2
公开(公告)日:1988-10-26
There are described stable fluorescent labels comprising a complex of Eu⁺³ and a chelating agent comprising a nucleus which is a triplet sensitizer having a triplet energy greater than that of Eu⁺³ and at least two heteroatom-containing groups which form coordinate complexes with Eu⁺³ and a third heteroatom-containing group or heteroatom in or appended to the triplet sensitizer which chelating agents are polypyridine or phenanthroline compounds. Labeled physio- logically active materials useful in specific binding assays such as labeled antigens, haptens, antibodies, hormones and the like comprising the stable fluores-cent labels having physiologically active materials adsorbed or bonded thereto are also described.
所述的稳定荧光标签由 Eu⁺³和螯合剂复合物组成,螯合剂包括一个核,该核是三重能敏化剂,其三重能大于 Eu⁺³的三重能,以及至少两个含杂原子的基团,这些基团与 Eu⁺³形成配位复合物,以及三重能敏化剂中或附加在三重能敏化剂上的第三个含杂原子的基团或杂原子,螯合剂是聚吡啶或菲罗啉化合物。此外,还描述了在特定结合试验中有用的标记生理活性材料,如标记抗原、抗原、抗体、激素等,这些材料包括吸附或结合有生理活性材料的稳定荧光标记。