Sigma-Aldrich 提供一系列基于钌络合物的活性染料,用于荧光偏振检测和荧光寿命成像。这些染料的设计独特,具有较长的荧光寿命。它们首先在荧光显微中心 Dr. Joseph Lakowicz 的实验室中合成。这些激光激发的金属配体络合物具有接近 500 纳秒的荧光寿命。 这些染料可用于在温和条件下标记生物分子上的胺。作为蛋白质标签,其优点在于良好的光稳定性和水溶性、染料之间无相互作用,并且斯托克斯位移较大。 另外,可以选通长寿命荧光团的荧光信号,从而消除短寿命荧光团发光,并且消除细胞和生物分子的自发荧光,从而进一步提高灵敏度。
We report the synthesis and spectral properties of a long-lifetime luminescent Ru complex containing a sulfhydryl-reactive maleimide group, [Ru (2,2'-bipyridine)2(1, 10-phenanthroline-5-maleimide)](PF6)2. [Ru(bpy)2(phen-mi)]2+ was covalently linked to human serum albumin, immunoglobulin G, and beta-galactosidase. The lifetimes for probe bound to proteins
Vibrio parahaemolyticus (VP), as a kind of harmful bacterium to human beings, its rapid and accurate detection is particularly important. Herein, we developed a simple and efficient dual-modal Faraday cage-type immunosensor for ultrasensitive detection of VP based on electrochemiluminescence (ECL)