A large stokes-shifted fluorescent dye synthesized as a new probe for the determination of protein
作者:Dayong Lin、Xuening Fei、Ran Li、Yingchun Gu、Yalin Tang、Jianguo Zhou、Baolian Zhang
DOI:10.1007/s10895-016-1851-y
日期:2016.7
in organic solvent. The photostability and thermostability of the new dye were also studied and the results suggested the stable was excellent. The interactions of the dye with bovine serum albumin (BSA) , Human serumal bumin (HSA) and calf thymus deoxyribonucleic acid (ctDNA) were studied by fluorescence and absorption spectroscopy. The binding constant for BSA, HSA and DNA were calculated to be 8
合成了一种新型的荧光染料1-(2-羟乙基)-4-((E)-2-(3-苯并噻唑-2-基-9-乙基咔唑-3基)乙烯基)溴化吡啶鎓,用于蛋白质及其测定结构的特征在于(1)1 H NMR。本文描述了新探针在不同溶剂中的光物理性质,该新型荧光分子染料在有机溶剂中表现出较大的斯托克斯位移和荧光量子产率。还研究了这种新型染料的光稳定性和热稳定性,结果表明该稳定性非常好。通过荧光和吸收光谱研究了染料与牛血清白蛋白(BSA),人血清白蛋白(HSA)和小牛胸腺脱氧核糖核酸(ctDNA)的相互作用。BSA,HSA和DNA的结合常数经计算分别为8.91 x 10(7),1.86 x 10(6)和2.9 x 10(4)。