Chemosensing of Guanosine Triphosphate Based on a Fluorescent Dinuclear Zn(II)-Dipicolylamine Complex in Water
作者:Iván J. Bazany-Rodríguez、María K. Salomón-Flores、Joanatan M. Bautista-Renedo、Nelly González-Rivas、Alejandro Dorazco-González
DOI:10.1021/acs.inorgchem.0c00777
日期:2020.6.1
Guanosine triphosphate (GTP) is a key biomarker of multiple cellular processes and human diseases. The new fluorescent dinuclear complex [Zn2(L)(S)][OTf]4, 1 (asymmetric ligand, L = 5,8-Bis[bis(2-pyridylmethyl)amino] methyl}quinoline, S = solvent, and OTf = triflate anion) was synthesized and studied in-depth as a chemosensor for nucleoside polyphosphates and inorganic anions in pure water. Additions
三磷酸鸟苷(GTP)是多种细胞过程和人类疾病的关键生物标志物。新的荧光双核配合物[锌2(L)(S)] [光学传递函数] 4,1(不对称配位体,L = 5,8-双[双(2-吡啶基甲基)氨基]甲基}喹啉,S =溶剂, (OTf =三氟甲磺酸根阴离子)的合成和深入研究,作为纯水中核苷多磷酸盐和无机阴离子的化学传感器。添加在中性pH下的三磷酸核苷的,二磷酸鸟苷,鸟苷酸,和焦磷酸盐(PPI)至1骤冷其蓝色发光(λ EM= 410 nm),对GTP的选择性超过其他阴离子,包括三磷酸腺苷(ATP),三磷酸尿苷(UTP)和三磷酸胞苷(CTP)。在血浆和尿液中存在共存的物种时,观察到通过添加GTP产生的有效淬灭反应,检测限为9.2μmolL –1。GTP还显示了在亚微摩尔水平上与受体1的紧密结合。在多种光谱学工具(1 H,31 P NMR,UV-vis和荧光)和DFT计算的基础上,通过三点识别(涉及同时协调N