In recent years, fluorescent probes for the detection of environmentally and biologically important metal cations have received extensive attention for designing and development of fluorescent chemosensors. Herein, we report the photophysical results of 2-(2-fluorobenzoyl)-N-(2-methoxyphenyl) hydrazinecarbothioamide (4) functionalized as Ni (II) sensor in micromolar concentration level. Through fluorescence titration at 488 nm, we were confirmed that ligand 4 showed the remarkable emission by complexation between 4 and Ni (II) while it appeared no emission in case of the competitive ions (Cr3+, Fe2+, Co2+, Ba2+, Cu2+, Ca2+, Na+, K+, Cu+, Cs+). Furthermore, ligand 4 exhibited no toxicity with precise cell permeability toward normal living cells using L929 cell lines in bio imaging experiment investigated through confocal fluorescence microscope. The non-toxic behavior of ligand 4 (assessed by MTT assay) and its ability to track the Ni2+ in living cells suggest its possibility to use in biological system as nickel sensor.
近年来,用于检测环境和
生物重要
金属阳离子的荧光探针在荧光
化学传感器的设计和开发方面受到广泛关注。在此,我们报告了 2-(2-
氟苯甲酰基)-N-(2-
甲氧基苯基)
肼硫代甲酰胺(4)在微摩尔浓度
水平下作为 Ni (II) 传感器的光物理结果。通过在 488 nm 波长下进行荧光滴定,我们证实
配体 4 与 Ni (II) 的络合显示出显著的发射,而在竞争离子(Cr3+、Fe2+、Co2+、Ba2+、Cu2+、Ca2+、Na+、K+、Cu+、Cs+)情况下则没有发射。此外,在通过共聚焦荧光显微镜进行的
生物成像实验中,
配体 4 对使用 L929
细胞系的正常活细胞无毒性,且具有精确的细胞渗透性。
配体 4 的无毒性(通过 M
TT 试验评估)及其在活细胞中追踪 Ni2+ 的能力表明,它有可能在
生物系统中用作
镍传感器。