化学
荧光
诺氟沙星
色氨酸
转身(生物化学)
红移
光化学
环丙沙星
生物化学
光学
抗生素
物理
氨基酸
量子力学
银河系
作者
Zhongwei Zhao,Fang-Hua Zhao,Zhong-Lin Li,Yushuo Li,Rui Feng,Jinmao You,Yuan‐Chun He
标识
DOI:10.1016/j.molstruc.2024.137821
摘要
Two three-dimensional (3D) coordination polymers (CPs), namely {[M(seb)(bbimb)]·3H2O}n (M = Zn for 1; Co for 2), were obtained via hydrothermal method using sebacic acid (H2seb) mixed with 1,4-bis(benzoimidazol-1-yl)butane (bbimb). The structures of 1 and 2 both display as 3D frameworks with a 5-fold interpenetrating dia topology. CPs 1 and 2 both exhibit excellent luminescent properties and good water stability. Fluorescence sensing experiments demonstrate that 1 and 2 both can selectively detect tryptophan (Trp) and norfloxacin (Nor) in aqueous solution through turn-on and red-shift effect with remarkable anti-interference ability and low detection limits. The limits of detection (LOD) toward Trp and Nor are 0.07 μM, 0.08 μM for 1 and 0.41 μM, 0.11 μM for 2. In addition, theoretical calculations and different detection methods were utilized to thoroughly investigate the potential sensing mechanisms for Trp and Nor. Importantly, 1 and 2 represent two rare examples for sensing both Trp and Nor via turn-on and red-shift effects. The fluoresence test films of 1 and 2 were prepared which can detect Trp and Nor quickly with naked eye.
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