Molecular binding behaviors and thermodynamics of ferrocenyl dimethylaminium derivatives by anionic pillar[5]arene
作者:Cui-Fang Zhang、Sheng-Hua Li、Cai-Cai Zhang、Yu Liu
DOI:10.1039/c5ob01884f
日期:——
A novel anionic water-soluble pillar[5]arene (4C-WP5A) was synthesized via a convenient synthetic strategy of the direct cyclization of a functionalized hydroquinone monomer.
In this work, a turn on fluorescent sensor, based on Hg2 + coordination conjugatedpolymer, was developed to detect cysteine-containing compounds. The fluorescence of conjugatedpolymer (poly(2,5-bis (sodium 4-oxybutyrate) -1,4 - phenylethynylene-alt-1,4-phenyleneethynylene; PPE-OBS) would be quenched by Hg2 + because of the coordination-induced aggregation and electron transfers of PPE-OBS toward
The development of unimolecular conjugated polymeric micelles for the highly selective detection and recovery of gold from electronic waste
作者:Jilin Liu、Ting Yang、Zhiru Hu、Guodong Feng
DOI:10.1039/c9nj02077b
日期:——
Gold is a widely used precious metal. In this paper, a novel conjugatedpolymer is designed and synthesized that can be used to detect and separate gold from electronic waste with satisfactory sensitivity and selectivity. Therefore, this strategy is of great significance for the recycling of gold resources.
A novel fluorescent graft conjugated polymer (poly (2, 5-bis (Polyethylene glycol oxybutyrate)-1, 4-phenylethynylene- alt-1, 4-phenyleneethynylene, PPE-OB-PEG) has been designed and synthesized for the determination of aristolochic acid (AA). The detection conditions and detection characters of PPE-OB-PEG were systematically explored in this work. The fluorescence intensity of PPE-OB-PEG changes with the different concentration of AA. PPE-OB-PEG has a good linear range towards AA from 1.00 x 10(-7) to 8.00 x 10(-5) mol L-1 and the limit of detection (LOD) is 3.00 x 10(-8) mol L-1 (S/N=3). PPE-OB-PEG have been applied to detect AA in traditional Chinese medicine samples and the results are satisfactory. The experimental results show that PPE-OB-PEG can be used as a fluorescence probe for rapid and sensitive detection of AA. (C) 2019 Elsevier B.V. All rights reserved.