title: A bimodal multianalyte simple molecule chemosensor for Mg2+, Zn2+, and Co2+.
abstract: The well-known 8-aminoquinoline framework offers an ideal model for the development of fluorescence-enhanced chemosensors through simple and convenient syntheses. Herein, a novel and simple molecule chemosensor, 5-diethylamino-2-(quinolin-8-yliminomethyl)-phenol (HL), has been designed by combining an 8-aminoquinoline moiety and a 4-(diethylamino)salicylaldehyde in a single molecule to prove the selectivity and sensitivity for Mg(2+), Zn(2+), and Co(2+) in a dual-channel mode (fluorescence emission and UV/Vis). When binding Mg(2+), HL not only showed an obvious fluorescence enhancement but also enabled the Mg(2+) detection range over 1.68 ppb. Meanwhile, in mixed solvent media, HL displayed selectivity for Zn(2+) over other cations by the emission spectrum. It was worth noting that HL could be a colorimetric sensor for Co(2+) in a semi-aqueous solution by monitoring the absorption spectral behavior and be a colorimetric reagent for sensing and staining of Co(2+) in the cells. The results indicate that HL can be applied in multianalyte detection.
authors.affiliation: Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China. tangyu@lzu.edu.cn.
authors.forename: Yiran
authors.initials: Y
authors.lastname: Li
authors.forename: Jiang
authors.initials: J
authors.lastname: Wu
authors.forename: Xiaojie
authors.initials: X
authors.lastname: Jin
authors.forename: Jianwei
authors.initials: J
authors.lastname: Wang
authors.forename: Shuai
authors.initials: S
authors.lastname: Han
authors.forename: Wenyu
authors.initials: W
authors.lastname: Wu
authors.forename: Jun
authors.initials: J
authors.lastname: Xu
authors.forename: Weisheng
authors.initials: W
authors.lastname: Liu
authors.forename: Xiaojun
authors.initials: X
authors.lastname: Yao
authors.forename: Yu
authors.initials: Y
authors.lastname: Tang
mesh_terms: D003035:Cobalt / Q000737:chemistry*; D008274:Magnesium / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D013050:Spectrometry, Fluorescence; D021241:Spectrometry, Mass, Electrospray Ionization; D015032:Zinc / Q000737:chemistry*
chemical_list: D003035:Cobalt; D008274:Magnesium; D015032:Zinc