title: A novel functional imidazole fluorescent ionic liquid: simple and efficient fluorescent probes for superoxide anion radicals.
abstract: Novel imidazole fluorescent ionic liquids with anthracene groups (ImS-FILA) were synthesized for the first time to act as fluorescent probes. They were developed for the determination of superoxide anion radicals (O2 (•-)) in an aqueous system. O2 (•-) was produced by pyrogallol autoxidation. The fluorescence of ImS-FILA was quenched by superoxide anion radicals. The π-bond structure of the fluorescent molecules was oxidized and damaged. This method is very simple and sensitive. The linear range of sensitivity was 1-70 μM ImS-FILA, and the detection limit for reactive oxygen species was 0.1 μM. This method was used to detect superoxide radicals in papaya and garlic, with satisfactory results. Further work is needed to demonstrate the utility of this method in detecting reactive oxygen species in a biological aqueous system.
authors.affiliation: College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing, 314001, China.
authors.forename: Haiqing
authors.initials: H
authors.lastname: Liu
authors.forename: Lina
authors.initials: L
authors.lastname: Zhang
authors.forename: Jiangmin
authors.initials: J
authors.lastname: Chen
authors.forename: Yunyun
authors.initials: Y
authors.lastname: Zhai
authors.forename: Yanbo
authors.initials: Y
authors.lastname: Zeng
authors.forename: Lei
authors.initials: L
authors.lastname: Li
mesh_terms: D000838:Anions / Q000737:chemistry; D029441:Carica / Q000737:chemistry*; D005453:Fluorescence; D005737:Garlic / Q000737:chemistry*; D007093:Imidazoles / Q000737:chemistry*; D052578:Ionic Liquids / Q000737:chemistry; D013050:Spectrometry, Fluorescence / Q000379:methods*; D013481:Superoxides / Q000737:chemistry*
chemical_list: D000838:Anions; D007093:Imidazoles; D052578:Ionic Liquids; D013481:Superoxides; C029899:imidazole