title: Quinolino-triazole linked gold nanoparticles as sensitive 'turn-on' fluorescent Cd(2+) probes.
abstract: Quinoline derivatives were brought into the surface of gold nanoparticles (Au NPs) through click chemistry. The fluorescence was quenched by Au NPs because of electron transfer between Au NPs and quinoline. However, upon addition of Cd(2+) to the quinoline-triazole Au NP solution, it exhibited an effective switch-on fluorescence response, owing to the coordination between quinoline and Cd(2+) which can efficiently block the electron transfer. What's more, the fluorescent sensor can effectively detect Cd(2+) in aqueous solution with a detection limit of 1.0 × 10(-5) M.
authors.affiliation: Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, People’s Republic of China.
authors.forename: Yao
authors.initials: Y
authors.lastname: Yao
authors.forename: Zhongyue
authors.initials: Z
authors.lastname: Sun
authors.forename: Zhilong
authors.initials: Z
authors.lastname: Zou
authors.forename: Haibing
authors.initials: H
authors.lastname: Li
mesh_terms: D002104:Cadmium / Q000032:analysis*; D005453:Fluorescence; D005456:Fluorescent Dyes / Q000737:chemistry*; D006046:Gold / Q000737:chemistry*; D057230:Limit of Detection; D053758:Nanoparticles / Q000737:chemistry*; D011804:Quinolines / Q000737:chemistry*; D013050:Spectrometry, Fluorescence / Q000379:methods; D014230:Triazoles / Q000737:chemistry*
chemical_list: D005456:Fluorescent Dyes; D011804:Quinolines; D014230:Triazoles; D002104:Cadmium; D006046:Gold