title: A Fluorescent Sensor Synthesized Using Silica Nanoparticles for Detecting Hg²⁺ in Aqueous Solution.
abstract: With the aim of detecting Hg²⁺ in aqueous solution, a new fluorescent nanosensor (RhB-APTES-SiNPs) for the determination of Hg²⁺ has been successfully developed. This senor was synthesized by immobilizing RhB-APTES on the surface of silica nanoparticles (SiNPs), which were prepared using the reverse microemulsion method. RhB-APTES-SiNPs can detect Hg²⁺ on-line, in real time and with the naked eye, thus providing "turn-on" fluorescence enhancement. The developed nanosensor exhibits highly sensitivity and selectivity over several cations in aqueous solution. Additionally, RhB-APTES-SiNPs exhibits an excellent ability to detect Hg²⁺ within a linear range from 1 to 6 µM, and its detection limit was calculated to be 0.5 ppb.
authors.forename: Wenqi
authors.initials: W
authors.lastname: Zhao
authors.forename: Xingliang
authors.initials: X
authors.lastname: Liu
authors.forename: Haitang
authors.initials: H
authors.lastname: Lv
authors.forename: Hua
authors.initials: H
authors.lastname: Fu
authors.forename: Ziping
authors.initials: Z
authors.lastname: Huang
authors.forename: Aixia
authors.initials: A
authors.lastname: Han
mesh_terms: D005453:Fluorescence; D008628:Mercury / Q000032:analysis*; D053758:Nanoparticles / Q000737:chemistry*; D012822:Silicon Dioxide / Q000737:chemistry*
chemical_list: D012822:Silicon Dioxide; D008628:Mercury