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A Fluorescent Sensor Synthesized Using Silica Nanoparticles for Detecting Hg2+ in Aqueous Solution

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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+ online, 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.
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Document Type: Research Article

Publication date: January 1, 2016

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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