ArticleScientific reports2015
"Turn on" and label-free core-shell Ag@SiO2 nanoparticles-based metal-enhanced fluorescent (MEF) aptasensor for Hg(2+).
Article in Scientific reports, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 67 citations in OpenAlex.
- "Turn-on" and pinhole-free ultrathin core-shell Au@SiONanoscale advances · 2024Article
- Plasmonic Fluorescence Enhancement in Diagnostics for Clinical Tests at Point-of-Care: A Review of Recent Technologies.Advanced materials (Deerfield Beach, Fla.) · 2023Review
- Metal-Enhanced HgACS omega · 2022Article
- Metal-enhanced fluorescence of dyes with quadrupole surface plasmon resonance of silver nanoparticles.Nanoscale advances · 2022Article
- Recent Advances in Metallic Nanoparticle Assemblies for Surface-Enhanced Spectroscopy.International journal of molecular sciences · 2021Review
- Functional Nucleic Acid Nanomaterials: Development, Properties, and Applications.Angewandte Chemie (International ed. in English) · 2021Review
- A dual colorimetric probe for rapid environmental monitoring of HgRSC advances · 2021Article
- Recent Developments in Plasmonic Nanostructures for Metal Enhanced Fluorescence-Based Biosensing.Nanomaterials (Basel, Switzerland) · 2020Review
- Surface modification of plasmonic noble metal-metal oxide core-shell nanoparticles.Nanoscale advances · 2019Review
- Emerging plasmonic nanostructures for controlling and enhancing photoluminescence.Chemical science · 2017Review
- Recent Studies on the Speciation and Determination of Mercury in Different Environmental Matrices Using Various Analytical Techniques.International journal of analytical chemistry · 2017Review
Corrections and comments
- Erratum issued
Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A turn on and label-free fluorescent apasensor for Hg(2+) with high sensitivity and selectivity has been demonstrated in this report. Firstly, core-shell Ag@SiO2 nanoparticles (NPs) were synthetized as a Metal-Enhanced Fluorescent (MEF) substrate, T-rich DNA aptamers were immobilized on the surface of Ag@SiO2 NPs and thiazole orange (TO) was selected as fluorescent reporter. After Hg(2+) was added to the aptamer-Ag@SiO2 NPs and TO mixture buffer solution, the aptamer strand can bind Hg(2+) to form T-Hg(2+)-T complex with a hairpin structure which TO can insert into. When clamped by the nucleic acid bases, the fluorescence quanta yield of TO will be increased under laser excitation and emitted a fluorescence emission. Furthermore, the fluorescence emission can be amplified largely by the MEF effect of the Ag@SiO2 NPs. The whole experiment can be finished within 30 min and the limit of detection is 0.33 nM even with interference by high concentrations of other metal ions. Finally, the sensor was applied for detecting Hg(2+) in different real water samples with satisfying recoveries over 94%.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.