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Pyrene-functionalized ruthenium nanoparticles as effective chemosensors for nitroaromatic derivatives

Pyrene-functionalized Ru nanoparticles were synthesized by olefin metathesis reactions of carbene-stabilized Ru nanoparticles with 1-vinylpyrene and 1-allylpyrene (the resulting particles were denoted as Ru=VPy and Ru=APy, respectively) and examined as sensitive chemosensors for the detection of nit... Full description

Journal Title: Analytical chemistry 15 January 2010, Vol.82(2), pp.461-5
Main Author: Chen, Wei
Other Authors: Zuckerman, Nathaniel B , Konopelski, Joseph P , Chen, Shaowei
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: E-ISSN: 1520-6882 ; PMID: 20000846 Version:1 ; DOI: 10.1021/ac902394s
Link: http://pubmed.gov/20000846
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recordid: medline20000846
title: Pyrene-functionalized ruthenium nanoparticles as effective chemosensors for nitroaromatic derivatives
format: Article
creator:
  • Chen, Wei
  • Zuckerman, Nathaniel B
  • Konopelski, Joseph P
  • Chen, Shaowei
subjects:
  • Ruthenium -- Chemical Properties
  • Ruthenium -- Atomic Properties
  • Nanoparticles -- Chemical Properties
  • Nanoparticles -- Composition
  • Hydrocarbons -- Chemical Properties
  • Hydrocarbons -- Atomic Properties
  • Hydrocarbons -- Composition
  • Chemical Detectors -- Usage
  • Chemical Detectors -- Chemical Properties
  • Chemical Detectors -- Composition
  • Dinitrotoluene -- Chemical Properties
  • Tnt (Trinitrotoluene) -- Chemical Properties
ispartof: Analytical chemistry, 15 January 2010, Vol.82(2), pp.461-5
description: Pyrene-functionalized Ru nanoparticles were synthesized by olefin metathesis reactions of carbene-stabilized Ru nanoparticles with 1-vinylpyrene and 1-allylpyrene (the resulting particles were denoted as Ru=VPy and Ru=APy, respectively) and examined as sensitive chemosensors for the detection of nitroaromatic compounds, such as 2,4,6-trinitrotoluene (TNT), 2,4-dinitrotoluene (2,4-DNT), 2,6-dinitrotoluene (2,6-DNT), 1-chloro-nitrobenzene (CNB), and nitrobenzene (NB), by their effective quenching of the nanoparticle fluorescence. It was found that the detection sensitivity increased with increasing nitration of the molecules. Additionally, in comparison to monomeric pyrene derivatives, both Ru=VPy and Ru=APy nanoparticles exhibited markedly enhanced performance in the detection of nitroaromatic explosives, most probably as a result of the enhanced collision frequency between the fluorophores and the quencher molecules. Furthermore, Ru=VPy nanoparticles displayed much higher sensitivity (down to the nanomolar regime for TNT) than Ru=APy in the detection of these nitroaromatic explosives, which was ascribed to the extended intraparticle conjugation that provided efficient pathways for energy/electron transfer and consequently amplified the analyte binding events.
language: eng
source:
identifier: E-ISSN: 1520-6882 ; PMID: 20000846 Version:1 ; DOI: 10.1021/ac902394s
fulltext: no_fulltext
issn:
  • 15206882
  • 1520-6882
url: Link


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descriptionPyrene-functionalized Ru nanoparticles were synthesized by olefin metathesis reactions of carbene-stabilized Ru nanoparticles with 1-vinylpyrene and 1-allylpyrene (the resulting particles were denoted as Ru=VPy and Ru=APy, respectively) and examined as sensitive chemosensors for the detection of nitroaromatic compounds, such as 2,4,6-trinitrotoluene (TNT), 2,4-dinitrotoluene (2,4-DNT), 2,6-dinitrotoluene (2,6-DNT), 1-chloro-nitrobenzene (CNB), and nitrobenzene (NB), by their effective quenching of the nanoparticle fluorescence. It was found that the detection sensitivity increased with increasing nitration of the molecules. Additionally, in comparison to monomeric pyrene derivatives, both Ru=VPy and Ru=APy nanoparticles exhibited markedly enhanced performance in the detection of nitroaromatic explosives, most probably as a result of the enhanced collision frequency between the fluorophores and the quencher molecules. Furthermore, Ru=VPy nanoparticles displayed much higher sensitivity (down to the nanomolar regime for TNT) than Ru=APy in the detection of these nitroaromatic explosives, which was ascribed to the extended intraparticle conjugation that provided efficient pathways for energy/electron transfer and consequently amplified the analyte binding events.
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subjectRuthenium -- Chemical Properties ; Ruthenium -- Atomic Properties ; Nanoparticles -- Chemical Properties ; Nanoparticles -- Composition ; Hydrocarbons -- Chemical Properties ; Hydrocarbons -- Atomic Properties ; Hydrocarbons -- Composition ; Chemical Detectors -- Usage ; Chemical Detectors -- Chemical Properties ; Chemical Detectors -- Composition ; Dinitrotoluene -- Chemical Properties ; Tnt (Trinitrotoluene) -- Chemical Properties;
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abstractPyrene-functionalized Ru nanoparticles were synthesized by olefin metathesis reactions of carbene-stabilized Ru nanoparticles with 1-vinylpyrene and 1-allylpyrene (the resulting particles were denoted as Ru=VPy and Ru=APy, respectively) and examined as sensitive chemosensors for the detection of nitroaromatic compounds, such as 2,4,6-trinitrotoluene (TNT), 2,4-dinitrotoluene (2,4-DNT), 2,6-dinitrotoluene (2,6-DNT), 1-chloro-nitrobenzene (CNB), and nitrobenzene (NB), by their effective quenching of the nanoparticle fluorescence. It was found that the detection sensitivity increased with increasing nitration of the molecules. Additionally, in comparison to monomeric pyrene derivatives, both Ru=VPy and Ru=APy nanoparticles exhibited markedly enhanced performance in the detection of nitroaromatic explosives, most probably as a result of the enhanced collision frequency between the fluorophores and the quencher molecules. Furthermore, Ru=VPy nanoparticles displayed much higher sensitivity (down to the nanomolar regime for TNT) than Ru=APy in the detection of these nitroaromatic explosives, which was ascribed to the extended intraparticle conjugation that provided efficient pathways for energy/electron transfer and consequently amplified the analyte binding events.
doi10.1021/ac902394s
pmid20000846
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date2010-01-15