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Aminophenol-based carbon dots with dual wavelength fluorescence emission for determination of heparin

We describe the preparation of carbon quantum dots (C-dots) by a one-step hydrothermal method starting from o-aminophenol as the precursor. The C-dots exhibit bright both blue fluorescence (with excitation/emission peaks at 300/410 nm and with quantum yield of 0.40) and green fluorescence (420/500 n... Full description

Journal Title: Mikrochimica acta (1966) 2016, Vol.184 (1), p.187-193
Main Author: Wang, Runxia
Other Authors: Wang, Xiufang , Sun, Yimin
Format: Electronic Article Electronic Article
Language: English
Subjects:
Publisher: Vienna: Springer Vienna
ID: ISSN: 0026-3672
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recordid: cdi_proquest_journals_1968407994
title: Aminophenol-based carbon dots with dual wavelength fluorescence emission for determination of heparin
format: Article
creator:
  • Wang, Runxia
  • Wang, Xiufang
  • Sun, Yimin
subjects:
  • Aminophenol
  • Analytical Chemistry
  • Anticoagulants (Medicine)
  • Building materials
  • Characterization and Evaluation of Materials
  • Chemistry
  • Chemistry and Materials Science
  • Emission
  • Fluorescence
  • Hydrogen bonding
  • Microengineering
  • Nanochemistry
  • Nanotechnology
  • Original Paper
  • Quantum dots
  • Quenching (cooling)
  • Sulfates
  • Synergistic effect
  • X-ray spectroscopy
ispartof: Mikrochimica acta (1966), 2016, Vol.184 (1), p.187-193
description: We describe the preparation of carbon quantum dots (C-dots) by a one-step hydrothermal method starting from o-aminophenol as the precursor. The C-dots exhibit bright both blue fluorescence (with excitation/emission peaks at 300/410 nm and with quantum yield of 0.40) and green fluorescence (420/500 nm; QY 0.28) without any other element doping. The unique emission properties are attributed to a synergistic effect of amino and hydroxy groups on the surface of the C-dots. The C-dots are shown to be viable fluorescent probes for heparin. The positively charged surface amino groups are assumed to interact with sulfate and carboxy groups in heparin via electrostatic interactions and hydrogen bonding. This causes the blue fluorescence of C-dots to be turned off (quenched). Fluorescence is strongest at a pH value of 6. The fluorometric calibration plot is linear in the 10 to 100 nM concentration range, with an 8.2 nM detection limit (at a signal-to-noise ratio of 3). Graphical abstract Carbon quantum dots with dual fluorescence emission bands were synthesized and are shown to be a viable fluorescent probe for heparin.
language: eng
source:
identifier: ISSN: 0026-3672
fulltext: no_fulltext
issn:
  • 0026-3672
  • 1436-5073
url: Link


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titleAminophenol-based carbon dots with dual wavelength fluorescence emission for determination of heparin
creatorWang, Runxia ; Wang, Xiufang ; Sun, Yimin
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descriptionWe describe the preparation of carbon quantum dots (C-dots) by a one-step hydrothermal method starting from o-aminophenol as the precursor. The C-dots exhibit bright both blue fluorescence (with excitation/emission peaks at 300/410 nm and with quantum yield of 0.40) and green fluorescence (420/500 nm; QY 0.28) without any other element doping. The unique emission properties are attributed to a synergistic effect of amino and hydroxy groups on the surface of the C-dots. The C-dots are shown to be viable fluorescent probes for heparin. The positively charged surface amino groups are assumed to interact with sulfate and carboxy groups in heparin via electrostatic interactions and hydrogen bonding. This causes the blue fluorescence of C-dots to be turned off (quenched). Fluorescence is strongest at a pH value of 6. The fluorometric calibration plot is linear in the 10 to 100 nM concentration range, with an 8.2 nM detection limit (at a signal-to-noise ratio of 3). Graphical abstract Carbon quantum dots with dual fluorescence emission bands were synthesized and are shown to be a viable fluorescent probe for heparin.
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subjectAminophenol ; Analytical Chemistry ; Anticoagulants (Medicine) ; Building materials ; Characterization and Evaluation of Materials ; Chemistry ; Chemistry and Materials Science ; Emission ; Fluorescence ; Hydrogen bonding ; Microengineering ; Nanochemistry ; Nanotechnology ; Original Paper ; Quantum dots ; Quenching (cooling) ; Sulfates ; Synergistic effect ; X-ray spectroscopy
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descriptionWe describe the preparation of carbon quantum dots (C-dots) by a one-step hydrothermal method starting from o-aminophenol as the precursor. The C-dots exhibit bright both blue fluorescence (with excitation/emission peaks at 300/410 nm and with quantum yield of 0.40) and green fluorescence (420/500 nm; QY 0.28) without any other element doping. The unique emission properties are attributed to a synergistic effect of amino and hydroxy groups on the surface of the C-dots. The C-dots are shown to be viable fluorescent probes for heparin. The positively charged surface amino groups are assumed to interact with sulfate and carboxy groups in heparin via electrostatic interactions and hydrogen bonding. This causes the blue fluorescence of C-dots to be turned off (quenched). Fluorescence is strongest at a pH value of 6. The fluorometric calibration plot is linear in the 10 to 100 nM concentration range, with an 8.2 nM detection limit (at a signal-to-noise ratio of 3). Graphical abstract Carbon quantum dots with dual fluorescence emission bands were synthesized and are shown to be a viable fluorescent probe for heparin.
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abstractWe describe the preparation of carbon quantum dots (C-dots) by a one-step hydrothermal method starting from o-aminophenol as the precursor. The C-dots exhibit bright both blue fluorescence (with excitation/emission peaks at 300/410 nm and with quantum yield of 0.40) and green fluorescence (420/500 nm; QY 0.28) without any other element doping. The unique emission properties are attributed to a synergistic effect of amino and hydroxy groups on the surface of the C-dots. The C-dots are shown to be viable fluorescent probes for heparin. The positively charged surface amino groups are assumed to interact with sulfate and carboxy groups in heparin via electrostatic interactions and hydrogen bonding. This causes the blue fluorescence of C-dots to be turned off (quenched). Fluorescence is strongest at a pH value of 6. The fluorometric calibration plot is linear in the 10 to 100 nM concentration range, with an 8.2 nM detection limit (at a signal-to-noise ratio of 3). Graphical abstract Carbon quantum dots with dual fluorescence emission bands were synthesized and are shown to be a viable fluorescent probe for heparin.
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