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      Ultrasensitive electrospun fluorescent nanofibrous membrane for rapid visual colorimetric detection of H2O2

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      Author(s)
      Senthamizhan A.
      Balusamy, B.
      Aytac Z.
      Uyar, Tamer
      Date
      2016-02
      Source Title
      Analytical and Bioanalytical Chemistry
      Print ISSN
      1618-2642
      Publisher
      Springer Verlag
      Volume
      408
      Issue
      5
      Pages
      1347 - 1355
      Language
      English
      Type
      Article
      Item Usage Stats
      230
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      220
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      Abstract
      We report herein a flexible fluorescent nanofibrous membrane (FNFM) prepared by decorating the gold nanocluster (AuNC) on electrospun polysulfone nanofibrous membrane for rapid visual colorimetric detection of H2O2. The provision of AuNC coupled to NFM has proven to be advantageous for facile and quick visualization of the obtained results, permitting instant, selective, and on-site detection. We strongly suggest that the fast response time is ascribed to the enhanced probabilities of interaction with AuNC located at the surface of NF. It has been observed that the color change from red to blue is dependent on the concentration, which is exclusively selective for hydrogen peroxide. The detection limit has been found to be 500 nM using confocal laser scanning microscope (CLSM), visually recognizable with good accuracy and stability. A systematic comparison was performed between the sensing performance of FNFM and AuNC solution. The underlying sensing mechanism is demonstrated using UV spectra, transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). The corresponding disappearance of the characteristic emissions of gold nanoclusters and the emergence of a localized surface plasmon resonance (LSPR) band, stressing this unique characteristic of gold nanoparticles. Hence, it is evident that the conversion of nanoparticles from nanoclusters has taken place in the presence of H2O2. Our work here has paved a new path for the detection of bioanalytes, highlighting the merits of rapid readout, sensitivity, and user-friendliness.
      Keywords
      Fluorescence
      Gold nanocluster
      Hydrogen peroxide
      Electrospinning
      Nanofiber
      Sensor
      Color
      Colorimetry
      Electrospinning
      Fluorescence
      Gold
      High resolution transmission electron microscopy
      Hydrogen peroxide
      Multilayers
      Nanoclusters
      Nanofibers
      Nanoparticles
      Oxidation
      Peroxides
      Photoelectron spectroscopy
      Sensors
      Surface plasmon resonance
      Transmission electron microscopy
      Ultraviolet spectroscopy
      Characteristic emission
      Confocal laser scanning microscope
      Gold nanocluster
      Gold Nanoparticles
      Localized surface plasmon resonance
      Nanofibrous membranes
      Sensing performance
      Visual colorimetric detections
      X ray photoelectron spectroscopy
      artificial membrane
      Gold
      Hydrogen peroxide
      Metal nanoparticle
      Nanofiber
      Artificial membrane
      Chemistry
      Devices
      Electrochemical analysis
      Genetic procedures
      Infrared spectroscopy
      Surface plasmon resonance
      Transmission electron microscopy
      X ray photoelectron spectroscopy
      Biosensing Techniques
      Electrochemical Techniques
      Gold
      Hydrogen Peroxide
      Membranes, Artificial
      Metal Nanoparticles
      Microscopy, Electron, Transmission
      Nanofibers
      Photoelectron Spectroscopy
      Spectroscopy, Fourier Transform Infrared
      Surface Plasmon Resonance
      Permalink
      http://hdl.handle.net/11693/36935
      Published Version (Please cite this version)
      https://doi.org/10.1007/s00216-015-9149-5
      Collections
      • Institute of Materials Science and Nanotechnology (UNAM) 2098
      • Nanotechnology Research Center (NANOTAM) 1125
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