Info.
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Vol.8 - No.2 (2014.06.20) |
Title
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Fluorescent Silica Nanoparticles Functionalized on Multi-walled Carbon Nanotubes: Fabrication and Fluorescent Properties |
Authors
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Linghe Zhang1, Murugan Veerapandian1,2 & Kyu Sik Yun1,* |
Institutions
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1Department of Bionanotechnology, Gachon University, Gyeonggi-Do 461-701, Korea
2Department of Chemistry, University of Montreal, CP 6128, Succursale Centre-ville, Montreal, QC H3C 3J7, Canada |
Abstract
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We report the fabrication and fluorescent properties of hybrid material composed of fluorescent silica nanoparticles (FSNs) functionalized multi-walled carbon nanotubes(MWCNTs). St?er method derived FSNs were successfully conjugated with MWCNTS chemically activated concentrated acids, poly(acrylic acid) (PAA) and 3-aminopropyl-trimethoxysilane (APTES) to obtain the nanocomposite FSNs/MWCNTs. Electron microscopic investigations revealed the spherical shape and smooth surface of FSNs with the diameter ~150?0 nm. Activated functional groups of MWCNTs provided the necessary support for functionalization of FSNs. FT-IR spectral analysis shows the structural integrity of FSNs, MWCNTs, and the hybrid FSNs/MWCNTs. Fluorescent emission property of FSNs/MWCNTs are observed to be significant than pristine dye fluorescein isothiocyanate and FSNs. Enhanced fluorescent emission and photostability of FSNs/MWCNTs provides promising feasibility for further exploration in biomedical applications. |
Keyword
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Silica nanoparticles, Multi-walled carbon nanotubes, Functionalization, Enhanced fluorescence, Photostability |
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