Fluorescent Silica Nanoparticles Functionalized on Multi-walled Carbon Nanotubes: Fabrication and Fluorescent Properties
- Authors
- Zhang, Linghe; Veerapandian, Murugan; Yun, Kyu Sik
- Issue Date
- 20-Jun-2014
- Publisher
- KOREAN BIOCHIP SOCIETY-KBCS
- Keywords
- Silica nanoparticles; Multi-walled carbon nanotubes; Functionalization; Enhanced fluorescence; Photostability
- Citation
- BIOCHIP JOURNAL, v.8, no.2, pp.83 - 90
- Journal Title
- BIOCHIP JOURNAL
- Volume
- 8
- Number
- 2
- Start Page
- 83
- End Page
- 90
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/12532
- DOI
- 10.1007/s13206-014-8203-2
- ISSN
- 1976-0280
- Abstract
- We report the fabrication and fluorescent properties of hybrid material composed of fluorescent silica nanoparticles (FSNs) functionalized multi-walled carbon nanotubes (MWENTs). Stober 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 similar to 150 +/- 50 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.
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