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Multifunctional Fe3O4/Aucore/satellite nano-cubes: an efficient chemical synthesis, characterization and functionalization of streptavidin protein

Title
Multifunctional Fe3O4/Aucore/satellite nano-cubes: an efficient chemical synthesis, characterization and functionalization of streptavidin protein
Authors
Abbas, MohamedRamuluTorati, SriKim, CheolGi
DGIST Authors
Kim, CheolGi
Issue Date
2017
Citation
Dalton Transactions, 46(7), 2303-2309
Type
Article
Article Type
Article
Keywords
Biological ApplicationsBiomedical ApplicationsBiosynthesisCancerCatalytic ActivityEnergy Dispersive SpectroscopyFacile SynthesisFluorescence Confocal MicroscopyFunctionalizationsFunctionalizedGold DepositsGold NanoparticlesGreen SynthesisHigh Resolution Transmission Electron MicroscopyImmobilizationcrystal StructureInverse Spinel StructuresIron Oxide NanoparticlesOne Pot ReactionPolyvinyl PyrrolidoneProteinsQuantum Interference DevicesSquidsTransmission Electron MicroscopyX Ray Diffraction DataX Ray Diffraction
ISSN
1477-9226
Abstract
A novel and efficient chemical approach for the synthesis of Fe3O4/Au core/satellite nanocubes is reported. In a one-pot reaction, metallic Au nanodots were successfully deposited on the polyvinylpyrrolidone (PVP) functionalized Fe3O4 nanocube surface for the fabrication of a core/satellite structure (Fe3O4/Au) by the reduction of HAuCl4 using ammonia. Transmission electron microscopy and energy dispersive spectroscopy mapping revealed that small Au nanodots of about 2 nm average size decorated the surface of Fe3O4 nanocubes. X-ray diffraction data was used to confirm the formation of both the phases of a cubic inverse spinel structure for Fe3O4 and a bcc structure for Au in the core/satellite structure of Fe3O4/Au nanocubes. The magnetic properties of the seed Fe3O4 nanocubes and Fe3O4/Au core/satellite nanocubes were measured by using a superconducting quantum interference device at 300 K. For biological application purposes, the as-synthesized Fe3O4/Au core/satellite nanocubes were functionalized by cysteamine followed by successful immobilization of streptavidin protein as confirmed through the fluorescence confocal microscopy images. © The Royal Society of Chemistry.
URI
http://hdl.handle.net/20.500.11750/5033
DOI
10.1039/c6dt04486g
Publisher
Royal Society of Chemistry
Related Researcher
  • Author Kim, Cheol Gi Lab for NanoBio-MatErials & SpinTronics(nBEST)
  • Research Interests Magnetic Materials and Spintronics; Converging Technology of Nanomaterials and Biomaterials; Bio-NEMS;MEMS
Files:
There are no files associated with this item.
Collection:
Department of Emerging Materials ScienceLab for NanoBio-Materials & SpinTronics(nBEST)1. Journal Articles


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