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Multifunctional Fe3O4/Aucore/satellite nano-cubes: an efficient chemical synthesis, characterization and functionalization of streptavidin protein
- Multifunctional Fe3O4/Aucore/satellite nano-cubes: an efficient chemical synthesis, characterization and functionalization of streptavidin protein
- Abbas, Mohamed; RamuluTorati, Sri; Kim, CheolGi
- DGIST Authors
- Kim, CheolGi
- Issue Date
- Dalton Transactions, 46(7), 2303-2309
- Article Type
- Biological Applications; Biomedical Applications; Biosynthesis; Cancer; Catalytic Activity; Energy Dispersive Spectroscopy; Facile Synthesis; Fluorescence Confocal Microscopy; Functionalizations; Functionalized; Gold Deposits; Gold Nanoparticles; Green Synthesis; High Resolution Transmission Electron Microscopy; Immobilizationcrystal Structure; Inverse Spinel Structures; Iron Oxide Nanoparticles; One Pot Reaction; Polyvinyl Pyrrolidone; Proteins; Quantum Interference Devices; Squids; Transmission Electron Microscopy; X Ray Diffraction Data; X Ray Diffraction
- 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.
- Royal Society of Chemistry
- Related Researcher
Kim, Cheol Gi
Lab for NanoBio-MatErials & SpinTronics(nBEST)
Magnetic Materials and Spintronics; Converging Technology of Nanomaterials and Biomaterials; Bio-NEMS;MEMS
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- Department of Emerging Materials ScienceLab for NanoBio-Materials & SpinTronics(nBEST)1. Journal Articles
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