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magnetic separation nickel nanoparticles


  • Applications of nanoparticles in ... - PubMed Central (PMC)

    Apr 30, 2004· Functionalised magnetic nanoparticles have found many applications including cell separation and probing; these and other applications are discussed in a recent review . Most of the magnetic particles studied so far are spherical, which somewhat limits the possibilities to make these nanoparticles multifunctional.

  • Nanoparticle - Wikipedia

    Nanoparticles are particles between 1 and 100 nanometres (nm) in size with a surrounding interfacial layer. The interfacial layer is an integral part of nanoscale matter, fundamentally affecting all of its properties. The interfacial layer typically consists of ions, inorganic and organic molecules. Organic molecules coating inorganic nanoparticles are known as stabilizers, capping and surface ...

  • PAPER OPEN ACCESS Synthesis and magnetic properties of ...

    Synthesis and magnetic properties of graphene oxide-decorated cobalt, manganese and nickel ferrite nanoparticles prepared by polymerized route To cite this article: T V Tran et al 2019 IOP Conf. Ser.: Mater. Sci. Eng. 479 012114 View the article online for updates and enhancements.

  • Controlled Design of Size-Tunable Monodisperse Nickel ...

    We present here a complete study on a synthesis of nickel nanoparticles involving the reaction of [Ni(acac)2] with oleylamine (OA) and trioctylphosphine (TOP) reactants, whose simultaneous presence and relative amounts are paramount. The role of every reactant in the nucleation and growth of the nanoparticles has been delineated: OA is the reductant and thus controls the nucleation rate ...

  • Engineering Magnetic Properties of Ni Nanoparticles by Non ...

    This work focuses on the magnetism-control study of nickel (Ni) nanoparticles (NPs) with non-magnetic cores of noble metals (M = Ag, Au). Monodispersed M NPs used as templates were synthesized by reducing their salt with a weak reductant—oleylamine (OA). The OA acted as surfactant and non-coordinating reagent in the preparation of Ni NPs with a narrow size distribution.

  • SYSTEMATIC APPROACH TO COMPARE THE INFLAMMATORY …

    process involving cell labeling with magnetic nanoparticles in first step and separating out the labeled cell using magnetic separation device in second step (Pankhurst, et al., 2009). Zinc nanoparticles, having a high selectivity property, are used industrially as a catalyst. Selectivity property of a catalyst is the amount of reactant

  • Carboxylate Coated Nickel Ferrite Nanoparticles for High ...

    Carboxylate Coated Nickel Ferrite Nanoparticles for High-gradient Magnetic Separation T.M. Trad1, R. Alvarez1, A. Apblett2 and K.S. Martirosyan3 1Department of Chemistry and Environmental Sciences, University of Texas at Brownsville, Brownsville, TX, USA, 78520, [email protected] 2Department of Chemistry, Oklahoma State University, Stillwater, OK, USA 74078

  • Synthesis of Nickel Nanoparticles in Water-in-Oil ...

    Apr 05, 2000· The synthesis of nickel nanoparticles by the reduction of nickel chloride with hydrazine in the cationic water-in-oil microemulsions of water/CTAB (cetyltrimethylammonium bromide)/n-hexanol at 73 °C has been studied. By the analyses of electron diffraction pattern and X-ray diffraction, the resultant particles were characterized to be the pure nickel crystalline with a face-centered cubic ...

  • Exploiting Size-Dependent Drag and Magnetic Forces for ...

    The use of high gradient magnetic separation (HGMS) has been used by several groups to separate colloid suspensions of large magnetic nanoparticles, but the focus was not necessarily on the sorting of a polydisperse MNP suspension into multiple samples having …

  • Synthesis and characterization of core­shell structure ...

    a good candidate for biomedical applications, such as magnetic separation, drug targeting, image contrast in magnetic resonance imaging and hyperthermia therapy [1,2,3]. ... Several synthetic routes for producing magnetic nanoparticles have been explored during the ... iron­nickel particles ...

  • Removal of Ni(II) by magnetic nanoparticles - ScienceDirect

    Removal of Ni(II) by magnetic nanoparticles. ... FTIR spectra of the bare magnetic nanoparticles and nickel loaded magnetic nanoparticles were collected with a FTLA-2000 ABB spectrophotometer, ... The value of the separation factor (R L) indicates the nature of the adsorption process.

  • Nickel nanoparticle decorated graphene for highly ...

    magnetic adsorbent for the separation/isolation of His6-tagged recombinant proteins from a complex sample matrix (cell lysate). The targeted protein species is captured onto the surface of the GP–Ni hybrid via specific metal affinity force between polyhistidine groups and nickel nanoparticles.

  • Magnetic properties of NiO nanoparticles

    We report magnetic field dependence of magnetization on nickel oxide nanoparticles, ferrihydrite nanoparticles, and a nanocomposite of both nanoparticle systems. The process of magnetization in ...

  • Advances in Materials Science and Engineering - Hindawi

    The magnetic Ni nanoparticles of 10–30 nm in size were synthesized by the reduction of Ni2+ by NaBH4 at room temperature. The amount of added water in the formation of Ni nanoparticles is a significant factor, which ensures that Ni nanoparticles are not oxidized by oxygen. XRD patterns and FESEM micrographs showed the constituent and structure and micromorphology.

  • Magnetic Nanoparticles: Surface Effects and Properties ...

    Oct 25, 2013· Magnetic nanoparticles can also be used in water treatment . There is still a huge potential for magnetic nanoparticles to be implemented in a wider range of applications, which requires advances in the synthesis methods in order to produce nanoparticles with specific sizes, very narrow size distribution and well controlled magnetic properties.

  • Magnetic nanoparticles: preparation, physical properties ...

    Feb 21, 2012· Industrial applications of magnetic nanoparticles cover a broad spectrum of magnetic recording media and biomedical applications, for example, magnetic resonance contrast media and therapeutic agents in cancer treatment [17,18]. Each potential application of the magnetic nanoparticles requires having different properties.

  • Magnetic Nanoparticles |authorSTREAM

    Introduction : Introduction Magnetic nanoparticles are a class of nanoparticle that can be manipulated using magnetic fields. Such particles commonly consist of two components, a magnetic material, often iron, nickel and cobalt, and a chemical component that has functionality.

  • Nickel/Nickel Phosphide Core−Shell Structured ...

    Discrete, magnetically recyclable, and oxidation-resistant nanoparticles with nickel/nickel phosphide core−shell structure were synthesized through surface-phosphatizing Ni nanoparticles using triphenylphosphine as the phosphorus source. The Ni2P shell thickness was tunable by changing the reaction time in the mild temperature organic solution.

  • US20140212335A1 - Magnetic separation using nanoparticles ...

    The approaches described herein for bacterial contaminant removal, e.g., magnetic separation, from fluids have several advantages. For instance, magnetic separation using nanoparticles is generic and can be used on many target bacterial contaminant species, including Gram positive bacteria, Gram negative bacteria, and/or bacterial endotoxins.

  • Synthesis of nickel ferrite nanoparticles as an efficient ...

    Characterization of nickel ferrite nanoparticles. Characterization of nickel ferrite nanocrystallites was performed using XRD (Fig. 2), TEM and SEM (Fig. 3). XRD spectrum of the prepared sample was investigated in order to confirm the formation of magnetic NFNs in the synthesized sample.

  • Magnetic nanoparticles: preparation, physical properties ...

    Industrial applications of magnetic nanoparticles cover a broad spectrum of magnetic recording media and biomedical applications, for example, magnetic resonance contrast media and therapeutic agents in cancer treatment [17, 18]. Each potential application of the magnetic nanoparticles requires having different properties.

  • Ni/NiO Core/Shell Nanoparticles for Selective Binding and ...

    Jul 27, 2006· Ni/NiO core/shell nanoparticles having high affinity with polyhistidine were synthesized by decomposition of a Ni surfactant complex followed by air oxidation. Ni/NiO nanoparticles showed selective and efficient binding to histidine-tagged proteins and easy separation by using a magnet. These provided a more convenient way to efficient purification of histidine-tagged proteins compared …

  • Synthesis and characterization of nickel nanoparticles by ...

    Mar 15, 2003· Nickel nanoparticles have important applications in catalysts and conducting and magnetic materials. However, only a few works on the preparation of nickel nanoparticles have been reported until now. Two typical examples were the polyol process by Kurihara et al. and the microemulsion technique by us .

  • Magnetic nanoparticles - Wikipedia

    Magnetic nanoparticles are a class of nanoparticle that can be manipulated using magnetic fields.Such particles commonly consist of two components, a magnetic material, often iron, nickel and cobalt, and a chemical component that has functionality. While nanoparticles are smaller than 1 micrometer in diameter (typically 1–100 nanometers), the larger microbeads are 0.5–500 micrometer in ...

  • Properties and Applications of Magnetic Nanoparticles ...

    Magnetic nanoparticles are nanomaterials consist of magnetic elements, such as iron, nickel, cobalt, chromium, manganese, gadolinium, and their chemical compounds. Magnetic nanoparticles are superparamagnetic because of their nanoscale size, offering great potentials in a variety of applications in their bare form or coated with a surface ...

  • Synthesis and Characterization of Nickel Ferrite Magnetic ...

    Synthesis and Characterization of Nickel Ferrite Magnetic Nanoparticles Article (PDF Available) in Materials Research Bulletin 46(12):2208-2211 · December 2011 with …

  • Regio‐ and Chemoselective Reduction of Nitroarenes and ...

    Reduction by magnetic nano‐Fe 3 O 4 –Ni: A facile, simple and environmentally friendly hydrogen‐transfer reaction that takes place over recyclable ferrite–nickel magnetic nanoparticles (Fe 3 O 4 Ni) by using glycerol as hydrogen source allows aromatic amines and alcohols to be synthesized from the precursor nitroarenes and carbonyl compounds (see figure).

  • Synthesis of Nickel Zinc Iron Nanoparticles by ...

    Synthesis of Nickel Zinc Iron Nanoparticles by Coprecipitation Technique Kandasamy Velmurugan a,*, ... Nanoparticles nickel ferrite of size 6 – 8 nm, synthesized by the coprecipitation method with x varying from ... particles were collected at this stage by using magnetic separation.

  • Magnetite Nanoparticles – nanoComposix

    Our magnetite nanoparticles are colloidal iron oxide (Fe3O4) materials that exhibit superparamagnetic properties at ambient temperatures. This material is used in nanotoxicology and magnetic nanotechnology research and development. The size, non-toxicity, and superparamagnetic properties of the magnetite nanoparticles

  • Size analysis and magnetic structure of nickel nanoparticles

    By Langevin function fitting with a uniform model in [24], This difference in magnetic structure between ferromagnetic Ms of nickel nanoparticles of TEM size about 3.3 nm was found and ferrimagnetic nanoparticles suggests the difference in the approximately the same as that of bulk nickel with ''magnetic'' nature of magnetic ordering.

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