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magnetic nanoparticles produced by surfactant

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US Patent for Magnetic nanoparticles Patent (Patent ...

Dec 21, 2009 · TECHNICAL FIELD. The present invention relates to methods for preparing magnetic nanoparticles and to nanoparticles produced by those methods. More particularly, the invention relates to methods for preparing nanoparticles comprising metal, metal carbide, metal nitride, metal sulfide, metal phosphide, metal oxide or a mixture thereof.

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Effects of surfactant and polymerization method ... - DeepDyve

Jul 26, 2016 · Read "Effects of surfactant and polymerization method on the synthesis of magnetic colloidal polymeric nanoparticles, Journal of Nanoparticle Research" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

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Enhanced rheological properties of dilute suspensions of ...

We present an experimental study of the magnetorheological response of dilute suspensions of magnetic nanoparticles in concentrated amphiphilic surfactant solutions. Low particle content (<0.4% v/v) induced significant increase in viscosity, enhancing the shear thinning behavior observed in the absence of the nanoparticles.A magnetic field induced yield stress of up to 10 Pa at magnetic fields ...

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Magnetic nanoparticles produced by surfactant-assisted ...

The nanoparticles showed superparamagnetic behavior at room temperature, except for the SmCo nanoparticles that were ferromagnetic. Nanoparticles of all types showed ferromagnetic behavior at low temperatures. The compositions of nanoparticles prepared by milling the SmCo, NdFeB, and FeCo powders were found to be deviated from the starting powders.

  • Published in: Journal of Applied Physics · 2006Authors: Vamsi M Chakka · Baki Altuncevahir · Z Q Jin · Yang Li · J P LiuAffiliation: University of Texas at ArlingtonAbout: Ferromagnetism · Superparamagnetism · Magnetic nanoparticles · Nanocrystalline ma.Get Price

US Patent Application for Magnetic Nanoparticles Patent ...

A magnetic nanoparticle includes a magnetic core and a superparamagnetic outer shell, in which the outer shell enhances magnetic properties of the nanoparticle. The enhanced magnetic properties of the magnetic nanoparticle allow for highly sensitive detection as well as diminished non-specific aggregation of nanoparticles.

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Effects of surfactant and polymerization method on the ...

In this work, magnetic nanoparticles were dispersed using different stabilizers. Subsequently, ferrofluids stabilized using the mixture of ABEX/IGEPAL and acrylic acid ... Liu JP (2006) Magnetic nanoparticles produced by surfactant-assisted ball milling. J Appl Phys 99(08E912):1–3 Google Scholar.

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Accelerated oil droplet separation from produced water ...

Ko, S, Prigiobbe, V, Huh, C, Bryant, SL, Bennetzen, MV & Mogensen, K 2014, Accelerated oil droplet separation from produced water using magnetic nanoparticles. in Society of Petroleum Engineers - SPE Annual Technical Conference and Exhibition, ATCE 2014.

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Surfactant Effects on the Structural and Magnetic ...

The magnetic properties were investigated by measuring the hysteresis loops where the surfactant influence on their collective magnetic behavior and subsequent AC magnetic hyperthermia response is apparent. The results indicate that the produced iron oxide nanoparticles may be consider...

Surfactant Effects on the Structural and Magnetic ...

Surfactant Effects on the Structural and Magnetic Properties of Iron Oxide Nanoparticles ... nanoparticles produced during coprecipitation within an alkaline pH. In addition, we have prepared a batch of iron oxide nanoparticles without any surfactant for direct compar-ison.

  • Published in: Journal of Physical Chemistry C · 2014Authors: Maria Filippousi · M Angelakeris · M Katsikini · E C Paloura · Ilias Efthimiopoulos · Y .Get Price

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 ...

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Nanorod morphology control of iron oxide nanoparticles ...

Magnetic nanoparticles (NPs) belong to a unique class of nanomaterials with enormous interesting applications where shape control synthesis of magnetic nanomaterials is required,,, . Common iron oxide NPs consist of α-Fe 2 O 3 and Fe 3 O 4 known as hematite and magnetite, respectively.

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Nd-Fe-B Nanoparticles through Surfactant Assisted ...

transgranular fracture, which influences both the morphology of the nanoparticles and the magnetic properties. This paper utilizes alloy design to alter the fracture behavior from transgranular fracture to intergranular fracture. Nd-rich Nd 2 Fe 14 B alloys were produced .

  • Authors: Jordann M BornhoftAbout: Nanoparticle · Neodymium magnet[PDF]Get Price

US Patent for Magnetic nanoparticles Patent (Patent ...

Dec 21, 2009 · TECHNICAL FIELD. The present invention relates to methods for preparing magnetic nanoparticles and to nanoparticles produced by those methods. More particularly, the invention relates to methods for preparing nanoparticles comprising metal, metal carbide, metal nitride, metal sulfide, metal phosphide, metal oxide or a mixture thereof.

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Synthesis of highly magnetic iron nanoparticles suitable ...

We describe the synthesis of highly magnetic iron nanoparticles using a novel surfactant, a {beta}-diketone. We have produced 6 nm iron nanoparticles with an unusually high saturation magnetization of more than 80% the value of bulk iron. Additionally, we measured a particle susceptibility of 14 ...

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Magnetic Nanoparticles Produced in Spontaneous Cationic ...

Read "Magnetic Nanoparticles Produced in Spontaneous Cationic-Anionic Vesicles: Room Temperature Synthesis and Characterization, Journal of Colloid and Interface Science" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

  • Published in: Journal of Colloid and Interface Science · 1995Authors: Iskandar I Yaacob · A C Nunes · Arijit BoseAffiliation: University of Rhode IslandAbout: Surface layer · Magnetic particle inspection · Sodium hydroxide · Alkali metal · Gel per.Get Price

Novel NdCo5 nanoflakes and nanoparticles produced by ...

Jan 25, 2012 · Abstract. High-energy ball milling has been shown to be a promising method for the fabrication of rare earth—transition metal nanopowders. In this work, NdCo 5 nanoflakes and nanoparticles have been produced by a two-stage high-energy ball milling (HEBM), by first using wet HEBM to prepare precursor nanocrystalline powders followed by surfactant-assisted HEBM.

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Synthesis of highly magnetic iron nanoparticles suitable ...

We describe the synthesis of highly magnetic iron nanoparticles using a novel surfactant, a {beta}-diketone. We have produced 6 nm iron nanoparticles with an unusually high saturation magnetization of more than 80% the value of bulk iron. Additionally, we measured a particle susceptibility of 14 ...

[PDF]Get Price

Magnetic Nanoparticles Produced in Spontaneous Cationic ...

Read "Magnetic Nanoparticles Produced in Spontaneous Cationic-Anionic Vesicles: Room Temperature Synthesis and Characterization, Journal of Colloid and Interface Science" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

  • Published in: Journal of Colloid and Interface Science · 1995Authors: Iskandar I Yaacob · A C Nunes · Arijit BoseAffiliation: University of Rhode IslandAbout: Surface layer · Magnetic particle inspection · Sodium hydroxide · Alkali metal · Gel per.Get Price

Magnetic nanoparticles produced by surfactant-assisted ...

Apr 24, 2006 · Nanoparticles of Fe, Co, FeCo, SmCo, and NdFeB systems with sizes smaller than 30 nm and narrow size distribution have been successfully prepared by ball milling in the presence of surfactants and organic carrier liquid. It has been observed that the nanoparticles prepared by milling Fe and FeCo powders were close to spherical in their shapes, whereas those of Co, SmCo, and .

Synthesis, characterization, applications, and challenges ...

Aug 19, 2016 · Recently, iron oxide nanoparticles (NPs) have attracted much consideration due to their unique properties, such as superparamagnetism, surface-to-volume ratio, greater surface area, and easy separation methodology. Various physical, chemical, and biological methods have been adopted to synthesize magnetic NPs with suitable surface chemistry.

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Spinel‐Structured Nanoparticles for Magnetic and ...

It is shown that magnetic properties depend not only on the particle size and Mn doping but also on the particles clustering. The applications for magnetic fluids, gels, and coating are extensively described. Meanwhile, the spinel MgAl2O4 nanoparticles have also been prepared by the same simple method from commercial starting materials.

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