Magnetic Nanoparticles

Katz, Evgeny

doi:10.3390/magnetochemistry6010006

Cited by 29 publications

(14 citation statements)

References 18 publications

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“…In recent years, developments of magnetic nanoparticles have been receiving significant attention due to a wide range of potential applications and high absorption in the superparamagnetic characteristics, high surface-to-volume ratio, etc [1] . Spinel ferrites are the most attractive ferrite because of the presence of magnetic and electrical properties such as high saturation magnetization (Ms) as well as high dielectric properties and initial permeability, low eddy current loss [2] , [3] , [4] .…”

Section: Introductionmentioning

confidence: 99%

Effect of reaction condition on microstructure and properties of (NiCuZn)Fe2O4 nanoparticles synthesized via co-precipitation with ultrasonic irradiation

Peng

Xia

Cui

et al. 2021

Ultrasonics Sonochemistry

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Highlights Crystallites sizes of nanoparticles synthesized via ultrasound irradiation were less than 40nm. Ms and Hc of nanoparticles obtained at 25℃ were higher than at 50℃ under the same power. The samples exhibited the highest Ms at 25℃ and the lowest Hc at 50℃ both for 60W. The ultrasonic irradiation had a positive effect on improving the ferrite magnetic properties.

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Section: Introductionmentioning

confidence: 99%

Effect of reaction condition on microstructure and properties of (NiCuZn)Fe2O4 nanoparticles synthesized via co-precipitation with ultrasonic irradiation

Peng

Xia

Cui

et al. 2021

Ultrasonics Sonochemistry

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“…The most widely applied examples of magnetic materials are magnetite (Fe 3 O 4 ) and maghemite (γ-Fe 2 O 3 ), which are now used in medicine for diagnostics and the treatment of oncological diseases, drug delivery, etc. [10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Microwave-Assisted Synthesis of Water-Dispersible Humate-Coated Magnetite Nanoparticles: Relation of Coating Process Parameters to the Properties of Nanoparticles

et al. 2020

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Nowadays, there is a demand in the production of nontoxic multifunctional magnetic materials possessing both high colloidal stability in water solutions and high magnetization. In this work, a series of water-dispersible natural humate-polyanion coated superparamagnetic magnetite nanoparticles has been synthesized via microwave-assisted synthesis without the use of inert atmosphere. An impact of a biocompatible humate-anion as a coating agent on the structural and physical properties of nanoparticles has been established. The injection of humate-polyanion at various synthesis stages leads to differences in the physical properties of the obtained nanomaterials. Depending on the synthesis protocol, nanoparticles are characterized by improved monodispersity, smaller crystallite and grain size (up to 8.2 nm), a shift in the point of zero charge (6.4 pH), enhanced colloidal stability in model solutions, and enhanced magnetization (80 emu g−1).

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“…Besides AuNPs, magnetic nanoparticles have also found application as signal labels in biosensing systems, such as molecular detection and related strategies that rely on ligand-receptor binding. In particular, iron oxide magnetic nanoparticles (NPs), such as magnetite (Fe 3 O 4 ) and maghemite (γ-Fe 2 O 3 ), are particularly appealing due to their magnetic properties, tunable size, biocompatibility, and greater ease of synthesis than other magnetic materials [ 20 , 21 , 22 ]. Indeed, recent studies have shown how to use magnetic nanoparticles to improve the efficiency of the functionalization process [ 23 ], to realize multiplexing immunoassays [ 24 ] and for magnetic detection [ 14 , 25 , 26 ].…”

Section: Introductionmentioning

confidence: 99%

Core-Shell Magnetic Nanoparticles for Highly Sensitive Magnetoelastic Immunosensor

et al. 2020

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A magnetoelastic (ME) biosensor for wireless detection of analytes in liquid is described. The ME biosensor was tested against human IgG in the range 0–20 μg∙mL−1. The sensing elements, anti-human IgG produced in goat, were immobilized on the surface of the sensor by using a recently introduced photochemical immobilization technique (PIT), whereas a new amplification protocol exploiting gold coated magnetic nanoparticles (core-shell nanoparticles) is demonstrated to significantly enhance the sensitivity. The gold nanoflowers grown on the magnetic core allowed us to tether anti-human IgG to the nanoparticles to exploit the sandwich detection scheme. The experimental results show that the 6 mm × 1 mm × 30 μm ME biosensor with an amplification protocol that uses magnetic nanoparticles has a limit of detection (LOD) lower than 1 nM, works well in water, and has a rapid response time of few minutes. Therefore, the ME biosensor is very promising for real-time wireless detection of pathogens in liquids and for real life diagnostic purpose.

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Magnetic Nanoparticles

Abstract: Magnetic nanoparticles are a class of nanoparticle that can be manipulated using magnetic fields [...]

Cited by 29 publications

References 18 publications

Effect of reaction condition on microstructure and properties of (NiCuZn)Fe2O4 nanoparticles synthesized via co-precipitation with ultrasonic irradiation

Effect of reaction condition on microstructure and properties of (NiCuZn)Fe2O4 nanoparticles synthesized via co-precipitation with ultrasonic irradiation

Microwave-Assisted Synthesis of Water-Dispersible Humate-Coated Magnetite Nanoparticles: Relation of Coating Process Parameters to the Properties of Nanoparticles

Core-Shell Magnetic Nanoparticles for Highly Sensitive Magnetoelastic Immunosensor

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