Hydrophobic and Hydrophilic Magnetite Nanoparticles: Synthesis by Chemical Coprecipitation and Physico-Chemical Characterization

Socoliuc, V.; Vékás, L.

doi:10.1007/978-3-662-43899-2_3

Cited by 10 publications

(11 citation statements)

References 35 publications

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“…Using the synthesis procedure of carboxylic (lauric, myristic or oleic) acid stabilized aqueous ferrofluids [49,104], bovine serum albumin (BSA) coating was applied to rise the colloidal stability of lauric acid-coated IONPs in biological media [105]. The coating greatly reduced the toxicity of nanoparticles and enhanced therapeutic potential of mitoxantrone drug-loaded system.…”

Section: Surface Coating Of Magnetic Coresmentioning

confidence: 99%

Magnetic Nanoparticle Systems for Nanomedicine—A Materials Science Perspective

et al. 2020

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Iron oxide nanoparticles are the basic components of the most promising magneto-responsive systems for nanomedicine, ranging from drug delivery and imaging to hyperthermia cancer treatment, as well as to rapid point-of-care diagnostic systems with magnetic nanoparticles. Advanced synthesis procedures of single- and multi-core iron-oxide nanoparticles with high magnetic moment and well-defined size and shape, being designed to simultaneously fulfill multiple biomedical functionalities, have been thoroughly evaluated. The review summarizes recent results in manufacturing novel magnetic nanoparticle systems, as well as the use of proper characterization methods that are relevant to the magneto-responsive nature, size range, surface chemistry, structuring behavior, and exploitation conditions of magnetic nanosystems. These refer to particle size, size distribution and aggregation characteristics, zeta potential/surface charge, surface coating, functionalization and catalytic activity, morphology (shape, surface area, surface topology, crystallinity), solubility and stability (e.g., solubility in biological fluids, stability on storage), as well as to DC and AC magnetic properties, particle agglomerates formation, and flow behavior under applied magnetic field (magnetorheology).

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Section: Surface Coating Of Magnetic Coresmentioning

confidence: 99%

Magnetic Nanoparticle Systems for Nanomedicine—A Materials Science Perspective

et al. 2020

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“…In fact, for energetic reasons, the attachment of the particles at the fluid interface is essentially an irreversible process. Moreover, the strongly magnetoresponsive character of Fe 3 O 4 accounts for its high adsorption energy (Socoliuc and Vékás 2014).…”

Section: Interfacial Tension (Ift)mentioning

confidence: 99%

Interactions of ferro-nanoparticles (hematite and magnetite) with reservoir sandstone: implications for surface adsorption and interfacial tension reduction

2020

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There are a few studies on the use of ferro-nanofluids for enhanced oil recovery, despite their magnetic properties; hence, it is needed to study the adsorption of iron oxide (Fe 2 O 3 and Fe 3 O 4) nanoparticles (NPs) on rock surfaces. This is important as the colloidal transport of NPs through the reservoir is subject to particle adsorption on the rock surface. Molecular dynamics simulation was used to determine the interfacial energy (strength) and adsorption of Fe 2 O 3 and Fe 3 O 4 nanofluids infused in reservoir sandstones. Fourier transform infrared spectroscopy and X-ray photon spectroscopy (XPS) were used to monitor interaction of silicate species with Fe 2 O 3 and Fe 3 O 4. The spectral changes show the variation of dominating silicate anions in the solution. Also, the XPS peaks for Si, C and Fe at 190, 285 and 700 eV, respectively, are less distinct in the spectra of sandstone aged in the Fe 3 O 4 nanofluid, suggesting the intense adsorption of the Fe 3 O 4 with the crude oil. The measured IFT for brine/oil, Fe 2 O 3 /oil and Fe 3 O 4 /oil are 40, 36.17 and 31 mN/m, respectively. Fe 3 O 4 infused with reservoir sandstone exhibits a higher silicate sorption capacity than Fe 2 O 3 , due to their larger number of active surface sites and saturation magnetization, which accounts for the effectiveness of Fe 3 O 4 in reducing IFT.

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“…The most often used coating agents are fatty acids, especially the oleic acid. The product of coprecipitation optimally at 80-82 o C is magnetite, mostly single core with diameter 5-8 nm and having hydrophobic (chemisorbed oleate monolayer) or hydrophilic (due to a physisorbed secondary oleic acid layer) coating, the particles being dispersible in nonpolar solvents or water, respectively [26,64,74]. Beside efficient stabilization of MNPs in organic non-…”

Section: Single-and Multicore Iron Oxide Npsmentioning

confidence: 99%

“…reductive conditions [64]. The colloidal stability of precipitating systems is determined by electrostatic and steric factors [65].…”

Section: Single-and Multicore Iron Oxide Npsmentioning

confidence: 99%

Magnetic iron oxide nanoparticles: Recent trends in design and synthesis of magnetoresponsive nanosystems

Tombácz

Turcu

Socoliuc

et al. 2015

Biochemical and Biophysical Research Communications

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142

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Hydrophobic and Hydrophilic Magnetite Nanoparticles: Synthesis by Chemical Coprecipitation and Physico-Chemical Characterization

Cited by 10 publications

References 35 publications

Magnetic Nanoparticle Systems for Nanomedicine—A Materials Science Perspective

Magnetic Nanoparticle Systems for Nanomedicine—A Materials Science Perspective

Interactions of ferro-nanoparticles (hematite and magnetite) with reservoir sandstone: implications for surface adsorption and interfacial tension reduction

Magnetic iron oxide nanoparticles: Recent trends in design and synthesis of magnetoresponsive nanosystems

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