Synthesis of size-tuneable β-FeOOH nanoellipsoids and a study of their morphological and compositional changes by reduction

Kasparis, Georgios; Erdocio, Aritz Sterne; Tuffnell, Joshua M.; Thanh, Nguyễn Thị Kim

doi:10.1039/c8ce01778f

Cited by 25 publications

(29 citation statements)

References 33 publications

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“…Common ligands include surfactants such as oleylamine, dodecyldimethylammonium bromide, cetyltrimethylammonium bromide or chloride, octadecylamine and oleic acid [23,55,56]. Common polymers include polyethyleneimine (PEI), poly(ethylene glycol) (PEG), poly(vinylpyrrolidone) (PVP), poly(acrylic acid) (PAA) and poly(vinyl alcohol) (PVA) [23,55,57]. Small molecules containing halides, small polymers and solvents are also used for coordination of specific crystal planes [55,58].…”

Section: Synthesis Of Shape Anisotropic Nanoparticlesmentioning

confidence: 99%

Shape Anisotropic Iron Oxide-Based Magnetic Nanoparticles: Synthesis and Biomedical Applications

Andrade

Veloso

Castanheira

2020

IJMS

112

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Research on iron oxide-based magnetic nanoparticles and their clinical use has been, so far, mainly focused on the spherical shape. However, efforts have been made to develop synthetic routes that produce different anisotropic shapes not only in magnetite nanoparticles, but also in other ferrites, as their magnetic behavior and biological activity can be improved by controlling the shape. Ferrite nanoparticles show several properties that arise from finite-size and surface effects, like high magnetization and superparamagnetism, which make them interesting for use in nanomedicine. Herein, we show recent developments on the synthesis of anisotropic ferrite nanoparticles and the importance of shape-dependent properties for biomedical applications, such as magnetic drug delivery, magnetic hyperthermia and magnetic resonance imaging. A brief discussion on toxicity of iron oxide nanoparticles is also included.

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Section: Synthesis Of Shape Anisotropic Nanoparticlesmentioning

confidence: 99%

Shape Anisotropic Iron Oxide-Based Magnetic Nanoparticles: Synthesis and Biomedical Applications

Andrade

Veloso

Castanheira

2020

IJMS

112

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“… 41 One of the more successful solution-based strategies used to synthesize 1D structures of Fe 3 O 4 is the reduction of the iron oxy-hydroxide (FeOOH) polymorph. 17 , 18 , 42 , 43 However, a challenging aspect of this method is controlling the rod-shaped morphology of the final product due to aggregation and coalescence of the template. 17 , 44 Some reports have shown that when efforts were made to maintain the rod-shaped morphology, a mixture of iron oxides such as α-FeOOH, α-Fe 2 O 3 were formed along with Fe 3 O 4 .…”

Section: Introductionmentioning

confidence: 99%

“… 17 , 18 , 42 , 43 However, a challenging aspect of this method is controlling the rod-shaped morphology of the final product due to aggregation and coalescence of the template. 17 , 44 Some reports have shown that when efforts were made to maintain the rod-shaped morphology, a mixture of iron oxides such as α-FeOOH, α-Fe 2 O 3 were formed along with Fe 3 O 4 . 17 , 18 Therefore, it remains a challenge to synthesize 1D Fe 3 O 4 nanostructures with considerable control over shape, size, and phase purity using reduction reactions in solution.…”

Section: Introductionmentioning

confidence: 99%

“… 17 , 44 Some reports have shown that when efforts were made to maintain the rod-shaped morphology, a mixture of iron oxides such as α-FeOOH, α-Fe 2 O 3 were formed along with Fe 3 O 4 . 17 , 18 Therefore, it remains a challenge to synthesize 1D Fe 3 O 4 nanostructures with considerable control over shape, size, and phase purity using reduction reactions in solution. Toward this end, we decided to add to the current literature on using hydrazine as a reducing agent to generate Fe 3 O 4 nanorods utilizing different aspect ratios (ARs) of β-FeOOH nanoneedles.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis of Magnetite Nanorods from the Reduction of Iron Oxy-Hydroxide with Hydrazine

et al. 2020

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Nanowires and nanorods of magnetite (Fe 3 O 4 ) are of interest due to their varied biological applications but most importantly for their use as magnetic resonance imaging contrast agents. One-dimensional (1D) structures of magnetite, however, are more challenging to synthesize because the surface energy favors the formation of isotropic structures. Synthetic protocols can be dichotomous, producing either the 1D structure or the magnetite phase but not both. Here, superparamagnetic Fe 3 O 4 nanorods were prepared in solution by the reduction of iron oxy-hydroxide (β-FeOOH) nanoneedles with hydrazine (N 2 H 4 ). The amount of hydrazine and the reaction time affected the phase and morphology of the resulting iron oxide nanoparticles. One-dimensional nanostructures of Fe 3 O 4 could be produced consistently from various aspect ratios of β-FeOOH nanoneedles, although the length of the template was not retained. Fe 3 O 4 nanorods were characterized by transmission electron microscopy, X-ray powder diffraction, X-ray photoelectron spectroscopy, and SQUID magnetometry.

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“…Magnetite is one of the most attractive magnetic inorganic metal-oxides due to its biocompatibility, relatively high magnetic properties, and a wide range of synthetic procedures [91]. The main synthetic procedures include the co-precipitation [92,93], hydro-and solvothermal syntheses [94,95], reduction in template iron oxide with desired shape and size (for example, α-FeOOH, β-FeOOH, α-Fe 2 O 3 ) in wet (polyol reduction [96], hydrazine [97]) and dry reduction [98] (mixed atmosphere of Ar and H 2 ), and thermal decomposition of iron precursors [99].…”

Section: Metal-oxide Particlesmentioning

confidence: 99%

Nanoparticle-Based Approaches towards the Treatment of Atherosclerosis

et al. 2020

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Atherosclerosis, being an inflammation-associated disease, represents a considerable healthcare problem. Its origin remains poorly understood, and at the same time, it is associated with extensive morbidity and mortality worldwide due to myocardial infarctions and strokes. Unfortunately, drugs are unable to effectively prevent plaque formation. Systemic administration of pharmaceuticals for the inhibition of plaque destabilization bears the risk of adverse effects. At present, nanoscience and, in particular, nanomedicine has made significant progress in both imaging and treatment of atherosclerosis. In this review, we focus on recent advances in this area, discussing subjects such as nanocarriers-based drug targeting principles, approaches towards the treatment of atherosclerosis, utilization of theranostic agents, and future prospects of nanoformulated therapeutics against atherosclerosis and inflammatory diseases. The focus is placed on articles published since 2015 with additional attention to research completed in 2019–2020.

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Synthesis of size-tuneable β-FeOOH nanoellipsoids and a study of their morphological and compositional changes by reduction

Abstract: Synthesis of finely size-tuned β-FeOOH nanoellipsoids which could be used as precursors to form anisotropic iron oxide nanoparticles by reduction.

Cited by 25 publications

References 33 publications

Shape Anisotropic Iron Oxide-Based Magnetic Nanoparticles: Synthesis and Biomedical Applications

Shape Anisotropic Iron Oxide-Based Magnetic Nanoparticles: Synthesis and Biomedical Applications

Synthesis of Magnetite Nanorods from the Reduction of Iron Oxy-Hydroxide with Hydrazine

Nanoparticle-Based Approaches towards the Treatment of Atherosclerosis

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