Structural characterization and magnetic properties of superparamagnetic zinc ferrite nanoparticles synthesized by the coprecipitation method

Shahraki, R. Raeisi; Ebrahimi, Mostafa; Ebrahimi, S.A. Seyyed; Masoudpanah, S.M.

doi:10.1016/j.jmmm.2012.06.020

Cited by 144 publications

(27 citation statements)

References 21 publications

(24 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The water colloidal stability of nanostructures of various shapes and sizes constitutes the most important challenge to achieve useful systems for biomedical and industry applications. Preparation of colloidal stable dispersion is usually performed in two stages: Formation of nanoparticles, e.g., zinc ferrite ZnFe 2 O 4 , by means of e.g., micro-emulsion [23], co-precipitation method [24,25], milling [26], sol-gel method [27], hydrothermal [28], solvothermal [29], spray pyrolysis [30] or thermal decomposition method [31],Further stabilisation/dispersion of nanoparticles in various non-polar or polar fluids [32,33]. …”

Section: Introductionmentioning

confidence: 99%

One-Step Synthesis of Long Term Stable Superparamagnetic Colloid of Zinc Ferrite Nanorods in Water

et al. 2019

View full text Add to dashboard Cite

Synthesis of spinel zinc ferrite ultrafine needle-like particles that exhibit exceptional stability in aqueous dispersion (without any surfactants) and superparamagnetic response is reported. Comprehensive structural and magnetic characterization of the particles is performed using X-ray and electron diffraction, small angle X-ray scattering, transmission electron microscopy, dynamic light scattering, vibrating sample magnetometry, Mössbauer spectroscopy and high-resolution X-ray spectroscopy. It reveals nearly stoichiometric ZnFe2O4 nanorods with mixed spinel structure and unimodal size distribution of mean length of 20 nm and diameter of 5 nm. Measurements performed in aqueous and dried form shows that particles’ properties are significantly changed as a result of drying.

show abstract

Section: Introductionmentioning

confidence: 99%

One-Step Synthesis of Long Term Stable Superparamagnetic Colloid of Zinc Ferrite Nanorods in Water

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Spinel ferrites are good candidates for these purposes. Specifically, zinc ferrite (ZnFe2O4) NPs, or zinc doped magnetite (ZnxFe3-xO4 (0 < x <1)) NPs, stand out against the rest of ferrites due to their favourable chemical and thermal stability (Raeisi-Shahraki et al, 2012) and their reduced toxicity (Wan et al, 2012). Since Fe and Zn are involved in a large number of biological processes, it is predicted that they can be safely incorporated in the labile pools of both elements (Kruszewski and Iwaneńko, 2003;Thambiayya et al, 2012).…”

mentioning

confidence: 99%

Toxicity and biodegradation of zinc ferrite nanoparticles in Xenopus laevis

et al. 2019

View full text Add to dashboard Cite

Zn-doped Fe3O4 magnetic nanoparticles have been proposed as the ideal ferrite for some biomedical applications like magnetic hyperthermia or photothermal therapy because of the possibility to adjust their size and chemical composition in order to design tailored treatments. However, reliable approaches are needed to risk assess Zn ferrite nanoparticles before clinical development. In this work, the in vitro toxicity of the nanoparticles was evaluated in five cellular models (Caco-2, HepG2, MDCK, Calu-3 and Raw 264.7) representing different target organs/systems (gastrointestinal system, liver, kidney, respiratory system and immune system). For the first time, these nanoparticles were evaluated in an in vivo Xenopus laevis model to study whole organism toxicity and their impact on iron and zinc metabolic pathways. Short and long-term in vivo exposure studies provided insights into the contrasting adverse effects between acute and chronic exposure. Quantitative PCR combined with elemental analysis and AC magnetic susceptibility measurements revealed that at short-term exposure (72 h) the nanoparticles' absorption process is predominant, with the consequent over-expression of metal transporters and metal response proteins. At long-term exposure (120 h), there is an up-regulation of 2 metal accumulation involved genes and the return to basal levels of both iron and zinc transporters, involved in the uptake of metals. This suggests that at this stage the nanoparticles' absorption process is residual compared with the following steps in metabolism, distribution and/or excretion processes, indicated by the increase of iron accumulation proteins at both transcriptional and translational level. This testing approach based on a battery of cellular systems and the use of the Xenopus laevis model could be a viable strategy for studying the toxicity, degradability and ultimately the long-term fate of zinc ferrites in the organism.

show abstract

“…Magnesium ferrite is superparamagnetic but may contain a very small fraction of larger nanoparticles generating a small hysteresis at low magnetic field intensity. Zinc ferrite is paramagnetic, as in most cases reported in the literature (Figure ).…”

Section: Resultsmentioning

confidence: 82%

Synthesis and adsorption properties of nanocrystalline ferrites for kinetic modeling development

Roman

Asavei

Karkalos

et al. 2018

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

Nanocrystalline ferrites are known to be used in different applications, including industrial wastewater management. For environmental water issues, one of the most widely applied techniques is the adsorption of pollutants. The adsorption capacity of Congo red (CR) dye on different MFe 2 O 4 (M = Co 2+ , Mg 2+ , Mn 2+ , Ni 2+ , and Zn 2+ ) ferrites, synthesized by coprecipitation method, was determined. Specific isotherms and kinetic models were used to characterize the adsorption process. Interesting results were obtained for MgFe 2 O 4 with adsorption capacity ranging from 39% up to 70% dependent on the initial dye concentration. Furthermore, an artificial intelligence model based on neural network was developed in order to model the adsorption rates followed by the generation of 3D adsorption rate models for each type of synthesized ferrite. These models were obtained in order to provide information about the particle-dye system`s kinetics at various initial CR concentration. Specific techniques were used to characterize the functionalized magnetic particles. K E Y W O R D S3D adsorption rate models, adsorption kinetics, artificial neural network modeling, ferrites synthesis

show abstract

Structural characterization and magnetic properties of superparamagnetic zinc ferrite nanoparticles synthesized by the coprecipitation method

Cited by 144 publications

References 21 publications

One-Step Synthesis of Long Term Stable Superparamagnetic Colloid of Zinc Ferrite Nanorods in Water

One-Step Synthesis of Long Term Stable Superparamagnetic Colloid of Zinc Ferrite Nanorods in Water

Toxicity and biodegradation of zinc ferrite nanoparticles in Xenopus laevis

Synthesis and adsorption properties of nanocrystalline ferrites for kinetic modeling development

Contact Info

Product

Resources

About