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Cobalt ferrite

Cobalt ferrite is a magnetic material with a spinel structure, composed of cobalt and iron oxides.
It exhibits strong ferromagnetic properties, making it useful for various applications such as data storage, magnetic sensors, and microwave devices.
Cobalt ferrite's unique characteristics, including high coercivity, saturation magnetization, and Curie temperature, have attracted significant research interest.
Leveraging PubCompare.ai, researchers can optimise their cobalt ferrite studies by accessing a comprehensive database of protocols from literature, preprints, and patents, and identifying the most reproducible and accurate methods to enhance the quality and reliability of their results.

Most cited protocols related to «Cobalt ferrite»

1
Characterization of Silica-Coated Magnetic Nanoparticles
Cited 4 times
MNPs@SiO2(RITC) particles contain a cobalt ferrite core (CoFe2O3) sheathed by a silica shell that is chemically bonded to rhodamine isothiocyanate dye (RITC)49 (link). Silica NPs are identical to MNPs@SiO2(RITC) except that they lack a cobalt ferrite core and show similar tendencies with respect to their biological effects12 (link)50 (link). MNPs@SiO2(RITC) and silica NPs are 50 nm in diameter, and the size distribution and zeta-potential of both NPs have been previously reported49 (link)50 (link). A previous study indicated that approximately 105 particles of MNPs@SiO2(RITC) per cell were taken up in MCF-7 breast cancer cells as determined by inductively coupled plasma atomic emission spectrometry (ICP-AES)49 (link). The dosage used in this study was determined by treating HEK293 cells with MNPs@SiO2(RITC) at concentrations ranging from 0.01 to 2.0 μg/μl for 12 h and calculating their uptake efficiencies using a fluorescent assessment method12 (link). The optimal concentration of MNPs@SiO2(RITC) was 0.1 μg/μl for in vitro use and as MRI contrast without toxicological effects in human cord blood-derived mesenchymal stem cells3 (link). Disturbances of gene expression and metabolic profiles at this concentration were similar to those in control HEK293 cells12 (link). The uptake efficiency of MNPs@SiO2(RITC) plateaued at 1.0 μg/μl. Therefore, a low dose of 0.1 μg/μl and high dose of 1.0 μg/μl were used in the present study.
Phukan G., Shin T.H., Shim J.S., Paik M.J., Lee J.K., Choi S., Kim Y.M., Kang S.H., Kim H.S., Kang Y., Lee S.H., Mouradian M.M, & Lee G. (2016). Silica-coated magnetic nanoparticles impair proteasome activity and increase the formation of cytoplasmic inclusion bodies in vitro. Scientific Reports, 6, 29095.
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Publication 2016
Biopharmaceuticals Breast Carcinoma Cells cobalt ferrite Gene Expression HEK293 Cells Homo sapiens MCF-7 Cells Mesenchyma Metabolic Profile Plasma rhodamine isothiocyanate Silicon Dioxide Spectrometry Stem, Plant Umbilical Cord Blood
2
Synthesis of Cobalt-Manganese Doped Iron Oxide Nanoparticles
Cited 3 times
Iron oxide nanoparticles doped with cobalt and manganese (CoMn-IONP) were synthesized by a modified thermal decomposition method.28 (link),62 (link),63 (link) First, cobalt (II) chloride hexahydrate (CoCl2·6H2O, 3.25 mmol) and iron (III) acetylacetone (Fe(acac)3, 5.00 mmol) were added to a solution containing oleic acid (2.0 mL), oleylamine (2.0 mL) and trioctyl ether (20 mL). The obtained reaction mixture was placed in a 250 mL three-neck round-bottom flask and heated at 300 °C under nitrogen flow and vigorous stirring. After 1 h, the mixture was cooled to room temperature and the product was precipitated with ethanol (30 mL), followed by centrifugation at 7000 rpm for 30 min. The obtained precipitate was re-dispersed in hexane (10 mL), and the purification process was repeated three times to produce black cobalt ferrite (CoFe2O4) nanoparticles. In the next step, manganese chloride (MnCl2·4H2O, 3.25 mmol) and Fe(acac)3 (5.00 mmol) were placed in a 250 mL three-neck round-bottom flask containing oleic acid (2.0 mL), oleylamine (2.0 mL) and trioctyl ether (20 mL). After addition of freshly made CoFe2O4 nanoparticles suspended in 10 mL of hexane (8 mg/mL), the reaction mixture was heated at 360 °C for 1 h under stirring and nitrogen flow. Subsequently, the resulting reaction mixture was cooled to room temperature, ethanol (30 mL) was added, followed by centrifugation at 7000 rpm for 30 min, and the obtained precipitate was re-dispersed in hexane (10 mL). The purification procedure was repeated three times. The obtained CoMn-IONP were dried at 70 °C for 12 h.
Albarqi H.A., Wong L.H., Schumann C., Sabei F.Y., Korzun T., Li X., Hansen M.N., Dhagat P., Moses A.S., Taratula O, & Taratula O. (2019). Biocompatible Nanoclusters with High Heating Efficiency for Systemically Delivered Magnetic Hyperthermia. ACS nano, 13(6), 6383-6395.
Publication 2019
acetylacetone Centrifugation Chlorides Cobalt cobalt ferrite Ethanol Ethyl Ether Iron Iron Oxide Nanoparticles Manganese manganese chloride n-hexane Neck Nitrogen Oleic Acid oleylamine
3
MRI Characterization of Nanoparticle Suspensions
Cited 3 times

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Publication 2016
Agar Bath Cells ECHO protocol ferumoxtran-10 Gels Gills Iron Phosphates Saline Solution
4
Synthesis of Fluorescent Core-Shell Nanoparticles
Cited 2 times
Core-shell nanoparticles, with cobalt-ferrite magnetic cores were prepared as previously described.(11 ) The synthetic dye, (trimethoxysilylpropyl) rhodamine B, was used for the incorporation of fluorescent dyes into the silica shell.
Ha S.W., Camalier C.E., Weitzmann M.N., Beck GR J.r, & Lee J.K. (2013). LONG-TERM MONITORING OF THE PHYSICOCHEMICAL PROPERTIES OF SILICA-BASED NANOPARTICLES ON THE RATE OF ENDOCYTOSIS AND EXOCYTOSIS AND CONSEQUENCES OF CELL DIVISION. Soft materials, 11(2), 195-203.
Publication 2013
cobalt ferrite Fluorescent Dyes rhodamine B Silicon Dioxide
5
Synthesis of Core-Shell CoFe2O4 Nanoparticles
Cited 2 times
Three samples of CoFe2O4 NPs of different sizes, labelled as CoA, CoB, and CoC, were prepared by the solvothermal hydrolysis of mixed cobalt-iron oleates in a mixture of organic solvents with different polarities and water contents. The samples were used as seeds to produce core–shell nanostructures using a second solvothermal treatment (seed-mediated growth), with a shell of spinel iron oxide (maghemite/magnetite) and manganese ferrite, indicated as Cox@Fe and Cox@Mn (where x = A, B, C), respectively.43 (link) The samples CoA, CoA@Fe, CoA@Mn, CoC, CoC@Fe, and CoC@Mn correspond to the samples Co1, Co1@Fe, Co1@Mn, Co2, Co2@Fe, and Co2@Mn, respectively, described in previous work.43 (link) The experimental synthesis conditions for the samples CoB, CoB@Fe, and CoB@Mn are reported in the section “Experimental conditions” of the ESI (Tables 8S–10S†).
Sanna Angotzi M., Mameli V., Cara C., Musinu A., Sangregorio C., Niznansky D., Xin H.L., Vejpravova J, & Cannas C. (2020). Coupled hard–soft spinel ferrite-based core–shell nanoarchitectures: magnetic properties and heating abilities. Nanoscale Advances, 2(8), 3191-3201.
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Publication 2020
Anabolism Cobalt cobalt ferrite ferric oxide gamma-ferric oxide Hydrolysis Iron Magnetite manganese ferrite Oleate Solvents spinell

Most recents protocols related to «Cobalt ferrite»

1
Synthesis of Magnetic Cobalt Ferrite Sorbents
Magnetic cobalt ferrite sorbents (CoFe2O4) were synthesized following the procedure described by Tavares et al. (2020 (link)) based on the oxidative hydrolysis of iron(II) sulfate followed by co-precipitation of Co(II) and Fe(III) ions in alkaline conditions. Ultra-pure water was first deoxygenated with N2 under vigorous stirring for 2 h. Then, 1.90 g (34 mmol) of KOH and 1.52 g (15 mmol) of KNO3 were added to 25 mL of deoxygenated water using a 250-mL round flask. This mixture was heated at 60 °C, under N2 and mechanically stirred at 500 rpm. After total dissolution, 10 mL of aqueous CoCl2.6H2O (6 mmol) and 15 mL of aqueous FeSO4.7H2O (11 mmol) were both added dropwise, and mechanical stirring was then set at 700 rpm. The resulting reacting mixture presented a dark-green color after complete addition of the Co(II) and Fe(II) aqueous solutions and the reaction proceeded over 30 min, after which the reaction vessel was placed in an oil bath at 90 °C, under N2 but without stirring, for 4 h. The resulting black powder was magnetically collected and thoroughly washed with deoxygenated water and ethanol. Finally, the particles were collected and dried in an oven at 40 °C.
Almeida J.C., Cardoso C.E., Tavares D.S., Trindade T., Vale C., Freitas R, & Pereira E. (2024). Removal of chromium(III) from contaminated waters using cobalt ferrite: how safe is remediated water to aquatic wildlife?. Environmental Science and Pollution Research International, 31(19), 28789-28802.
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Publication 2024
2
Hydrothermal Cobalt Ferrite Nanoparticle Synthesis
Cobalt ferrite nanoparticles
were successfully synthesized by a hydrothermal method. A precursor
solution was prepared by dissolving FeCl3·6H2O (13.51 g, 2 mol) and CoCl2·6H2O (5.94
g, 1 mol) separately in 30 mL of distilled water. The two solutions
were then combined under continuous stirring, and glycerol (0.078
M) was slowly introduced. The pH of the resulting solution was carefully
maintained at ∼12.0 through the controlled addition of dilute
sodium hydroxide. Following the formation of a brown precipitate,
the entire mixture was further stirred for 30 min before being transferred
to a Teflon-lined autoclave. The autoclave was sealed and subjected
to hydrothermal treatment in an oven set at 180 °C for a duration
of 6 h. After the mixture cooled, the black precipitate was separated
through centrifugation, subjected to multiple washes with distilled
water to eliminate chloride ions, and subsequently dried at 80 °C
overnight. The resulting dried materials were securely stored in airtight
containers for future utilization.
Mohanty C., Samal A., Behera A.K, & Das N. (2024). Poly Meta-Aminophenol (PmAP) as a Solid-State Electron Mediator in the Z-Scheme, Ag3PO4/CoFe2O4 Heterojunction: Mineralization of Highly Concentrated Bisphenol-A and Reactive Dyes Water Pollutants. ACS Omega, 9(18), 19968-19981.
Publication 2024
3
Synthesis of Polymer-Ferrite Composite Materials

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Publication 2024
4
Synthesis of Spinel Ferrite Nanoparticles

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Publication 2024
5
Synthesis of Cobalt-Doped Iron Oxide Nanoparticles
GO (0.5 g) was dispersed in H2O (150 mL) following 1.5 h of sonication while stirring. Next, Fe(NO3)3 (6.875 g) and Co(NO3)2 (2.475 g) were introduced, and the mixture’s pH was adjusted to 10. The reaction solution was moved to an autoclave and subjected to heating at 180 °C. After an 18 h reaction, it was cooled to room temperature. Then a water wash was performed with magnetic separation. Finally, the drying process was carried out.
Lv Y., Gong C., Dong Y, & Choi H.J. (2024). Synthesis of rGO/CoFe2O4 Composite and Its Magnetorheological Characteristics. Materials, 17(8), 1859.
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Publication 2024

Top products related to «Cobalt ferrite»

1
Iron 3 nitrate nonahydrate by Merck Group
Sourced in United States, Germany, United Kingdom
Iron(III) nitrate nonahydrate is a chemical compound with the formula Fe(NO3)3·9H2O. It is a crystalline solid that is commonly used as a laboratory reagent and in various industrial applications. The compound consists of iron(III) ions and nitrate ions, along with nine water molecules. It is soluble in water and is typically used in chemical synthesis, analysis, and other research applications that require a source of iron(III) ions.
2
Oleic acid by Merck Group
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Oleic acid is a long-chain monounsaturated fatty acid commonly used in various laboratory applications. It is a colorless to light-yellow liquid with a characteristic odor. Oleic acid is widely utilized as a component in various laboratory reagents and formulations, often serving as a surfactant or emulsifier.
3
Sodium hydroxide (naoh) by Merck Group
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Sodium hydroxide is a chemical compound with the formula NaOH. It is a white, odorless, crystalline solid that is highly soluble in water and is a strong base. It is commonly used in various laboratory applications as a reagent.
4
Ultima 3 by Rigaku
Sourced in Japan, United States
The Rigaku Ultima III is an X-ray diffractometer designed for versatile and high-performance powder and thin film analysis. It features a stable and precise goniometer, advanced X-ray optics, and a high-efficiency detector to provide reliable and accurate data.
5
Cobalt 2 nitrate hexahydrate by Merck Group
Sourced in Germany, United States
Cobalt(II) nitrate hexahydrate is an inorganic chemical compound with the molecular formula Co(NO3)2·6H2O. It is a crystalline solid that is soluble in water and other polar solvents. The compound is used as a precursor for the synthesis of other cobalt-containing compounds and in various laboratory applications.
6
D8 advance by Bruker
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The D8 Advance is a versatile X-ray diffractometer (XRD) designed for phase identification, quantitative analysis, and structural characterization of a wide range of materials. It features advanced optics and a high-performance detector to provide accurate and reliable results.
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Bovine serum albumin (bsa) by Merck Group
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Bovine serum albumin (BSA) is a common laboratory reagent derived from bovine blood plasma. It is a protein that serves as a stabilizer and blocking agent in various biochemical and immunological applications. BSA is widely used to maintain the activity and solubility of enzymes, proteins, and other biomolecules in experimental settings.
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Uip1000hdt by Hielscher
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9
Ethanol by Merck Group
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Ethanol is a clear, colorless liquid chemical compound commonly used in laboratory settings. It is a key component in various scientific applications, serving as a solvent, disinfectant, and fuel source. Ethanol has a molecular formula of C2H6O and a range of industrial and research uses.
10
Absolute ethanol by Merck Group
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Absolute ethanol is a pure, anhydrous form of ethanol. It is a clear, colorless, volatile liquid with a characteristic odor. Absolute ethanol is used as a solvent, disinfectant, and as a raw material in various chemical and pharmaceutical applications.

More about "Cobalt ferrite"

Cobalt ferrite (CoFe2O4) is a spinel-structured magnetic material composed of cobalt and iron oxides.
It exhibits strong ferromagnetic properties, making it a valuable material for a variety of applications, including data storage, magnetic sensing, and microwave devices.
This inorganic compound is known for its high coercivity, saturation magnetization, and Curie temperature, which have attracted significant research interest.
Researchers can optimize their cobalt ferrite studies by utilizing PubCompare.ai, an AI-powered platform that provides access to a comprehensive database of protocols from literature, preprints, and patents.
This tool enables researchers to identify the most reproducible and accurate methods, enhancing the quality and reliability of their results.
Cobalt ferrite's unique characteristics are derived from its chemical composition and crystal structure.
The material is typically synthesized using precursors such as iron(III) nitrate nonahydrate, cobalt(II) nitrate hexahydrate, and reducing agents like oleic acid and sodium hydroxide.
The synthesis process may involve techniques like hydrothermal, sol-gel, or co-precipitation methods, which can influence the final properties of the material.
Characterization of cobalt ferrite often involves the use of analytical techniques like X-ray diffraction (e.g., D8 Advance) to study the crystal structure, scanning electron microscopy (SEM) to examine the morphology, and magnetometry (e.g., Ultima III) to measure the magnetic properties.
Additionally, surface modification and functionalization, such as with bovine serum albumin (BSA) or ethanol, can be employed to tailor the material's performance for specific applications.
By leveraging the insights and tools provided by PubCompare.ai, researchers can optimize their cobalt ferrite studies, leading to more reproducible and reliable results that advance the understanding and utilization of this versatile magnetic material.
The platform's AI-driven comparisons and protocol database can be a valuable resource for researchers in the fields of materials science, nanotechnology, and magnetism.