How are iron oxide nanoparticles synthesized?

How are iron oxide nanoparticles synthesized?

Iron oxide nanoparticles were synthesized by precipitation in isobutanol with sodium hydroxide and ammonium hydroxide. The isobutanol played a role of a surfactant in the synthesis. The nanoparticles were calcined for 100 min to 5 hours in the range of 300 to 600°C.

How do you dissolve iron oxide nanoparticles?

If you want to dissolve the NPs (ie destroy them) you can use a strong acid, but if you want to diperse them ie make them stable in a colloidal suspension in a medium such as water you will have to add a surfactant that is a molecule wich will change the surface properties of you nanoparticles.

How do you synthesize magnetic nanoparticles?

In this review, we have reported several popular methods including co-precipitation, microemulsion, thermal decomposition, solvothermal, sonochemical, microwave-assisted, chemical vapor deposition, combustion, carbon arc, and laser pyrolysis, for the synthesis of magnetic nanoparticles.

Why are iron oxides nanoparticles?

Iron oxide nanoparticles are used in cancer magnetic nanotherapy that is based on the magneto-spin effects in free-radical reactions and semiconductor material ability to generate oxygen radicals, furthermore, control oxidative stress in biological media under inhomogeneous electromagnetic radiation.

How do you synthesize iron oxide?

Iron oxides can be synthesized through the coprecipitation of Fe2+ and Fe3+ by the addition of a base. The size, shape, and composition of iron NPs synthesized through chemical methods depend on the type of salt used, Fe2+ and Fe3+ ratio, pH, and ionic strength.

How is iron oxide produced?

Iron(III) oxide is a product of the oxidation of iron. It can be prepared in the laboratory by electrolyzing a solution of sodium bicarbonate, an inert electrolyte, with an iron anode: 4 Fe + 3 O2 + 2 H2O → 4 FeO(OH) The resulting hydrated iron(III) oxide, written here as FeO(OH), dehydrates around 200 °C.

Does iron dissolve in alcohol?

Iron oxides are only very sparingly soluble in ethanol. To disperse your nanoparticles you need dispersants/stabilizers. Anionic surfactants and anionic polyelectrolytes like CMC should work.

Is Fe3O4 soluble in water?

Fe3O4 is practically insoluble in water (Merck index).

What is magnetite nanoparticle?

Magnetite (Fe3O4) nanoparticles have been investigated extensively due to their size-dependent intrinsic magnetic properties, as well as wide usage in the area of biomedical engineering. Magnetite-based nanosystems have been utilized efficiently to deliver many biologically active compounds.

What are polymeric nanoparticles?

Polymeric nanoparticles (NPs) are particles within the size range from 1 to 1000 nm and can be loaded with active compounds entrapped within or surface-adsorbed onto the polymeric core. Polymeric NPs have shown great potential for targeted delivery of drugs for the treatment of several diseases.

What is the name of Fe3O4?

Iron Oxide Black

PubChem CID 16211978
Molecular Formula Fe3O4
Synonyms Iron(II,III)oxide Iron Oxide Black 12227-89-3 oxoiron;oxo(oxoferriooxy)iron Fe3O4 More…
Molecular Weight 231.53
Component Compounds CID 518696 (Iron(III) oxide) CID 14945 (Ferrous oxide)

Is Fe3O4 toxic?

Conclusion: Based on the results obtained by us, Fe3O4 NP exposure, compared to the control, induced inflammatory response, the cytotoxic damage and respiratory toxicity. The results further show that Fe3O4 NP, 28 days after i.v. instillation, were eliminated from the respiratory tract by defense mechanisms.

How can nanomaterials be synthesized?

The simplest synthetic route to nanomaterials is probably self aggregation, in which ordered aggregates are formed in a spontaneous proc ess (Whitesides & Boncheva, 2002).

What is iron(III) oxide?

Iron(III) oxide or ferric oxide is the inorganic compound with the formula Fe2O3. It is of one of the three main oxides of iron, the other two being iron(II) oxide (FeO), which is rare, and iron(II,III) oxide (Fe3O4), which also occurs naturally as the mineral magnetite.

How is UV–Vis absorbance spectroscopy (UV–Vis) performed?

The UV–vis absorbance spectroscopy was performed using double beam spectrophotometer (CE Cecil 7200, UK). X-ray diffraction (XRD) analysis were recorded from 20° to 65° with a diffractometer (Bruker, German) using Cu Kα radiation with an accelerating voltage of 40 KV at scanning rate of 1°/min.