How do you synthesize magnetite nanoparticles?
Magnetite nanoparticles were synthesized via the chemical co-precipitation method using ammonium hydroxide as the precipitating agent. The size of the magnetite nanoparticles was carefully controlled by varying the reaction temperature and through the surface modification.
How do you synthesize magnetite?
If you want to synthesize magnetite you can use co-precipitation method: mix Fe3+ and Fe2+ precursors with molar ratio of 2:1 in the DI water. Then add ammonia solution (or KOH, NaOH, or any other basic salt) until the pH increase to 10. Then the black magnetite is ready.
How do you synthesize Fe3O4?
Fe3O4 magnetic nanoparticles (MNPs) were synthesized by a co-precipitation method using sodium citrate and oleic acid as modifiers. Phase composition and microstructure analysis indicate that the sodium citrate and oleic acid have been successfully grafted onto the surface of Fe3O4 MNPs.
What are magnetite nanoparticles used for?
Magnetic nanoparticles can be used for the detection of cancer. Blood can be inserted onto a microfluidic chip with magnetic nanoparticles in it. These magnetic nanoparticles are trapped inside due to an externally applied magnetic field as the blood is free to flow through.
Is magnetite a 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. In recent years, several methods to synthesize and functionalize magnetic nanoparticles for biomedical use have been developed.
What is the principal method for identifying magnetite?
2 and 10.4. 3.3. 3. Black magnetite, with a specific gravity greater than 5, is easily detected and separated from sediments and tissues by its magnetic properties, and the identification can be confirmed by x-ray diffraction.
What are the nanoparticles composed of and how are they created?
Nanoparticles are created from the gas phase by producing a vapor of the product material using chemical or physical means. The production of the initial nanoparticles, which can be in a liquid or solid state, takes place via homogeneous nucleation.
How are magnetite nanorods synthesized?
The magnetite nanorods have been synthesized by hydrolysis of Fe 2+ and Fe 3+ solution in the presence of urea at 90 °C for 12 h. Fig. 1 is the XRD pattern of the sample, which is quite identical to pure magnetite and matched well that of it (JCPDS No. 82-1533), indicating that the sample has a cubic crystal system.
What are the values of saturation magnetization and coercion of magnetite nanorods?
The values of saturation magnetization (M) and coercivity (H) of magnetite nanorods are 67.55 emu/g and 114 Oe, respectively. The samples were also characterized by X-ray powder diffraction (XRD) and electron diffraction (ED). At last, the forming mechanism of both the magnetite and porous hematite nanorods was discussed. 1. Introduction
How are gold nanoparticles (GNRs) synthesized?
In synthesizing GNRs with seed-mediated method, there are two stages: the synthesis of the gold nanoparticles (GNPs) seeds is the first step, and the development of these seeds into nanorods is the second step.
Can nanorods be used to treat cancer?
Nanorods spontaneous self-assembly, polymer-based alignment and its applications as a novel agent for simultaneous bioimaging and photothermal cancer therapy are listed in particular. Cancer is the second largest cause of mortality, after heart disease.