Magnetic Nanoparticles

Neodymium Iron Boron Nanoparticles: Magnetic nanoparticle materials offers major advantages due to their unique size and physicochemical properties and used in widespread applications of magnetic nanoparticles in biotechnology, biomedical, material science, engineering, and environmental areas.One of the important property on nanoscale is supermagnetism which can lead to particles with much higher magnet susceptibilities than in traditional paramagnets.

Neodymium Iron Boron Nanoparticles: Most commonly used nanomagnets are ferrites including both binary and complex oxides of iron.Magnetic nanoparticles can be easily functionalized through the attachment of organic or biological molecules to the particles surface which can increase the selectively and bonding strength of the particle and target.

Neodymium Iron Boron Nanoparticles: Industrial applications of magnetic nanoparticles cover a broad spectrum of magnetic recording media and biomedical applications, for example, magnetic resonance contrast media and therapeutic agents in cancer treatment. In data storage applications, the particles need to have a stable, switchable magnetic state to represent bits of information that are not affected by temperature fluctuations.

Neodymium Iron Boron Nanoparticles: Magnetic effects are caused by movements of particles that have both mass and electric charges. These particles are electrons, holes, protons, and positive and negative ions. A spinning electric-charged particle creates a magnetic dipole, so-called magneton. In ferromagnetic materials, magnetons are associated in groups. A magnetic domain refers to a volume of ferromagnetic material in which all magnetons are aligned in the same direction by the exchange forces. This concept of domains distinguishes ferromagnetism from paramagnetism.

Neodymium Iron Boron Nanoparticles: Magnetic nanoparticles show remarkable new phenomena such as high field irreversibility, high saturation field, superparamagnetism, extra anisotropy contributions, or shifted loops after field cooling. These phenomena arise from narrow and finite-size effects and surface effects that dominate the magnetic behavior of individual nanoparticles. A particle of ferromagnetic material, below a critical particle size (< 15 nm for the common materials), would consist of a single magnetic domain, i.e., a particle that is in a state of uniform magnetization at any field.