_ Section of the simulation process in (electrical nanoparticles)

Electromagnetic nanoparticles (electrical particles less than one hundred nanometers)

Researcher  and author: Dr.   (   Afshin Rashid)

Note:  Surface coating is an inseparable component of electromagnetic nanoparticles so that they can be  used. Although nanoparticles  are not attracted to each other due to their super paramagnetic properties,  but due to the high energy of the surfaces, electromagnetic nanoparticles tend to accumulate  . 

Metal alloys or bimetallic nanoparticles have a high superparamagnetic property  , which makes them suitable for  electromagnetic nanomolecules or electromagnetic nanocarriers  . In addition to this, the electromagnetic property  of the surface of these nanoparticles allows surface active substances to  be placed  on the surface of the nanoparticles,  which can be used to dissolve the nanoparticles  . The electrostatic stability of nanomolecules  is not suitable for nanoparticles; Although the repulsion of charges on  the surface of nanoparticles can prevent their accumulation,  but in the presence of a catalyst or other electrolytes in the  internal environment of electromagnetic nanoparticles, these charges are neutralized.

Electromagnetic (Active) properties in  the coating of nanoparticles, like a barrier,  prevent their accumulation, and chemical functionalization  creates appropriate and efficient properties for nanoparticles  .  Molecular weight and geometrical orientation exist on the surface of nanoparticles in various forms. Layers that make electromagnetic nanoparticles fully active. It prevents nanoparticles from accumulating on each other. In addition to organic coatings, the core-shell structure  is also used  for optimal application of electromagnetic nanoparticles  . Engineering the structure of magnetic nanoparticles is the functionalization of the particle surfaces, which can have several agents or several (ligands). Uncoated and coated nanoparticles can  absorb (bimetallic) nanoparticles with a variety of electromagnetic molecules and create an active process.

 

 

Electromagnetic nanoparticles are particles less than one hundred nanometers that have magnetic properties in the presence of an external magnetic field. The simplest structure of nanoparticles consists of a magnetic core (such as iron oxide, nickel and cobalt) and various non-magnetic coatings of chemical compounds  in nano-electromagnetic materials, the molecules and atoms that make them  have magnetic properties. In simpler terms, elements such as  iron, cobalt, nickel and their alloys that  are attracted by magnets are called nanomagnetic materials.

 

Conclusion: 

The classification of  nano-magnetic materials is based on the receptivity of nano-magnetic particles (magnetization ability of nano-material particles). Based on this,  the materials are classified into three groups: nanoferromagnetism, nanoparamagnetism, and  nanodiamagnetism . The process of dipole (bimetallic) and polymetallic moments  in nanoparticles of active nanodiamagnetic materials (electromagnetic nanoparticles ) is zero and in the presence of Magnetic field,  bipolar moment (bimetallic) is induced in them; But the direction of these induced bipolars  is opposite to the direction of the external magnetic field.

Researcher  and author: Dr.   (   Afshin Rashid)

Specialized doctorate in nano-microelectronics