Structure and function of active nanoparticles (Active Nano particle) PhD in nano-microelectronics
Researcher and author: Dr. ( Afshin Rashid)
Note: Active nanoparticles are highly regarded in both industry and the natural sciences due to their widespread use. While natural materials have fixed physical properties regardless of size, the size of a nanoparticle determines its physical and chemical properties.
Therefore, the properties of a substance change as its size approaches the nanoscale and the percentage of atoms on the surface of the material becomes significant. An important feature of all nanostructures is that the number of surface atoms in them is greater than the number of volume atoms. This ratio increases with decreasing nanoparticle size. Therefore, nanoparticle size is an important feature. The range of change in nanoparticle activity depends on the nature and shape of the nanostructure. With However, if the energy field of nano-particles with energy exposure to electro-magnetic analogy, and if within a certain wavelength, the occurrence of chemical reactions in materials under irradiation dramatic changes the activity of nanoparticles in the size of 100nm will be dramatic.
The use of particles from micro-scale to nanoscale provides advantages for various scientific fields, but because a large percentage of their atoms are on the surface, nanomaterials can react greatly and pose potential risks to humans. To have with. Nanoparticle surface atoms are not energy compensated. In general, the results of nanoparticle energy growth can be expressed as the total energy of the atomic surface atoms. The freedom of movement of atoms on the surface of nanostructures is limited, and only vibrational movements and the movement of electrons are possible. These two electro-kinetic reactions are interdependent because the displacement of the electron clouds of the atoms inevitably changes the vibrational frequencies of the bonds of the nanoparticle atoms . On the other hand, the displacement of valence electrons in bonds is the polarity of bonds and bodies called supermolecules. Changes. In this case, electron transfer to a higher energy level is possible. In this respect, CNTs carbon nanotubes are the most interesting species under study. These carbon nanotubes interact to protect them from the environment, which is why these CNTs are called metal / carbon nanotubes.
Conclusion :
The use of particles from micro-scale to nanoscale offers advantages for various scientific fields, but because a large percentage of their atoms are on the surface, nanomaterials can react greatly and pose potential risks to humans. To have with.
Researcher and author: Dr. ( Afshin Rashid)
PhD in Nano-Microelectronics