Get To Know The Allure Of Magnetic Particles!
Nanoparticles are a widely used component in Nanotechnology. They are basically particles of really small in size, approximately measuring between 1 and 100 nanometers on the nanometer scale. They are defined as a smaller particle of a large element. They are known to have parallel properties as their parent element, and their transportation and properties are like that of their parent chemical.
Magnetic particles are a category of nanoparticles which can be influenced using magnetic field inclines. They usually consist of magnetic components such as iron, nickel and cobalt and their chemical compounds.
Magnetic nano particles which consist of a number of individual magnetic nanoparticles are known as magnetic nanobeads which usually have a diameter of 50–200 nanometers.
In the recent years Magnetic particles have been the topic of many researches because they have several attractive properties which have potential use in several industries such as nano material-based catalysts, biomedicine and tissue specific targeting, magnetically photonic crystals, microfluidics, magnetic resonance imaging, magnetic particle imaging, data storage, environmental remediation, nanofluid, optical filters and defect sensor.
The physical and chemical properties of magnetic particles largely depend on its production method and chemical structure. Usually the particles range from 1 to 100 nm in size and may display super paramagnetism.
There Are Three Types Of Magnetic Particles
Magnetic nano particles are of several types such as oxides: ferrites, magnetic nanoparticle with a shell and metallic magnetic nano particle with a shell. Ferrite nanoparticles or iron oxide nano particles are one of the most commonly used magnetic particles till date.
The very small ferrite particles have super paramagnetic properties which prevents self-agglomeration since they exhibit their magnetic behavior only when an external magnetic field is applied. The magnetic moment of ferrite nanoparticles can be deeply improved by controlled grouping of a number of single super paramagnetic nanoparticles into super paramagnetic nanoparticle collections, such as the magnetic nanobeads.
Magnetic Nanoparticles Are Greatly Used In The Biomedical Industry
The exterior of a magnetite magnetic particle is moderately motionless and does not usually allow formation of strong bonds with molecules. However, the properties of the magnetic particles can be improved by adding a layer of silica onto their exterior.
On the other hand Metallic nanoparticles are known to be advantageous for some technical applications because of their higher magnetic powers whereas oxides (maghemite, magnetite) are advantageous for biomedical applications.
Metallic nanoparticles have the great disadvantage of being pyrophoric which means they are reactive to oxidizing agents to several levels. Due to this it becomes difficult to handle them and enables unwanted side effects which make them less suitable for biomedical applications.
The metallic center of magnetic particles may be inactivated by gentle oxidation and precious metals. Nanoparticles with a magnetic center which consists either of elementary Iron or Cobalt with a nonreactive shell made of graphene have been manufactured in recent times. They have a higher stability in acidic as well as in basic solution as well as organic solvents. They are usually used to manufacture carbon nano tubes.
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