Journal of Nanomaterials & Molecular NanotechnologyISSN: 2324-8777

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Particle, in Nanotechnology, is defined as a small object that measures at least one dimension less than 100 nanometers. Particles are futher classified based on the diameter. They are Coarse particles (2,500 - 10,000 nm), Fine particles (100 - 2,500 nm), Ultrafine particles or Nanoparticles ranges from 1 and 100 nm in size. Nanoparticle research is currently an area of intense scientific interest due to a wide variety of potential applications in biomedical, optical and electronic fields. They have great scientific interests as they are effectively bridge between bulk and atomics or molecular structures. The materials at nanoscale have size dependent properties. Thus the materials properties change as their size approaches the nanoscale that leading the percentage of atoms at the surface of a material becomes significant. Thus one can observe that nanoparticles have a greater surface area per weight than larger particles which causes them to be more reactive to some other molecules. The Nanoparticles have shown many potential uses in diverse fields like Medicine, Biomedical, Manufacturing and Materials, Environment, Energy and Electronics, Industrial. Irrespective of these potential uses, Nanoparticles present possible dangers, both medically and environmentally, mostly due to high surface to volume ratio that makes the particles highly reactive or catalytic. They are also able to pass through cell membranes in organisms, and their interactions with biological systems are relatively unknown.