What are the possible harmful effects of usage of Nanoparticles? Why? Possible harmful effects of usage of Nanoparticles:

Explanation

Possible harmful effects of usage of Nanoparticles:
The research on the harmful impact of application of nanotechnology is also equally important and fast developing .The major concern here is that the nanoparticles have the dimensions same as that of the biological molecules such as proteins.They may easily get absorbed onto the surface of living organisms and they might enter the tissues and fluids of the body .
The adsorbing nature depends on the surface of the nanoparticles ,Indeed it is possible to deliver a drug directly to a specific cell in the body y designing the surface of a nanoparticle so that it adsorbs specifically onto the surface of the target cell.
The interation with living systems is also affected by the dimensions of the nanoparticles,for instance ,nanoparticle of a few nanometer size may reach well inside biomolecules,which is not possible for larger nanoparticles.
Nanoparticles can also cross cell membranes.It is also possible for the inhaled nanoparticles to reach the blood ,to reach other sites such as the liver ,heart or blood cells.
Researchers re trying to understand the response of living organisms to presence of nanoparticles of varrying size,shape,chemical composition and surface characteristics.