What is the difference between atoms and nanoparticles ?

What is the difference between atoms and nanoparticles ?
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1 Answer

Answer :

1. Atomic element is the smallest particle of matter while nanoparticles are zero-dimensional irregular or semi-crystalline matter. 2. Atomic size is not dependent but nanoparticle size is dependent ( between 1 and 100 nm ). 3. Atoms may be inert but the activity of nanoparticles is much higher than that of ordinary matter.
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Consider the following methods by which gene therapy can be performed: 1. By introducing a new gene into the body 2. By the use of stem cells 3. By delivery of genes using gold nanoparticles The correct methods could be: (a) 1 and 2 only (b) 1 and 3 only (c) 2 and 3 only (d) 1, 2 and 3 only

Description : Consider the following methods by which gene therapy can be performed: 1. By introducing a new gene into the body 2. By the use of stem cells 3. By delivery of genes using gold nanoparticles The correct methods could be: (a) 1 and 2 only (b) 1 and 3 only (c) 2 and 3 only (d) 1, 2 and 3 only

Last Answer : Ans:(a)

State two methods of synthesis of nanoparticles.

Description : State two methods of synthesis of nanoparticles. 

Last Answer : Any two methods (i)Physical method. (ii)Chemical method. (iii)Biological method. (iv)Hybrid method. (v)Mechanical Vapour deposition method. (vi)Colloidal Method. (vii)Sol-gel method. (viii)Ball milling method. (ix)Melt mixing method. (x)PVD (Physical Vapour Deposition) method. (xi)Sputtering Method.

What is nanotechnology? Define nanoparticles.

Description : What is nanotechnology? Define nanoparticles. 

Last Answer : Nanotechnology: The branch of engineering that deals with things smaller than 100 nm is called as nanotechnology.  Nanoparticles: The particle having the size in the range from 0.2 nm to 100 nm is called as nanoparticle.