Question

The size of a nano particle is about _ times smaller than the diameter of a single strand of human hair?
(A) $10$
(B) $100$
(C) $1000$
(D) $50000$

Answer 1

Nanoparticles are used to increase tensile strength of polymer. Polymers are large molecules made when smaller Molecules join together (monomers). Nanoparticles are smaller size particles. Due to the smaller size of nanoparticles they enter in living tissue.

Complete step by step answer:
Nanoparticles are used to increase the tensile strength of polymers. Polymers are large molecules made when smaller Molecules join together (monomers). Nanoparticles are smaller size particles. Due to the smaller size of nanoparticles they enter in living tissue.
Complete step by step answer: nanoparticles are too small particles they enter in living tissue. Nanoparticles have high surface area to volume ratio so they behave as catalysts. A Catalyst is a substance that increases the rate of a chemical reaction and a catalyst is not consumed during chemical reaction. So catalysts are used again and again.
Nanoparticles are highly mobile in the Free State. Nanoparticles are two types: hard and soft. Hard nanoparticles examples are Titania (titanium dioxide), silica (silica dioxide) particles and soft nanoparticles examples are nano droplets, vesicles, and liposomes.
The size of nanoparticles is about 50000 times smaller than the diameter of a single strand of human hair, The correct answer is option D. And the size of nanoparticles is 1/100th smaller than typical bacteria.

Additional Information : Due to smaller size of nano particles cannot be seen with ordinary optical microscopes requiring the use of electron microscopes.
Nanoparticles used as drug carriers.
- Aluminum nanoparticles are used in rocket repellents that burn at double the rate.
- Copper nanoparticles are used in automotive lubricant to reduce engine wear.
- Nano particles are found in fabrics to resist wrinkling, staining and bacteria.

Note: Nanoparticle catalysts are used to improve fuel production efficiency, reducing fuel consumption bin vehicles.
- Nanoparticles catalysts also reduced fuel consumption in power plants.
- Nanoparticle and nano fibers play an important role in manufacture of novel scaffold structures for tissue and bone repair.