Abstract
Nanofibers are the fibers having diameter in nanometer ranging from 50-1000nm.Nanofibers can be prepared by using polymers like cellulose, silk, fibroin, keratin, gelatin, polylactic acid, polyurethane etc. The chain of polymers are connected by covalent bonds. The diameter of nanofibers depends on the type of polymers used in preparation method. There are various methods are used to fabricate nanofibers like electrospinning, thermal induced phase separation, drawing, template synthesis, self-assembly. Nanofibers are widely used in various fields like in filtration, affinity membrane and recovery of metal ions, tissue engineering, wound dressing, catalyst s; enzyme, carriers, sensor, energy conversion and storage, sound absorbtive material etc. Nanofibers are the newer technology which is widely used than the others due to large surface area. It has high porosity and small pore size hence it does not allow to bacterial infection due to larger size of bacteria. It has higher mechanical strength hence it is easy to use as compare to other.
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