What is the process of electrospinning?

What is the process of electrospinning?

Electrospinning is a fiber production method which uses electric force to draw charged threads of polymer solutions or polymer melts up to fiber diameters in the order of some hundred nanometers. The process does not require the use of coagulation chemistry or high temperatures to produce solid threads from solution.

What is the function of electrospinning?

The electrospinning method is used to generate a nonwoven web of micro- or nanofibers. In this method, high voltage electricity is applied to the liquid solution and a collector, which lets the solution extrude from a nozzle forming a jet. The jet formed fibers during drying and deposited these on the collector.

What is electrospinning for preparation of nanofibers?

Electrospinning is a widely used technique for the electrostatic production of nanofibers, during which electric power is used to make polymer fibers with diameters ranging from 2 nm to several micrometres from polymer solutions or melts.

What is electrospinning in tissue engineering?

Tissue engineering is an emerging multidisciplinary field that aims to regenerate damaged or lost tissues/organs of living organisms using a combination of cells and scaffolds [1,2]. Electrospinning is a spinning technique that uses electrostatic forces to produce fibrous scaffolds from biocompatible polymers.

What is the difference between electrospinning and electrospraying?

The difference between electrospinning and electrospraying techniques is based on the concentration of the polymer solution. When the solution concentration is high, the jet from Taylor cone is stabilized, and elongation takes place by whipping instability mechanism.

What are nanofibers and what are some applications of that technology?

Nanofibers have many possible technological and commercial applications. They are used in tissue engineering, drug delivery, seed coating material, cancer diagnosis, lithium-air battery, optical sensors and air filtration.

Which process is generally used to create nanofibers?

Electrospinning is a process that produces nanofiber webs by applying a high voltage charge to a polymer solution or melt and using the charge to draw the solution from the tip of a capillary to a grounded collector.

What is electrospinning and how does it work?

One such application is the electrospinning process to spin microdenier synthetic fibers from polymer solutions. The electrospinning process has previously been employed for over three decades in industries to produce various products [5-13].

What is the diameter of an electrospun fiber?

Fibers with a variety of cross sectional shapes and sizes were produced from different polymers. The diameter of these fibers was in the range of 0.05 to 5 microns. This paper describes the electrospinning process, the processing conditions, fiber morphology, and some possible uses of electrospun fibers.

What is the typical concentration for electrospinning?

A typical concentration for electrospinning is 4 % by weight. As the electric field is increased, the solution at tip of the capillary elongates from an approximately hemispherical shape to a spheroidal shape and then to a cone shape. A further increase in the electric field to about 107 V/m, initiates ejection of the jet from the apex of the cone.

What are the advantages of electrospun nanofibers?

Electrospun nanofibers have advantages such as higher surface areas than regular fibers. Electrospun nonwoven mats have small pore size, high porosity and high surface area. These porous, nonwoven polymer networks have high fiber interconnectivity.