Investigation of a New Needleless Electrospinning Method for the Production of Nanofibers

Abstract

This paper presents the possibility of nanofiber formation by a new multiple jet method. A novel needleless electrospinning apparatus was used to produce nanofibers. This employs a new design for supplying solution to a metal roller spinneret. The advantage of this setup is its ease of scaling-up for increased output. Using this new method it was possible to increase the nanofiber production rate because of the multiple jets. The productivity rate has been significantly enhanced and was 24–30 times higher than single needle electrospinning. It was also possible to produce thinner fibers than the single needle method. It was found that fibers produced by this novel needleless electrospinning had fewer beadings than fibers produced by the conventional electrospinning method. The effects of processing parameters including applied voltage and spinning electrospinning distance on eletrospun fiber diameter were also investigated. The study showed that the electrospun fiber diameter was strongly governed by the processing parameters. It was observed that there was a strong interaction between these parameters.

Biomedical Applications of Electrospun Nanofibers: Drug and Nanoparticle Delivery

“…This distance needs to be optimized as it might be the factor that distinguishes electrospraying and electrospinning. Typically a distance ranging from 10 to 20 cm is considered to be an effective spinning distance with the conventional method of electrospinning [24]. According to Doshi and Reneker, the larger the distance from the Taylor cone, the smaller the fiber diameter [9].…”

The Electrospun Ceramic Hollow Nanofibers

“…The rheological parameters, the solubility of the constituents, and the phase separation of the employed blends influence the homogeneity of their respective solutions [ 57 ]. The main challenge in this technique is its low throughput, varying between 1 and 5 mL/h depending on the flow rate of 0.1 to 1 g/h (that is based on the fiber weight), and depending on the operating factors as well as on the solution properties [ 58 , 59 ]. Generally, decreasing the amount of solid materials in the spinning solution as well as the flow rate, declines the nanofibers diameter and the throughput [ 60 ].…”

“…Moreover, triaxial electrospinning enables the production of nanofibers from non-electrospinnable components. However, problems such as needle blocking and configuration complexity of this system are challenging [ 59 , 89 , 90 ].…”

An overview on the development of nanofiber‐based as polymer electrolyte membrane and electrocatalyst in fuel cell application

“…Therefore, it is important to optimize this distance since it may be the aspect that determines electro spraying and electrospinning. Commonly, a distance between tip and collector between 10 and 20 cm is recognized as an appropriate spinning distance 137 . Doshi and Reneker 119 stated in their research that the more significant distance from the capillary tip and collector, the smaller diameter of nanofibers.…”