Influence of Salts on Electrospinning of Aqueous and Nonaqueous Polymer Solutions

Yalçinkaya, Fatma; Yalcinkaya, Baturalp; Jirsák, Oldřich

doi:10.1155/2015/134251

Cited by 42 publications

(33 citation statements)

References 28 publications

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“…One of the effective approaches to adjust the solution conductivity is by introducing a conductive nanoparticle filler or soluble salt into the solution. The incorporation of salt increased the stretching of the polymer jet and reduced the incident of bead formation by distributing the charges consistently to control the fiber uniformity [33].…”

Section: Technical Aspects In Electrospinningmentioning

confidence: 99%

A Review of Electrospun Conductive Polyaniline Based Nanofiber Composites and Blends: Processing Features, Applications, and Future Directions

Razak

Wahab

Fadil

et al. 2015

Advances in Materials Science and Engineering

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Electrospun polymer nanofibers with high surface area to volume ratio and tunable characteristic are formed through the application of strong electrostatic field. Electrospinning has been identified as a straight forward and viable technique to produce nanofibers from polymer solution as their initial precursor. These nanofiber materials have attracted attention of researchers due to their enhanced and exceptional nanostructural characteristics. Electrospun polyaniline (PANI) based nanofiber is one of the important new materials for the rapidly growing technology development such as nanofiber based sensor devices, conductive tissue engineering scaffold materials, supercapacitors, and flexible solar cells applications. PANI however is relatively hard to process compared to that of other conventional polymers and plastics. The processing of PANI is daunting, mainly due to its rigid backbone which is related to its high level of conjugation. The challenges faced in the electrospinning processing of neat PANI have alternatively led to the development of the electrospun PANI based composites and blends. A review on the research activities of the electrospinning processing of the PANI based nanofibers, the potential prospect in various fields, and their future direction are presented.

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Section: Technical Aspects In Electrospinningmentioning

confidence: 99%

A Review of Electrospun Conductive Polyaniline Based Nanofiber Composites and Blends: Processing Features, Applications, and Future Directions

Razak

Wahab

Fadil

et al. 2015

Advances in Materials Science and Engineering

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“…Nanofi brous mats with the fi bre diameters in the range of some ten to several hundred nanometres can be prepared with electrospinning from diverse polymer solutions or melts. While the easiest technology uses a syringe to extrude the polymer solution through a fi ne needle into a high electric fi eld [1,2], needleless technologies allow for higher production output and can oft en be upscaled from lab to industrial scale [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Sterilization of PAN/Gelatine Nanofibrous Mats for Cell Growth

Wehlage¹,

Blattner²,

Sabantina³

et al. 2019

TEK

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Nanofi brous mats can be used as a substrate for eukaryotic cell growth in biotechnology, tissue engineering, etc. Several adherent cells (e.g. human fi broblasts) have been shown to grow well on fi ne fi bres. For most applications, it is necessary to sterilize nanofi brous mats before adding the cells. Another possibility would be the addition of antibiotics and antimycotics to the cell culture medium to prevent microbial infection. However, antibiotics are disadvantageous since they might promote the growth of resistant bacteria in possible future medical applications of nanofi brous mats. Possible sterilization techniques include autoclaving, UV-sterilization, ozone treatment, heat sterilization and other techniques which usually necessitate more expensive equipment, such as gamma irradiation. Systematic examinations of the infl uence of diff erent sterilization techniques on the cell growth on nanofi brous mats have not yet been reported in the literature. Here, we report on the fi rst experimental investigations of the eff ect of sterilization with diff erent methods on the properties of polyacrylonitrile (PAN)/gelatine nanofi brous mats, and the resulting growth and adhesion of Chinese hamster ovary cells. While all techniques under investigation yielded sterile nanofibrous mats, autoclaving and heat sterilization change the PAN/gelatine fi bre morphology. Ozone, on the other hand, modifi es the pH value of the culture medium and partly impedes cell adhesion. UV sterilization also suggests a chemical modifi cation of the nanofi brous mat. Unexpectedly, heat sterilization resulted in the highest amount of adherent Chinese hamster ovary cells grown on PAN/gelatine nanofi brous mats in spite of gelatine melting.

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“…Here, the capillary tube can have either one tip or multiple tips. On the other hand, free surfaces can also be used as a feeding unit especially for mass production [25]. The collector can be chosen as a plate shape or rotating mandrels in varying diameters based on the end use [26,27].…”

Section: Working Principle Of Electrospinningmentioning

confidence: 99%

Design parameters for electrospun biodegradable vascular grafts

Yalcin-Enis

Sadikoglu

2016

Journal of Industrial Textiles

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The inadequacies of the currently used small diameter, non-biodegradable synthetic grafts prompt researchers to focus on the design parameters of vascular grafts. Since the purpose is to mimic the native vessel as far as possible, the design parameters are mainly determined by the layout of cell types and proteins in the layers of the vessels and the nano and micro structure of their environments. In consequence of this, the complex structure of native vessels has become a broad source of inspiration for researchers. Electrospun fibrous scaffolds with their well accepted advantages are promising candidates and researchers are able to work with various materials with differing forms, structures, dimensions, and surface modifications according to their requirements. On the other hand, both synthetic biodegradable polymers and natural proteins are the key materials that enable researchers to take one step closer to achieving the goal of creating an autologous vessel at some time after implantation. When the priority and significance of the need for small diameter vascular grafts is considered, the research field to improve vascular grafts is worthy of note. In this regard, the objective of this review is to discuss comparatively the current studies on the design parameters of electrospun vascular grafts, defined as fiber orientation, fiber diameter, pore size and porosity, wall thickness, and material selection, based on the structure of native blood vessels, the requirements of vascular grafts and electrospinning technology, and the advantages of electrospun vascular grafts, to give an outlook for further studies.

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Influence of Salts on Electrospinning of Aqueous and Nonaqueous Polymer Solutions

Cited by 42 publications

References 28 publications

A Review of Electrospun Conductive Polyaniline Based Nanofiber Composites and Blends: Processing Features, Applications, and Future Directions

A Review of Electrospun Conductive Polyaniline Based Nanofiber Composites and Blends: Processing Features, Applications, and Future Directions

Sterilization of PAN/Gelatine Nanofibrous Mats for Cell Growth

Design parameters for electrospun biodegradable vascular grafts

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