Coaxial Electrospinning Formation of Complex Polymer Fibers and their Applications

Han, Daewoo; Steckl, A. J.

doi:10.1002/cplu.201900281

Cited by 217 publications

(168 citation statements)

References 243 publications

Supporting

Mentioning

145

Contrasting

Order By: Relevance

“…Electrospinning is a versatile, cost-effective, and environmental friendly process currently used to produce continuous nanofibers for tissue engineering, sensors, water and air purification, etc. [16]. Also, electrospinning has been successfully used for synthesis of TiO 2 nanofibers by using solutions that contained poly (vinyl pyrrolidone) (PVP) and Ti(IV)-isopropoxide [17,18], polyvinyl acetate (PVAc) and titanium tetraisopropoxide [19], polylactic acid (PLA), tetrabutyl titanate, and hexafluoroisopropanol [20].…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic Degradation of Ampicillin Using PLA/TiO2 Hybrid Nanofibers Coated on Different Types of Fiberglass

Bobiricǎ

Râpă

et al. 2020

Water

View full text Add to dashboard Cite

New photocatalytic membranes based on polylactic acid (PLA)/TiO2 hybrid nanofibers deposited on fiberglass supports were prepared and tested for the removal of ampicillin from aqueous solutions. The electrospinning technique was used to obtain hybrid nanofibers that were deposited on three types of fiberglass with different structures, resulting in three distinct photocatalytic membranes namely fiberglass fabric plain woven-type membrane, fiberglass mat-type membrane, and fiberglass fabric one-fold edge-type membrane. The results of the photocatalytic tests showed that the highest efficiency of ampicillin removal from aqueous solution is obtained with the fiberglass fabric plain woven-type membrane. Although it has been shown that the rate of photocatalytic degradation of ampicillin is high, being practically eliminated within the first 30 min of photocatalysis, the degree of mineralization of the aqueous solution is low even after two hours of photocatalysis due to the degradation of PLA from the photocatalytic membrane. The instability of PLA in the reactive environment of the photocatalytic reactor, evidenced by morphological, mineralogical and spectroscopic analyzes as well as by kinetic studies, is closely related to the structure of the fiberglass membrane used as a support for PLA/TiO2 hybrid nanofibers.

show abstract

Section: Introductionmentioning

confidence: 99%

Photocatalytic Degradation of Ampicillin Using PLA/TiO2 Hybrid Nanofibers Coated on Different Types of Fiberglass

Bobiricǎ

Râpă

et al. 2020

Water

View full text Add to dashboard Cite

show abstract

“…(1) fabricate electrospun membranes that incorporate a hydrophilic surface within a hydrophobic core into a single coresheath fiber, (2) encapsulate and protect sensitive substances from the outer environment by placing the drug within the core, (3) provide programmable release kinetics from the core of the fibers; e.g. to tailor for sustained release kinetics, while allowing (4) the controlled release of defined concentrations of pharmaceutical ingredients [11][12][13]. Further, by integrating a mechanically adapted polymer into the core of the fibers, it is also feasible to improve the mechanical behavior of the final construct.…”

Section: Introductionmentioning

confidence: 99%

Nylon-6/chitosan core/shell antimicrobial nanofibers for the prevention of mesh-associated surgical site infection

et al. 2020

View full text Add to dashboard Cite

The state-of-the-art hernia meshes, used in hospitals for hernia repair, are predominantly polymeric textile-based constructs that present high mechanical strength, but lack antimicrobial properties. Consequently, preventing bacterial colonization of implanted prosthetic meshes is of major clinical relevance for patients undergoing hernia repair. In this study, the co-axial electrospinning technique was investigated for the development of a novel mechanically stable structure incorporating dual drug release antimicrobial action. Core/shell structured nanofibers were developed, consisting of Nylon-6 in the core, to provide the appropriate mechanical stability, and Chitosan/Polyethylene oxide in the shell to provide bacteriostatic action. The core/shell structure consisted of a binary antimicrobial system incorporating 5-chloro-8-quinolinol in the chitosan shell, with the sustained release of Poly(hexanide) from the Nylon-6 core of the fibers. Homogeneous nanofibers with a "beads-in-fiber" architecture were observed by TEM, and validated by FTIR and XPS. The composite nanofibrous meshes significantly advance the stress-strain responses in comparison to the counterpart single-polymer electrospun meshes. The antimicrobial effectiveness was evaluated in vitro against two of the most commonly occurring pathogenic bacteria; S. aureus and P. aeruginosa, in surgical site infections. This study illustrates how the tailoring of core/shell nanofibers can be of interest for the development of active antimicrobial surfaces.

show abstract

“…It is worth mentioning that the surface morphology and properties of electrospun fibers can be affected by (I) the working parameters of the electrospinning process represented by ambient parameters (relative humidity and temperature), solution parameters (polymer concentration, molecular weight, viscosity, conductivity, and surface tension), and processing parameters (flow rate, applied voltage, distance between the tip of the needle and the collector [DTC], collector type, and diameter of the needle); (II) electrospinning types; (III) composites; and (IV) postprocessing treatments …”

Section: Brief Introduction Of Electrospinningmentioning

confidence: 99%

A mini review on the generation of crimped ultrathin fibers via electrospinning: Materials, strategies, and applications

Zaarour

Zhu

Huang

et al. 2020

Polymers for Advanced Techs

View full text Add to dashboard Cite

Structures modification of fibers has been attracting significant attention in various fields and applications. Among different techniques of fabricating ultrathin fibers, electrospinning is the most commonly adopted method because of the ease of forming fibers with a wide range of properties and its exceptional advantages, such as the ability to spin into different shapes and sizes, as well as the adaptable porosity of electrospun fiber webs. The crimped structure has been attracting the attention of scientific researchers owing to its unique properties (eg, spring-like behavior, supreme strain, remarkable specific surface area, good piezoelectric properties, excellent biological properties, and so on). Therefore, this study summarizes a review of the strategies and methods, reported so far, of generating electrospun crimped ultrathin fibers of various polymers. The review focuses on the polymer types, formation methods, characterizations, and applications of the electrospun crimped ultrathin fibers. We believe this work can serve as an important reference for the materials, strategies, and applications of crimped fibers.

show abstract

Coaxial Electrospinning Formation of Complex Polymer Fibers and their Applications

Cited by 217 publications

References 243 publications

Photocatalytic Degradation of Ampicillin Using PLA/TiO2 Hybrid Nanofibers Coated on Different Types of Fiberglass

Photocatalytic Degradation of Ampicillin Using PLA/TiO2 Hybrid Nanofibers Coated on Different Types of Fiberglass

Nylon-6/chitosan core/shell antimicrobial nanofibers for the prevention of mesh-associated surgical site infection

A mini review on the generation of crimped ultrathin fibers via electrospinning: Materials, strategies, and applications

Contact Info

Product

Resources

About