Synergistic effect of electric field and polymer structures acting on fabricating beads-free robust superhydrophobic electrospun fibers

The patterning of electrospun fibers is a key technology applicable to various fields. This study reports a novel focused patterning method for electrospun nanofibers that uses a cylindrical dielectric guide. The finite elements method (FEM) was used to analyze the electric field focusing phenomenon and ground its explanation in established theory. The horizontal and vertical electric field strengths in the simulation are shown to be key factors in determining the spatial distribution of nanofibers. The experimental results demonstrate a relationship between the size of the cylindrical dielectric guide and that of the electrospun area accumulated in the collector. By concentrating the electric field, we were able to fabricate a pattern of less than 6 mm. The demonstration of continuous line and square patterning shows that the electrospun area can be well controlled. This novel patterning method can be used in a variety of applications, such as sensors, biomedical devices, batteries, and composites.

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Synergistic effect of welding electrospun fibers and MWCNT reinforcement on strength enhancement of PAN–PVC non-woven mats for water filtration

Chemical Engineering Science ◽

10.1016/j.ces.2018.09.019 ◽

2019 ◽

Vol 193 ◽

pp. 230-242 ◽

Cited By ~ 16

Author(s):

Janthana Namsaeng ◽

Winita Punyodom ◽

Patnarin Worajittiphon

Keyword(s):

Synergistic Effect ◽

Water Filtration ◽

Electrospun Fibers ◽

Strength Enhancement

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The History of the Science and Technology of Electrospinning from 1600 to 1995

Journal of Engineered Fibers and Fabrics ◽

10.1177/155892501200702s10 ◽

2012 ◽

Vol 7 (2_suppl) ◽

pp. 155892501200702 ◽

Cited By ~ 24

Author(s):

Nick Tucker ◽

Jonathan J. Stanger ◽

Mark P. Staiger ◽

Hussam Razzaq ◽

Kathleen Hofman

Keyword(s):

Electric Field ◽

First Record ◽

Electrospun Fibers ◽

Current Interest ◽

Research Groups ◽

Theoretical Underpinning ◽

Filter Materials ◽

Nano Fiber ◽

History Of ◽

Number Of Publications

This paper outlines the story of the inventions and discoveries that directly relate to the genesis and development of electrostatic production and drawing of fibres: electrospinning. Current interest in the process is due to the ease with which nano-scale fibers can be produced in the laboratory. In 1600, the first record of the electrostatic attraction of a liquid was observed by William Gilbert. Christian Friedrich Schönbein produced highly nitrated cellulose in 1846. In 1887 Charles Vernon Boys described the process in a paper on nano-fiber manufacture. John Francis Cooley filed the first electrospinning patent in 1900. In 1914 John Zeleny published work on the behaviour of fluid droplets at the end of metal capillaries. His effort began the attempt to mathematically model the behavior of fluids under electrostatic forces. Between 1931 and 1944 Anton Formhals took out at least 22 patents on electrospinning. In 1938, N.D. Rozenblum and I.V. Petryanov-Sokolov generated electrospun fibers, which they developed into filter materials. Between 1964 and 1969 Sir Geoffrey Ingram Taylor produced the beginnings of a theoretical underpinning of electrospinning by mathematically modelling the shape of the (Taylor) cone formed by the fluid droplet under the effect of an electric field. In the early 1990s several research groups (notably that of Reneker who popularised the name electrospinning) demonstrated electrospun nano-fibers. Since 1995, the number of publications about electrospinning has been increasing exponentially every year.

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Bipolar electrochemistry in synergy with electrophoresis: electric field-driven electrosynthesis of anisotropic polymeric materials

Chemical Communications ◽

10.1039/d0cc06204a ◽

2020 ◽

Vol 56 (92) ◽

pp. 14327-14336

Author(s):

Naoki Shida ◽

Shinsuke Inagi

Keyword(s):

Synergistic Effect ◽

Electric Field ◽

Functional Materials ◽

Polymeric Materials ◽

Electrochemistry And Electrophoresis ◽

Bipolar Electrochemistry

The synergistic effect of bipolar electrochemistry and electrophoresis enables facile access to various anisotropic functional materials.

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Fabrication of Microfibrous Patterns via Electrospinning

Materials Science Forum ◽

10.4028/www.scientific.net/msf.789.32 ◽

2014 ◽

Vol 789 ◽

pp. 32-35

Author(s):

Yuan Yuan Huang ◽

Shu Liang Liu ◽

Bin Sun ◽

Yun Ze Long

Keyword(s):

Electric Field ◽

Field Line ◽

Polyvinyl Pyrrolidone ◽

Electrospun Fibers ◽

Electric Field Line ◽

Grid Based ◽

Spun Fibers

Using patterned conductive and insulating collection devices, fibrous patterns from polyvinyl pyrrolidone were fabricated by electrospinning. Considering that the electrospun fibers tend to deposit along the direction of electric field line, when conductive patterned template is used as collector during electrospinning, the as-spun fibers tend to assemble onto the conductive grids, whereas the dropping fibers prefer to avoid insulation grid by concentrating toward the surface of the Al foil when an insulating grid based on Al foil is used as collector.

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Control of Spatial Deposition of Electrospun Fiber Using Electric Field Manipulation

Journal of Engineered Fibers and Fabrics ◽

10.1177/155892501400900118 ◽

2014 ◽

Vol 9 (1) ◽

pp. 155892501400900 ◽

Cited By ~ 2

Author(s):

Abdul Hamid Nurfaizey ◽

Jonathan Stanger ◽

Nick Tucker ◽

Neil Buunk ◽

Alan R. Wood ◽

...

Keyword(s):

Electric Field ◽

Electrospun Fiber ◽

Electrospun Fibers ◽

Element Analysis ◽

Significant Challenge ◽

Deposition Area ◽

Controlled Deposition ◽

Uniform Deposition ◽

Field Manipulation ◽

Made In

A significant challenge in the synthesis of uniform membranes via electrospinning is achieving a spatially uniform deposition of electrospun fibers. The problem is more pronounced in the case of a multi-spinneret system due to self repulsion between the jets. In this study, electric field manipulation ( via auxiliary electrodes) is explored as a potential technique for controlling the spatial deposition area of electrospun fiber. It was observed experimentally that the location and size of the deposition area can be moved linearly in response to the applied voltages at the auxiliary electrodes. Finite element analysis (FEA) was used to simulate the electric field strength and distribution at a given applied voltage and its effect on the flight path of electrospun fiber. Comparisons between experiments and simulations were made in evaluating the accuracy of simulations. The adaptation of this technique in production would provide a method of controlled deposition for producing uniform electrospun fiber membranes.

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Controlled Self-Assembly of λ-DNA Networks with the Synergistic Effect of DC Electric Field

10.1101/774901 ◽

2019 ◽

Author(s):

M. Gao ◽

J. Hu ◽

Y. Wang ◽

M. Liu ◽

J. Wang ◽

...

Keyword(s):

Synergistic Effect ◽

Electric Field ◽

Morphological Change ◽

Large Scale ◽

Intensity Change ◽

Dna Molecules ◽

Mica Surface ◽

Regular Structures ◽

Dc Electric Field ◽

Self Assembled

AbstractLarge-scale and morphologically controlled self-assembled λ-DNA networks were successfully constructed by the synergistic effect of DC electric field. The effect of DNA concentration, direction and intensity of the electric field, even the modification of the mica surface using Mg2+ on the characteristics of the as-prepared DNA networks were investigated in detail by atomic force microscopy (AFM). It was found that the horizontal electric field was more advantageous to the formation of DNA networks with more regular structures. At the same concentration, the height of DNA network was not affected significantly by the intensity change of the horizontal electric field. The modification of Mg2+ on mica surface increased the aggregation of DNA molecules, which contributed to the morphological change of the DNA networks. Furthermore, DNA molecules were obviously stretched in both horizontal and vertical electric fields at low DNA concentrations.Statement of significanceThrough the synergistic effect of DC electric field, a series of large-scale and morphologically controlled self-assembled λ-DNA networks were successfully fabricated. We found that the horizontal electric field was more advantageous to the formation of DNA networks with more regular structures. At the same concentration of DNA solution, the height of DNA network was not affected significantly by the intensity change of the horizontal electric field. The modification of Mg2+ on mica surface increased the aggregation of DNA molecules, which contributed to the morphological change of the DNA networks. We suggest this study will promote the understanding on the preparation of controllable self-assembled λ-DNA networks and the application of DNA networks.

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