Microscale polymeric helical structures produced by electrospinning

Kessick, Royal; Tepper, Gary

doi:10.1063/1.1762704

Cited by 115 publications

(61 citation statements)

References 8 publications

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“…Helical or curled fibers have also been observed on special collectors such as a nail tip, which concentrates the electric field [145]. The mechanism for the observed fiber morphology has been proposed to be contraction or uniform mechanical buckling of the fiber jet upon contact with the collector [133,134,136,138,146,147]. The converging electrical field drags the front part of the electrospinning jet toward the collector tip by increasing the bending instabilities of the charged jet.…”

Section: Helicalmentioning

confidence: 99%

“…Some examples of these type of bicomponent fibers are poly(p-phenylene vinylene) (PPV)/PVP fibers or PEO and the conductive polymer poly(aniline sulfonic acid). The authors suggest that the helical micro-coils observed were formed spontaneously upon contact with a conducting substrate due to the viscoelastic contraction of the fiber upon partial charge neutralization [132,133]. Lin et al developed a microfluidic electrospinning nozzle for the side-by-side deposition of two polymers to make a bi-component fiber [134].…”

Section: Helicalmentioning

confidence: 99%

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Hierarchically Structured Electrospun Fibers

Zander

2013

Polymers

130

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Abstract:Traditional electrospun nanofibers have a myriad of applications ranging from scaffolds for tissue engineering to components of biosensors and energy harvesting devices. The generally smooth one-dimensional structure of the fibers has stood as a limitation to several interesting novel applications. Control of fiber diameter, porosity and collector geometry will be briefly discussed, as will more traditional methods for controlling fiber morphology and fiber mat architecture. The remainder of the review will focus on new techniques to prepare hierarchically structured fibers. Fibers with hierarchical primary structures-including helical, buckled, and beads-on-a-string fibers, as well as fibers with secondary structures, such as nanopores, nanopillars, nanorods, and internally structured fibers and their applications-will be discussed. These new materials with helical/buckled morphology are expected to possess unique optical and mechanical properties with possible applications for negative refractive index materials, highly stretchable/high-tensile-strength materials, and components in microelectromechanical devices. Core-shell type fibers enable a much wider variety of materials to be electrospun and are expected to be widely applied in the sensing, drug delivery/controlled release fields, and in the encapsulation of live cells for biological applications. Materials with a hierarchical secondary structure are expected to provide new superhydrophobic and self-cleaning materials.

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Section: Helicalmentioning

confidence: 99%

Section: Helicalmentioning

confidence: 99%

Hierarchically Structured Electrospun Fibers

Zander

2013

Polymers

130

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“…The helical structures were formed as a result of viscoelastic contraction upon partial neutralization of the charged fibers. Such polymeric microcoils may find application sin microelectromechanical systems, advanced optical components, and drug delivery systems [36].…”

Section: Coaxial Nanofibers and Nanotubes Of Panimentioning

confidence: 99%

Nanostructured Conductive Polymers by Electrospinning

Chronakis

2010

Nanostructured Conductive Polymers

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“…Kessick et al 113 Prepared helical coils composed of a polyaniline and PS by electro spinning. Electronic polymers have been electrospun in order to develop nano scale electronic machines.…”

Section: Electronic Applicationsmentioning

confidence: 99%

Nano Fibres by Electro spinning: Properties and Applications

Nayak¹,

Padhye²

2017

JTEFT

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Electro spinning is a simple and versatile technique applicable to a wide range of polymers and solvents for the production of materials in nanometer scale. The nano fibrous materials produced by electro spinning process exhibit novel and significantly improved physical, chemical and biological properties. The small fibre diameter and the porous structure of the electrospun surfaces enable them for a wide range of applications such as wound dressing, tissue engineering scaffolds, vascular grafts, filters, membranes and sensors. In this article the principle, setup, materials used and the factors affecting the electro spinning process have been described. Also the properties & applications of electrospun fibres and the limitations & future scope of electro spinning process have been highlighted.

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Microscale polymeric helical structures produced by electrospinning

Cited by 115 publications

References 8 publications

Hierarchically Structured Electrospun Fibers

Hierarchically Structured Electrospun Fibers

Nanostructured Conductive Polymers by Electrospinning

Nano Fibres by Electro spinning: Properties and Applications

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