Electrospinning of very long and highly aligned fibers

Cai, Xiaomei; Zhu, Ping; Lu, Xizhao; Liu, Yifang; Lei, Tingping; Sun, Di

doi:10.1007/s10853-017-1529-0

Cited by 53 publications

(31 citation statements)

References 32 publications

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“…[ 92 ] As a result of the long jet travelling distances, whipping instabilities dominate the process and the fiber deposition is characteristically chaotic creating random fiber architectures. [ 93 ] Different process components have been investigated and manipulated since, thereby creating different sized fibers and scaffold architectures.…”

Section: Fiber Patterning Technologiesmentioning

confidence: 99%

Fiber Scaffold Patterning for Mending Hearts: 3D Organization Bringing the Next Step

Kristen

Ainsworth

Chirico

et al. 2019

Adv Healthcare Materials

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Heart failure (HF) is a leading cause of death worldwide. The most common conditions that lead to HF are coronary artery disease, myocardial infarction, valve disorders, high blood pressure, and cardiomyopathy. Due to the limited regenerative capacity of the heart, the only curative therapy currently available is heart transplantation. Therefore, there is a great need for the development of novel regenerative strategies to repair the injured myocardium, replace damaged valves, and treat occluded coronary arteries. Recent advances in manufacturing technologies have resulted in the precise fabrication of 3D fiber scaffolds with high architectural control that can support and guide new tissue growth, opening exciting new avenues for repair of the human heart. This review discusses the recent advancements in the novel research field of fiber patterning manufacturing technologies for cardiac tissue engineering (cTE) and to what extent these technologies could meet the requirements of the highly organized and structured cardiac tissues. Additionally, future directions of these novel fiber patterning technologies, designs, and applicability to advance cTE are presented.

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Section: Fiber Patterning Technologiesmentioning

confidence: 99%

Fiber Scaffold Patterning for Mending Hearts: 3D Organization Bringing the Next Step

Kristen

Ainsworth

Chirico

et al. 2019

Adv Healthcare Materials

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“…The force induces stretching and alignment of the polymer chains, as well as coalignment of carbon nanotubes (CNT) [2]. There are several reported techniques for fiber alignment; Cai et al [3], used a collector of different geometry (U) to produce long, aligned fibers. Katta et al [4], used copper wires in the form of a circular drum as collector which allows to obtain aligned fibers widely manipulated.…”

Section: Introductionmentioning

confidence: 99%

Elaboration and characterization of P3HT–PEO–SWCNT fibers by electrospinning technique

et al. 2020

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In the present work, we report the preparation by the electrospinning technique and the characterization of poly(3hexylthiophene)-polyethylene oxide-single wall carbon nanotubes (P3HT-PEO-SWCNT) fibers. The SWCNT concentration into the P3HT-PEO matrix is varied from 0.2 to 1%. Optical, electrical, thermal, and morphological properties of the P3HT-PEO-SWCNT fibers are determined. The incorporation of the SWCNT into the P3HT-PEO polymer matrix is determined by SEM, EDS analysis, TEM, FTIR, and Raman. The optical properties are analyzed by the determination of photoluminescence and photoresponse. The stability and degradation temperature of the fibers are determined by TGA. The morphology of the P3HT-PEO-SWCNT fibers depends on the SWCNT concentration, in all cases non-beaded fibers are obtained. It is found that the SWCNT incorporating into the P3HT-PEO fibers increases the conjugation length of P3HT chains. Charge transfer from P3HT to SWCNT is corroborated by photoluminescence and Raman. The P3HT-PEO-SWCNT fibers obtained in this work exhibit interesting optoelectronic properties that could be useful for device applications.

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“…However, this liquid‐to‐solid transferring process normally results in randomly distributed fibers with poor electrical properties and limited response to mechanical stimuli. Therefore, to improve the performance of electrospun fibers, several methods have been demonstrated to obtain aligned electrospun fibers . Two most frequently adopted methods are: 1) using a high‐speed rotating collector with a very sharp edge, and 2) using two separated parallel electrodes .…”

Section: Introductionmentioning

confidence: 99%

Highly Oriented Electrospun P(VDF‐TrFE) Fibers via Mechanical Stretching for Wearable Motion Sensing

Zhang

et al. 2018

Adv Materials Technologies

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materials, piezoelectric materials, which can convert mechanical shape changes into electric outputs, are particularly favorable to fabricate wearable devices for mechanicalrelated sensing and power generation. [15][16][17] According to material molecular compositions, piezoelectric materials are generally divided into ceramics and polymers. Indeed, even though inorganic piezoelectric materials offer high piezoelectric property, they are mechanically hard and brittle, which have difficulties to be directly applied to wearable devices. Besides, many piezoelectric ceramics contain heavy metal elements such as lead, that are harmful to human and environment. [18][19][20] On the other hand, piezoelectric polymers, represented by polyvinylidene fluoride (PVDF) and its copolymer poly[(vinylidenefluoride-cotrifluoroethylene] (P(VDF-TrFE)), are more preferable for wearable devices as they are lightweight, stretchable, environmentfriendly and chemically stable. [21,22] To construct piezoelectric polymer fibers, electrospinning, as a representative template-free method, [23,24] is a versatile technique to produce extended length of fiber-shaped structures with a number of advantages such as large surface area, tunable surface morphologies, and enhanced mechanical performance. [25][26][27][28] With electrospinning, when the droplet of polymer solution is charged by high applied voltage, the liquid droplet is pulled into a thin fiber and then collected by the grounded electrode. However, this liquid-to-solid transferring process normally results in randomly distributed fibers with poor electrical properties and limited response to mechanical stimuli. Therefore, to improve the performance of electrospun fibers, several methods have been demonstrated to obtain aligned electrospun fibers. [29][30][31][32][33] Two most frequently adopted methods are: 1) using a high-speed rotating collector with a very sharp edge, [34][35][36] and 2) using two separated parallel electrodes. [37,38] A very high rotating speed (>3000 rpm) is necessary for the rotating collector method, which brings high requirements to the fabrication facilities and increases electricity consumption. Also, the necessary role of sharp edge further restricts the amount of highly aligned electrospun fibers that can be collected. The parallel electrode method, on the other hand, can only fabricate aligned electrospun fibers in a very limited length, typically on millimeter scale.Advances in functional fabrics enable the realization of wearable devices in the form factor of fibers that can be seamlessly adapted in our daily lives. For mechanical-related sensing and power generation, piezoelectric materials are particularly favorable because they can convert mechanical shape changes into electric outputs. Electrospinning is a widely applied technique to produce extended length of fiber-shaped piezoelectric devices. However, this versatile process normally results in randomly distributed fibers with poor electrical properties and limited response to mechanical stimuli. H...

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Electrospinning of very long and highly aligned fibers

Cited by 53 publications

References 32 publications

Fiber Scaffold Patterning for Mending Hearts: 3D Organization Bringing the Next Step

Fiber Scaffold Patterning for Mending Hearts: 3D Organization Bringing the Next Step

Elaboration and characterization of P3HT–PEO–SWCNT fibers by electrospinning technique

Highly Oriented Electrospun P(VDF‐TrFE) Fibers via Mechanical Stretching for Wearable Motion Sensing

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