Self-assembly of a three-dimensional fibrous polymer sponge by electrospinning

Sun, Baode; Long, Yun‐Ze; Yu, Fei; Li, Mengmeng; Zhang, Hong-Di; Li, Wenjing; Xu, Tianxiang

doi:10.1039/c2nr11782g

Cited by 127 publications

(133 citation statements)

References 15 publications

(13 reference statements)

Supporting

Mentioning

130

Contrasting

Order By: Relevance

“…In some cases, single fibers can carry opposite charges in different regions depending on their proximity to the collector plate. The regions of a fiber close to the collector can carry positive charges and be repulsed by the collector, while the fiber ends remain negatively charged and are attracted to the collector 38 . Consequently, fibers are collected onto the plate in multiple orientations, resulting in loose and fluffy 3D scaffolds ( Supplementary Fig.…”

Section: Fabrication Of 3d Pvdf-hfp/pedot Nfsmentioning

confidence: 99%

Wearable high-performance pressure sensors based on three-dimensional electrospun conductive nanofibers

2018

View full text Add to dashboard Cite

Polymer-based pressure sensors play a key role in realizing lightweight and inexpensive wearable devices for healthcare and environmental monitoring systems. Here, conductive core/shell polymer nanofibers composed of poly (vinylidene fluoride-co-hexafluoropropene) (PVDF-HFP)/poly(3,4-ethylenedioxythiophene) (PEDOT) are fabricated using three-dimensional (3D) electrospinning and vapor deposition polymerization methods, and the resulting sponge-like 3D membranes are used to create piezoresistive-type pressure sensors. Interestingly, the PEDOT shell consists of well-dispersed spherical bumps, leading to the formation of a hierarchical conductive surface that enhances the sensitivity to external pressure. The sponge-like 3D mats exhibit a much higher pressure sensitivity than the conventional electrospun 2D mats due to their enhanced porosity and pressure-tunable contact area. Furthermore, large-area, wireless, 16 × 10 multiarray pressure sensors for the spatiotemporal mapping of multiple pressure points and wearable bands for monitoring blood pressure have been fabricated from these 3D mats. To the best of our knowledge, this is the first report of the fabrication of electrospun 3D membranes with nanoscopically engineered fibers that can detect changes in external pressure with high sensitivity. The developed method opens a new route to the mass production of polymer-based pressure sensors with high mechanical durability, which creates additional possibilities for the development of human-machine interfaces.

show abstract

Section: Fabrication Of 3d Pvdf-hfp/pedot Nfsmentioning

confidence: 99%

Wearable high-performance pressure sensors based on three-dimensional electrospun conductive nanofibers

2018

View full text Add to dashboard Cite

show abstract

“…The jet is accelerated toward the grounded collector and produces ultrathin fibers in the form of nonwoven mats. 108,109 In the past decade, besides polymeric materials, [108][109][110][111][112][113] inorganic fibers 114-116 also can be fabricated by electrospinning and calcinating. The electrospun fibers have been developed as a good potential candidate in many fields, such as tissue engineering, drug release, nano-sensors, energy applications, biochips, and catalyst supports.…”

Section: Assembly By Electrospinningmentioning

confidence: 99%

Recent advances in large-scale assembly of semiconducting inorganic nanowires and nanofibers for electronics, sensors and photovoltaics

et al. 2012

Self Cite

View full text Add to dashboard Cite

Semiconducting inorganic nanowires (NWs), nanotubes and nanofibers have been extensively explored in recent years as potential building blocks for nanoscale electronics, optoelectronics, chemical/biological/ optical sensing, and energy harvesting, storage and conversion, etc. Besides the top-down approaches such as conventional lithography technologies, nanowires are commonly grown by the bottom-up approaches such as solution growth, template-guided synthesis, and vapor-liquid-solid process at a relatively low cost. Superior performance has been demonstrated using nanowires devices. However, most of the nanowire devices are limited to the demonstration of single devices, an initial step toward nanoelectronic circuits, not adequate for production on a large scale at low cost. Controlled and uniform assembly of nanowires with high scalability is still one of the major bottleneck challenges towards the materials and device integration for electronics. In this review, we aim to present recent progress toward nanowire device assembly technologies, including flow-assisted alignment, Langmuir-Blodgett assembly, bubble-blown technique, electric/magnetic-field-directed assembly, contact/roll printing, planar growth, bridging method, and electrospinning, etc. And their applications in high-performance, flexible electronics, sensors, photovoltaics, bioelectronic interfaces and nano-resonators are also presented.

show abstract

“…To obtain more efficacious release systems for highly soluble drugs, complex fiber arrangements, such as coaxial fibers and threedimensional (3D) architectures, can be obtained using specific experimental conditions [9,23,24]. In coaxial electrospinning, two different polymer solutions are simultaneously pumped through a coaxial capillary and the drug is directly incorporated in the core, which remains protected by the shell.…”

Section: Introductionmentioning

confidence: 99%

Electrospun nanofibers of polyCD/PMAA polymers and their potential application as drug delivery system

Oliveira

Suárez

Rocha

et al. 2015

Materials Science and Engineering: C

View full text Add to dashboard Cite

Herein, we used an electrospinning process to develop highly efficacious and hydrophobic coaxial nanofibers based on poly-cyclodextrin (polyCD) associated with poly(methacrylic acid) (PMAA) that combines polymeric and supramolecular features for modulating the release of the hydrophilic drug, propranolol hydrochloride (PROP). For this purpose, polyCD was synthesized and characterized, and its biocompatibility was assessed using fibroblast cytotoxicity tests. Moreover, the interactions between the guest PROP molecule and both polyCD and βCD were found to be spontaneous. Subsequently, PROP was encapsulated in uniaxial and coaxial polyCD/ PMAA nanofibers. A lower PROP burst effect (reduction of approximately 50%) and higher modulation were observed from the coaxial than from the uniaxial fibers. Thus, the coaxial nanofibers could potentially be a useful strategy for developing a controlled release system for hydrophilic molecules.

show abstract

Self-assembly of a three-dimensional fibrous polymer sponge by electrospinning

Cited by 127 publications

References 15 publications

Wearable high-performance pressure sensors based on three-dimensional electrospun conductive nanofibers

Wearable high-performance pressure sensors based on three-dimensional electrospun conductive nanofibers

Recent advances in large-scale assembly of semiconducting inorganic nanowires and nanofibers for electronics, sensors and photovoltaics

Electrospun nanofibers of polyCD/PMAA polymers and their potential application as drug delivery system

Contact Info

Product

Resources

About