Electrospinning with dual collection rings

Dalton, Paul D.; Klee, Doris; Möller, Martin

doi:10.1016/j.polymer.2004.11.075

Cited by 245 publications

(138 citation statements)

References 15 publications

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“…Mandrel from an insulated material and copper-wired drum were also able to produce sub-micron fibre sheet with aligned structure [7,20]. Yarn with oriented and continuous microfibres has also been fabricated using a dual collection ring [21]. Aligned fibrous structure with improved mechanical properties was achieved using rotary jet spinning, in which both centrifugal and electrostatic force enhance polymer crystallinity and molecular orientation [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Rotating Collector Design on Tensile Properties and Morphology of Electrospun Polycaprolactone Fibres

Anindyajati

Boughton

Ruys

2015

MATEC Web of Conferences

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Abstract. Electrospinning is a technique that can produce fibres in the nanoscale range. This process is useful for many applications, including fabrication of fibrous scaffolds for fibrocartilage tissue engineering. For this application, cell attachment and tissue development is influenced by fibre morphology and mechanical properties. This electrospinning study investigated the influence of rotating collector design on morphology and mechanical properties of electrospun polycaprolactone fibre. The experiment employed 4 mandrel designs: 1) full surface of aluminium; 2) with gap feature; 3) with gap feature and teflon support; 4) with gap feature and tape support. The highest elastic modulus was obtained from mandrel with gap and tape support, which was 24.6 MPa and significantly higher compared to fibres acquired from other collector designs. Fibre diameter attained was identical across the different collectors, ranging from 0.5 -2 µm. Gap introduction showed enhanced alignment in the resultant fibre. It can be concluded that fibre alignment and tensile properties can be improved by simply modifying the collector design. This improved fibre mat can be developed as a biomaterial for fibrocartilage tissue engineering scaffolds.

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Section: Introductionmentioning

confidence: 99%

The Effect of Rotating Collector Design on Tensile Properties and Morphology of Electrospun Polycaprolactone Fibres

Anindyajati

Boughton

Ruys

2015

MATEC Web of Conferences

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“…Previously, alignment has been accomplished through rotating collector drums [273,274], counter electrodes [275], and parallel auxiliary electrodes placed behind the deposition surface [276]. Variations of the latter include deposition in the gap between electrodes [277] and, moreover, deposition in the gap between collecting rings [278]. More recently, rastering during ES has created highly aligned fiber deposition [279].…”

Section: Es Fabrication Of Organic Micro-and Nano-fiber Devicesmentioning

confidence: 99%

Electrospinning for nano- to mesoscale photonic structures

et al. 2016

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Abstract:The fabrication of photonic and electronic structures and devices has directed the manufacturing industry for the last 50 years. Currently, the majority of small-scale photonic devices are created by traditional microfabrication techniques that create features by processes such as lithography and electron or ion beam direct writing. Microfabrication techniques are often expensive and slow. In contrast, the use of electrospinning (ES) in the fabrication of microand nano-scale devices for the manipulation of photons and electrons provides a relatively simple and economic viable alternative. ES involves the delivery of a polymer solution to a capillary held at a high voltage relative to the fiber deposition surface. Electrostatic force developed between the collection plate and the polymer promotes fiber deposition onto the collection plate. Issues with ES fabrication exist primarily due to an instability region that exists between the capillary and collection plate and is characterized by chaotic motion of the depositing polymer fiber. Material limitations to ES also exist; not all polymers of interest are amenable to the ES process due to process dependencies on molecular weight and chain entanglement or incompatibility with other polymers and overall process compatibility. Passive and active electronic and photonic fibers fabricated through the ES have great potential for use in light generation and collection in optical and electronic structures/ devices. ES produces fiber devices that can be combined with inorganic, metallic, biological, or organic materials for novel device design. Synergistic material selection and postprocessing techniques are also utilized for broad-ranging applications of organic nanofibers that span from biological to electronic, photovoltaic, or photonic. As the ability to electrospin optically and/or electronically active materials in a controlled manner continues to improve, the complexity and diversity of devices fabricated from this process can be expected to grow rapidly and provide an alternative to traditional resource-intensive fabrication techniques.

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“…Layer-by-layer depositions, multilayer mixing, dual-mandrel electrospinning and magnetic electrospinning have also been used to manufacture multidimensional scaffolds [44][45][46][47]. Elastomeric vascular graft-fabrication methods have been investigated for over 30 years.…”

Section: Electrospun Nanofibersmentioning

confidence: 99%