BioMimic fabrication of electrospun nanofibers with high-throughput

He, Ji‐Huan; Liu, Yong; Xu, Lan; Yu, Jianyong; Sun, Gang

doi:10.1016/j.chaos.2007.11.028

Cited by 105 publications

(81 citation statements)

References 29 publications

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“…Consider a dragline assembly of diameter D consisting of many nanoscale fibres of diameter d. We can estimate the number of nanofibres in the assembly as Similarly to the Hall-Petch relationship, the nanofibre strength τ depends upon fibre diameter (in the range from a few to a few hundreds of nanometres) as This finding indicates the challenge of developing technologies capable of preparing nanofibres less than 50 nm in diameter as an assembly, and bubble electrospinning 14,15 can meet this challenge. Nanobubbles are observed during the spider spinning process shown in Fig 1 13 and, analogously, bubbles of polymer solutions can be used for nanofibre fabrication with high output; 13,[16][17][18][19] the minimum diameter achieved is as small as 50 nm. 19 Wool shows excellent warmth retention and other practical properties, possibly due to its hierarchical structure 20,21 (Fig.…”

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confidence: 89%

From spider spinning to bubble electrospinning and from the wool structure to carbon super-nanotubes

2010

Materials Science and Technology

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confidence: 89%

From spider spinning to bubble electrospinning and from the wool structure to carbon super-nanotubes

2010

Materials Science and Technology

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“…Nanobubbles are observed in Fig. 1 during the spider spinning process and bubbles of polymer solutions can be used for nanofiber fabrication with high output [8][9][10], the minimal diameter reached as small as 20 nm [10]. …”

Section: Spider-spinningmentioning

confidence: 99%

“…We design a new approach, the bubble electrospinning [8][9][10], to mimick the spider-spinning. The mechanism of the bubble electrospinning process is deceptively simple: in the absence of an electric field, the aerated solution forms various bubbles on the surface.…”

Section: Bubble-electrospinningmentioning

confidence: 99%

“…A spider silk [5,6] is actually a nanofiber assembly consisting of thousands of nanofibers, this distinct character can explain why it is of extraordinary strength and toughness. A possible mechanism in the spider-spinning might be the nanobubble dynamics [7], and the mechanism can be used to produce nanofibers with remarkable strength throughout using polymer bubbles [8][9][10]. This lecture will also give a brief introduction to E-infinity nanoscience and negative space.…”

Section: Introductionmentioning

confidence: 99%

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The Smaller, the Better: From the Spider-Spinning to Bubble-Electrospinning

2012

Acta Phys. Pol. A

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Nanobubble dynamics in the spider-spinning procedure is elucidated, and a theoretical model is established to show why spider drag-line silk protein assemblies have extraordinary strength and toughness. Suggested by the spider-spinning, a bubble electrospinning is investigated for mass production of nanofibers within diameters 20 nm. El Naschie's E-infinity theory is a universal theory for nanotechnology. It is concluded that smaller is the way to have excellent thermal and electric conductivity, in fact the smaller, the better.

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“…The spinning jet density was relatively high, approximately 250 times that of traditional single needle electro spinning production, but the uniformity of the fibers was poor. Designed a bubble electro spinning device inspired by the spider spinning process [22]. The diameter was approximately 50 nm at a lower voltage, but the diameter was volatile due to its susceptibility to the effect of bubble size.…”

Section: Introductionmentioning

confidence: 99%

Needleless Electrospun PVA/Chitosan Nano Fiber Membrane and its Antibacterial Property

Pan¹

2017

JTEFT

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Poly vinyl alcohol (PVA), which is a low-volatility, environmentally friendly and water-soluble polymer, is suitable for needleless electro spinning. Chitosan (CS) has drawn much attention due to its excellent antibacterial properties; however, it is hard to needle lessly electro spin CS alone. Thus, a certain amount of CS was added into the electro spinning solution to fabricate PVA nano fibers with antibacterial properties. In this paper, a needleless electro spinning device with spiral disk spinnerets was used to prepare PVA with different concentrations of CS nano fiber membranes. The effects of electro spinning parameters on process stability and anti-water-soluble processing were investigated. The results showed that the electro spinning process was associated with voltage, rotation speed and collection distance. The optimal electro spinning parameters are a voltage of 75 kV, a rotation speed of 11 rpm and a distance of 190 mm. From the comparison and analysis, 5% glutaraldehyde (GA) solution treatment is the superior method to increase the anti-water-solubility of the membrane. The antibacterial properties of PVA/CS nano fiber membranes with CS concentrations ranging from 1.0% to 1.5% were also investigated. The results showed that the inhibition rates of Escherichia coli (E. coli) were all above 99%, and those of Staphylococcus aureus (S. aureus) were all above 90%. Moreover, GA solution treatment has no effect on the antibacterial performance.

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BioMimic fabrication of electrospun nanofibers with high-throughput

Cited by 105 publications

References 29 publications

From spider spinning to bubble electrospinning and from the wool structure to carbon super-nanotubes

From spider spinning to bubble electrospinning and from the wool structure to carbon super-nanotubes

The Smaller, the Better: From the Spider-Spinning to Bubble-Electrospinning

Needleless Electrospun PVA/Chitosan Nano Fiber Membrane and its Antibacterial Property

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