Optimization of the electrospinning conditions for preparation of nanofibers from polyvinylacetate (PVAc) in ethanol solvent

Park, Ju Young; Lee, In Hwa; Bea, Gwi Nam

doi:10.1016/j.jiec.2008.03.006

Cited by 113 publications

(56 citation statements)

References 12 publications

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“…It could be attributed to the decreasing of electrostatic density which in turn caused to fabricate the bead fibers with greater diameters in higher flow rates. Similar trends were presented by other researchers [35,36]. The effect of applied voltage on the formation of electrospun fibers in the range of 15 to 25 kV was shown in Figure 1b.…”

Section: Electrospinning Processsupporting

confidence: 88%

Fabrication of PEO/chitosan/PCL/olive oil nanofibrous scaffolds for wound dressing applications

et al. 2015

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Biodegradable polyethylene oxide (PEO)/chitosan (CS)/poly(ε-caprolactone) (PCL)/olive oil composite nanofibers were fabricated by electrospinning process. The prepared nanofibers were characterized using SEM and FTIR analysis. A response surface methodology based on Box-Behnken design (BBD) was used to predict the average diameter of electrospun nanofibers based on electrospinning parameters including voltage, flow rate and tip-collector distance. The optimum experimental average diameter of electrospun nanofibers was found to be 86 nm which was in good agreement with the predicted value by the BBD analysis (88 nm). In vitro release of olive oil incorporated PEO/CS/PCL/olive oil nanofibers demonstrated a rapid release of olive oil during the first 3 h which enhanced gradually afterwards. Good attachment, spreading, cell proliferation, as well as nontoxic behavior of PEO/CS/PCL/olive oil nanofibrous scaffolds on HDF fibroblast cells were proved by cytotoxicity studies. Furthermore, the high antibacterial activity of PEO/CS/PCL/olive oil composite nanofibers against Gram-negative bacteria E. coli and Gram-positive S. aureus was observed. This study suggests that the prepared PEO/CS/PCL/olive oil composite nanofibrous scaffolds could be used as an ideal patch for wound dressing applications.

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Section: Electrospinning Processsupporting

confidence: 88%

Fabrication of PEO/chitosan/PCL/olive oil nanofibrous scaffolds for wound dressing applications

et al. 2015

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“…Polyvinylpyrrolidone (PVP) along with polyvinyl alcohol (PVA) and polyethylene glycol (PEG) are vinyl polymers that are widely used to develop products of drug delivery media [15]. Moreover, PVP is a widely used hydrophilic polymer because it is nontoxic, electrospinnable, and soluble in water, and it also has good biocompatibility [16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Correlation between Structures and Antioxidant Activities of Polyvinylpyrrolidone/Garcinia mangostana L. Extract Composite Nanofiber Mats Prepared Using Electrospinning

Sriyanti

Edikresnha

Rahma

et al. 2017

Journal of Nanomaterials

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Nanofiber mats of polyvinyl(pyrrolidone) (PVP) with Garcinia mangostana extract (GME) as the encapsulated drug have been developed using electrospinning. SEM images of all electrospun PVP/GME composite nanofiber mats showed that they had similar and smooth morphology, no beads, and spindle shape. Its average diameter decreased and its surface area therefore increased with the decrease of its PVP concentration. The benefit of high surface area is obvious in drug delivery systems for poorly water-soluble drugs. Their FTIR spectra indicated that PVP and GME interacted intermolecularly via hydrogen bonds in the composite nanofiber mats. A conformational change in the C-H chain of PVP occurred in the composite nanofiber mats due to the intermolecular interactions. Their XRD patterns confirmed that they were amorphous because of amorphization during electrospinning. The XRD analyses also strengthened the FTIR studies; namely, GME and PVP formed intermolecular interactions in the electrospun composite nanofiber mats. As a result, GME as the encapsulated drug was molecularly dispersed in the electrospun PVP nanofiber matrix that functioned as a drug delivery system. From the 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay, the composite nanofiber mats exhibited very high antioxidant activities despite having been exposed to high voltage during electrospinning. Therefore, they are potential antioxidant products for food and pharmaceutics.

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“…The electrospinning method can be a major method for nano-sized fibers since it can minimize the spinning process time and cost and maximize convenience, quality and diameter control [8]. However, the electrospinning method has not been applied for porous silicon carbide nano-sized fibers.…”

Section: Introductionmentioning

confidence: 99%

Characterization of nanoporous β-SiC fiber complex prepared by electrospinning and carbothermal reduction

Lee¹,

Yun

Kim

et al. 2010

Res Chem Intermed

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The nanoporous b-silicon carbide (SiC) nano-sized fiber complex were made from precursors of various ratios with (SiO 2 ) as silicon source and polyacrylonitrile as carbon source by simple electrospinning method and economical carbothermal reduction. The prepared samples were characterized by SEM for surface shape, XRD for crystalline properties, TGA in air for oxygen resistance, and BET for porosity according to the precursor components (C/Si mol ratio). The samples with carbon ratio to silicon (C/Si) of five or more in the precursor showed the long fiber shape. Increasing the C/Si in the precursor solution tended to lead higher b-SiC crystalline and smaller crystallite size than low C/Si in the precursor solution because excess carbon could act as a dispersant and barrier to prevent neck growth or adhesion of SiC. The prepared samples have superior oxidation resistance as a whole. The increment of the C/Si leads to the increment of porosity. Also, it seems that the gaseous pore development of carbon during carbothermal reduction leads to mainly small pores (micro-or mesopores).

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Optimization of the electrospinning conditions for preparation of nanofibers from polyvinylacetate (PVAc) in ethanol solvent

Cited by 113 publications

References 12 publications

Fabrication of PEO/chitosan/PCL/olive oil nanofibrous scaffolds for wound dressing applications

Fabrication of PEO/chitosan/PCL/olive oil nanofibrous scaffolds for wound dressing applications

Correlation between Structures and Antioxidant Activities of Polyvinylpyrrolidone/Garcinia mangostana L. Extract Composite Nanofiber Mats Prepared Using Electrospinning

Characterization of nanoporous β-SiC fiber complex prepared by electrospinning and carbothermal reduction

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