High-flux microfiltration filters based on electrospun polyvinylalcohol nanofibrous membranes

Liu, Yang; Wang, Ran; Ma, Hongyang; Hsiao, Benjamin S.; Chu, Benjamin

doi:10.1016/j.polymer.2012.11.064

Cited by 135 publications

(101 citation statements)

References 33 publications

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“…They have a high porosity and a high specific surface, and are thus commonly used in many applications, including wound dressings [29,30], release control [31], tissue engineering scaffolds [32], filtrations in environmental applications [33], metal ion adsorption [34], battery separator [35], and bio-sensors [36]. In particular, the application of wound dressings involves a complicated process of wound healing where the cell extracellular matrix components and growth factors interact.…”

Section: Introductionmentioning

confidence: 99%

Biomedical Applications of Antibacterial Nanofiber Mats Made of Electrospinning with Wire Electrodes

2016

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Twisted stainless steel wires are used as wire electrodes for electrospinning the polyvinyl alcohol (PVA)/zinc citrate nanofiber mats. The morphology and diameter of the nanofibers in PVA/zinc citrate nanofiber mats are evaluated. We measured the antibacterial efficacy against Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) of the nanofiber mats. We also examined the cell adhesion affinity of mammalian tissue culture cells on these nanofiber mats. Our results indicate that an increase in zinc citrate increases the viscosity and electrical conductivity of PVA solution. In addition, increasing zinc citrate results in a smaller diameter of nanofibers that reaches below 100 nm. According to the antibacterial test results, increasing zinc citrate enlarges the inhibition zone of S. aureus but only has a bacteriostatic effect against E. coli. Finally, cell adhesion test results indicate that all nanofiber mats have satisfactory cell attachment regardless of the content of zinc citrate.

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Section: Introductionmentioning

confidence: 99%

Biomedical Applications of Antibacterial Nanofiber Mats Made of Electrospinning with Wire Electrodes

2016

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“…For example, as listed in Table 13.2, these polymers included nylon-6 [20,21], polyacrylonitrile (PAN) [22,23], polyethylene terephthalate (PET) [24], polyvinyl alcohol (PVA) [25], polystyrene (PS) [26,27], polyvinylidene fluoride (PVDF) [28,29], polyethersulfone (PES) [30], polyimides (PI) [31,32], polyethylene oxide (PEO) [33], polyurethanes (PU) [34], polycarbonates (PC) [35], polycaprolactone (PCL) [36], polybenzimidazole (PBI) [37,38], polyvinylpyrrolidone (PVP) [39], polytrimethylene terephthalate (PTT) [40], polyvinyl chloride (PVC) [41], polymethylmethacrylate (PMMA) [42], hydroxypropyl cellulose (HPC) [43], polyglycolic acid (PGA) [44], polyhydroxybutyrate (PHB) [45], cellulose acetate (CA) [46,47] chemical properties, copolymers and block polymers have been utilized to achieve desired membrane properties in the nanofiber form. Natural biomacromolecules have also been used for electrospinning into nanofibers, These polymers include chitosan [48], chitin [49], collagen [50], gelatin [51], hyaluronic acid [52,53], lipase, silk, and DNA [54].…”

Section: Materials In Electrospinningmentioning

confidence: 99%

“…Liu and co-workers prepared high-flux microfiltration filters made of PVA electrospun nanofibers [25]. The filters were fabricated by electrospinning of PVA onto a nonwoven support and followed by chemical cross-linking with glutaraldehyde in acetone.…”

Section: Mf Filtermentioning

confidence: 99%

Electrospun Nanofibrous Membranes for Liquid Filtration

Wang

Hsiao

Chu

2014

Nanostructure Science and Technology

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Liquids are essential for most of the lives and activities on earth, where liquid filtration is an important tool to remove undesired suspended solids, emulsified particles, dissolved molecules, and ions from liquids by separating the permeate from the unwanted impurities through filters. Electrospun nanofibrous membranes (ENMs) have been developed as filtration media having unique advantages over traditional membranes, due to high porosity, interconnected pore structures, large surface-to-volume ratio with capability for chemical/physical functionalization, and cost-effectiveness. The new fibrous membrane format has been used in many applications, including filtration, (membrane) distillation, and pervaporation.

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“…Commercially available polymer films have been widely used in various industrial applications, such as optical films, membranes, adhesive tapes and so on Schmidegg et al, 2006;Khayet et al, 2002;Liu et al, 2013;Townsend et al, 2011). The film properties depend substantially on the film formation processes, because polymer structures in the film may be dramatically changed by the processing conditions.…”

Section: Introductionmentioning

confidence: 99%

Development of a simultaneous measurement system for SAXS–WAXD and the thickness of coating films during film formation by solvent evaporation

et al. 2014

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A system for the simultaneous measurement of small-angle X-ray scattering and wide-angle X-ray diffraction (SAXS-WAXD) and the thickness of a coating film, obtained with an automatic coater, during film formation has been developed. The system was installed on beamline BL03XU at SPring-8. As model specimens, poly(methyl methacrylate)-b-poly(n-butyl acrylate)-b-poly-(methyl methacrylate) (PMMA-b-PnBA-b-PMMA) triblock copolymers with different compositions were used to investigate the film formation process during solvent evaporation. First of all, the data correction methods were examined for the coating films during solvent evaporation. Since the scattering invariant was affected by the scattering volume and the absorption of X-rays by the solvent and the copolymer during drying, the scattering invariant should be corrected for the film width and the X-ray absorption of the sample. The polymer concentration was estimated from the thickness of the coating film during solvent evaporation, while the X-ray absorption was evaluated by using the X-ray linear absorption coefficients of the solvent and the copolymer. The results showed that the correction of the scattering invariant is crucial for an exact description of the film formation process during solvent evaporation.

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High-flux microfiltration filters based on electrospun polyvinylalcohol nanofibrous membranes

Cited by 135 publications

References 33 publications

Biomedical Applications of Antibacterial Nanofiber Mats Made of Electrospinning with Wire Electrodes

Biomedical Applications of Antibacterial Nanofiber Mats Made of Electrospinning with Wire Electrodes

Electrospun Nanofibrous Membranes for Liquid Filtration

Development of a simultaneous measurement system for SAXS–WAXD and the thickness of coating films during film formation by solvent evaporation

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