Electrospinning of Soy Protein Fibers and their Compatibility with Synthetic Polymers (original) (raw)
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The paper covers aspects of the technology of fibre electrospinning for the production of nonwoven fabrics for various application areas. The conditions of forming nano- and microfibres from solutions of collagen hydrolyzate and dibutyrylchitine were studied as well as polymer-polymer complexes based on polyacrylic acid, polyvinyl alcohol and polyethylene oxide. A comparative analysis of different methods of electrospinning – electrocapillary, electric and NanospiderTM , was conducted. Promising application areas of non-woven fabrics in medicine sanitation as well as for clothing and footwear production are shown.
Materials
Fibrous materials composed of core–sheath fibers from poly(ethylene oxide) (PEO), beeswax (BW) and 5-nitro-8-hydroxyquinoline (NQ) were prepared via the self-organization of PEO and BW during the single-spinneret electrospinning of a homogeneous blend solution of the partners. Additionally, the application of the same approach enabled the preparation of fibrous materials composed of core–double sheath fibers from PEO, poly(L-lactide) (PLA) and NQ or 5-chloro-7-iodo-8-hydroxyquinoline (CQ), as well as from PEO, poly(ε-caprolactone) (PCL) and NQ. The consecutive selective extraction of BW and of the polyester with hexane and tetrahydrofuran, respectively, evidenced that core–double sheath fibers from PEO/polyester/BW/drug consisted of a PEO core, a polyester inner sheath and a BW outer sheath. In order to evaluate the possibility of the application of fibrous materials from PEO/BW/NQ, PEO/PLA/BW/NQ, PEO/PCL/BW/NQ and PEO/PLA/BW/CQ for plant protection, microbiological studies were per...
Characterization of PVC‐soy protein nonwoven mats prepared by electrospinning
AIChE Journal, 2018
Poly(vinyl chloride) (PVC) is one of the most common polymers used in the water treatment industry due to outstanding hydrophobicity and mechanical strength. Generating eco-friendly membranes derived from natural polymers has gained attention, particularly for water purification and producing potable water. In this study, nonwoven mats were prepared by electrospinning polymer solutions. Mats with a tailorable hydrophilicity were prepared by electrospinning solution mixtures containing PVC and an eco-friendly, hydrophilic natural polymer: soy protein. As the viscosity of the solution decreased, the average fiber diameter and average pore surface area reduced. However, when the PVC concentration remained constant and the soy protein concentration increased, the viscosity decreased and average fiber diameter became reduced, while the average pore diameter remained relatively constant. The mats with volumetric ratios of PVC:soy protein of 85:15 and 80:20 displayed optimal characteristics suitable for mat fabrication based on the fiber diameter and average pore surface area.
Materials Science and Engineering: C, 2019
Electrospun (bio)polymeric fibers have attracted widespread interest as functional materials with suitable morphology and properties for their use as tissue engineering scaffolds and/or wound dressings. The fibrous/porous morphology of this type of materials promotes the adhesion and proliferation of tissue cells, but on the other hand, pathogenic microorganisms unfortunately can also be attached to the fibers, thus leading to serious infections and consequently to the immediate removal of the scaffolds or wound dressings, which may imply greater tissue damage. In this context, this review addresses the more recent approaches based on electrospinning and related techniques for developing composite (bio)polymeric fibers with tailored antimicrobial properties either by using mere electrospinning for the incorporation of well-defined antimicrobial nanoparticles (silver, gold, titanium dioxide, zinc oxide, copper oxide, etc.) or by resorting to the combination of electrospraying and electrospinning for the generation of nanoparticle-coated fibers, as well as coaxial electrospinning for obtaining fibers with nanoparticle-rich surface.
Bioactive Applications for Electrospun Fibers
Polymer Reviews, 2016
Electrospinning is a versatile technique providing highly tunable nanofibrous nonwovens. Many biomedical applications have been developed for nanofibres, among which the production of antimicrobial mats stands out. The production of scaffolds for tissue engineering, fibres for controlled drug release or active wound dressings are active fields of research exploiting the possibilities offered by electrospun materials. The fabrication of materials for active food packaging or membranes for environmental applications is also reviewed. We attempted to give an overview of the most recent literature related with applications in which nanofibres get in contact with living cells and develop a nano-bio interface.
2014
Currently is observed a great interest in the use of bioactive natural products for modification and functionalization of fibers to produce antimicrobial protective medical textiles. One of the areas is related to the ability to obtain electrospun nanofibers with potential bioactive properties. The aim of this study was to produce and characterize nanofibers from an aqueous solution of poly (vinyl alcohol (PVA) and beeswax (BW). To investigate the possibility of obtaining nanofibers with addition of beeswax is done in two forms-as solution and micro emulsion. Beeswax has a rich chemical composition, a mixture of proteins, vitamins, trace elements, esters, fatty acids, carbohydrates, lipids. Itself smoothies and moisturizes the skin, helps in the treatment recovery of burned skin, slows aging and has antibacterial activity. The fibers were produced in laboratory conditions with single nozzle spindraw device. The nanofibers are based on 9% PVA solution and 2% (by weight) beeswax as additive. Аs a pad for the electrospun nanofibers has been used thermobonded medical nonwoven textile. The structure of the nanofiber layers is investigated by scanning electron microscope (SEM) and atom force microscope (AFM). The fabrication of poly (vinyl alcohol) non-woven mats by electrospinning of polymer solutions, containing various concentrations of cationic, anionic amphoteric and nonionic surfactants is a complicated process. The type of additive which is used for the functionalization of the fibers changes an electroconductivity, surface tension, viscosity, therefore rheological method for controlling the process was used. The properties of the electrospun materials like air permeability, water vapor permeability, mass and thickness are examined as well. The average diameters of the produced bicomponent fibers were in the range 100-420 nm. Water-resistant nanofibrous mats were obtained by thermal crosslinking at 100 C o for 12 h. Fourier transformed infrared spectroscopy (FTIR) showed that PVA/BW nanofibers are present in a stable form. A further project employs to examine the received bilayer material to determine their biological activity and their potential use as plasters for regeneration of skin injuries.
Electrospun Protein Nanofibers and Their Food Applications
Muğla journal of science and technology, 2020
Electrospun nanofibers with their large surface area, high porosity, small pore sizes, and ability of the high loading of active agents possess many structural and functional advantages for food applications. Proteins play significant roles in physicochemical and structural properties in foods. There has been a great interest in using proteins for the fabrication of nanofibers through electrospinning technique. Due to their molecular weight, most of the proteins are non-spinnable alone however; their spinnability can be enhanced by the incorporation of food-grade biocompatible polymers. In this review, the basics of the electrospinning technique were introduced first, followed by detailed information about electrospun nanofibers formed using plant and animal proteins. Common polymers blended with proteins to enhance their spinnability were also discussed. It the last part, the use of electrospun nanofibers in various food applications such as encapsulation of bioactive components, enzyme immobilization, and food packaging was emphasized.
Electrospun Protein Nanofibers and Their Potential Food Applications
Mugla Journal of Science and Technology, 2020
Electrospun nanofibers with their large surface area, high porosity, small pore sizes, and ability of the high loading of active agents possess many structural and functional advantages for food applications. Proteins play significant roles in physicochemical and structural properties in foods. There has been a great interest in using proteins for the fabrication of nanofibers through electrospinning technique. Due to their molecular weight, most of the proteins are non-spinnable alone however; their spinnability can be enhanced by the incorporation of food-grade biocompatible polymers. In this review, the basics of the electrospinning technique were introduced first, followed by detailed information about electrospun nanofibers formed using plant and animal proteins. Common polymers blended with proteins to enhance their spinnability were also discussed. It the last part, the use of electrospun nanofibers in various food applications such as encapsulation of bioactive components, enzyme immobilization, and food packaging was emphasized.
Zastita materijala, 2015
Materials with potentially bioactive properties-preparation and characterization of electrospun poly(vinyl alcohol)/beeswax fiber web Currently is observed a great interest in the use of bioactive natural products for modification and functionalization of fibers to produce antimicrobial protective medical textiles. One of the areas is related to the ability to obtain electrospun nanofibers with potential bioactive properties. The aim of this study was to produce and characterize nanofibers from an aqueous solution of poly (vinyl alcohol (PVA) and beeswax (BW). To investigate the possibility of obtaining nanofibers with addition of beeswax is done in two forms-as solution and micro emulsion. Beeswax has a rich chemical composition, a mixture of proteins, vitamins, trace elements, esters, fatty acids, carbohydrates, lipids. Itself smoothies and moisturizes the skin, helps in the treatment recovery of burned skin, slows aging and has antibacterial activity. The fibers were produced in laboratory conditions with single nozzle spin-draw device. The nanofibers are based on 9% PVA solution and 2% (by weight) beeswax as additive. Аs a pad for the electrospun nanofibers has been used thermobonded medical nonwoven textile. The structure of the nanofiber layers is investigated by scanning electron microscope (SEM) and atom force microscope (AFM). The fabrication of poly (vinyl alcohol) non-woven materials by electrospinning of polymer solutions, containing various concentrations of cationic, anionic amphoteric and nonionic surfactants is a complicated process. The type of additive which is used for the functionalization of the fibers changes an electroconductivity, surface tension, viscosity, therefore rheological method for controlling the process was used. The properties of the electrospun materials like air permeability, water vapor permeability, mass and thickness are examined as well. The average diameters of the produced bicomponent fibers were in the range 100-420 nm. Water-resistant nanofibrous materials were obtained by thermal crosslinking at 100 o C for 12 h. Fourier transformed infrared spectroscopy (FTIR) showed that PVA/BW nanofibers are present in a stable form. A further project employs to examine the received bilayer material to determine their biological activity and their potential use as plasters for regeneration of skin injuries.