Electrospun Nanofibrous Filtration Membranes for Heavy Metals and Dye Removal

Bagbi, Yana; Pandey, Arvind Kumar; Solanki, Pratima R.

doi:10.1016/b978-0-12-813926-4.00015-x

Cited by 28 publications

(11 citation statements)

References 58 publications

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“…Therefore, as the electrical conductivity increases, the diameter of the resulting fibers and the number of beads decrease. In this study, as expected, it was found that the diameter of the ultrafine fibers decreased with the decrease in the viscosity of the polymeric solutions, a desired characteristic that is in line with what was described in [54]. A similar mean diameter of zein fibers was reported by Dashdorj et al [55], who found a value of 500 nm, and according Chen et al [56], they can be classified as ultrafine fibers.…”

Section: Morphology Of Ultrafine Fiberssupporting

confidence: 91%

Recovery of Bioactive Compounds from Jaboticaba Peels and Application into Zein Ultrafine Fibers Produced by Electrospinning

et al. 2020

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This work focused on the recovery bioactive compounds from jaboticaba peels and to develop ultrafine fibers from zein incorporated with the jaboticaba extract by electrospinning technique. Jaboticaba peel extracts (JPE) were obtained by maceration according a central composite rotational design (CCDR) and characterized with respect to total phenolic content (TP), antioxidant activity (AA) and total anthocyanin (TA). The optimal condition for the extraction was obtained using a desirability function in order to maximize the presence of bioactive compounds. Under these conditions the amount of cyanidin-3-glucoside (Cn-3-Glu) and the antimicrobial inhibition (AI) of E. coli were evaluated. Ultrafine fibers were obtained by electrospinning technique using zein in an aqueous ethanol as solvent and freeze-dried JPE at different concentrations (1.7% and 3.3%) to produce a composite membrane. The apparent viscosity and electrical conductivity of the polymer solutions, as well as the morphology, thermal stability and functional groups of the ultrafine fibers, were evaluated. The optimal conditions for extraction were 88 °C and pH 1. Under these conditions, a high amount of Cn-3-Glu was obtained (718.12 mg 100 g−1), along with 22.2% antimicrobial inhibition against E. coli. The addition of JPE into composite membranes did not affect the morphology of fibers, which presented a homogeneous and continuous format. Therefore, fibers containing JPE showed interesting characteristics for the food packaging industry.

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Section: Morphology Of Ultrafine Fiberssupporting

confidence: 91%

Recovery of Bioactive Compounds from Jaboticaba Peels and Application into Zein Ultrafine Fibers Produced by Electrospinning

et al. 2020

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“…In the following paper of the same authors [34], the comparison of melt electrospun PHB-PLA fibers and molded films with analogous compositions has been presented to elucidate the diffusivity impact on drug release features. In addition to the usage of electrospun fibers in biomedicine as well as at development of innovative packaging materials, they are starting to be actively used for the development of innovative absorbents for pollutants removing [35]. Therefore, a current tendency to production of ecologically safe high-selectivity nanofibrillar porous sorbents on the basis of PLA-PHB compositions obtained by electrospinning for recovery of oil pollutants from wastewater is of great practical interest.…”

Section: Introductionmentioning

confidence: 99%

Biodegradable Polylactide–Poly(3-Hydroxybutyrate) Compositions Obtained via Blending under Shear Deformations and Electrospinning: Characterization and Environmental Application

et al. 2020

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Compositions of polylactide (PLA) and poly(3-hydroxybutyrate) (PHB) thermoplastic polyesters originated from the nature raw have been obtained by blending under shear deformations and electrospinning methods in the form of films and nanofibers as well as unwoven nanofibrous materials, respectively. The degrees of crystallinity calculated on the base of melting enthalpies and thermal transition temperatures for glassy state, cold crystallization, and melting point for individual biopolymers and ternary polymer blends PLA-PHB- poly(ethyleneglycol) (PEG) have been evaluated. It has been shown that the mechanical properties of compositions depend on the presence of plasticizers PEG with different molar masses in interval of 400–1000. The experiments on the action of mold fungi on the films have shown that PHB is a fully biodegradable polymer unlike PLA, whereas the biodegradability of the obtained composites is determined by their composition. The sorption activity of PLA–PHB nanofibers and unwoven nanofibrous PLA–PHB composites relative to water and oil has been studied and the possibility of their use as absorbents in wastewater treatment from petroleum products has been demonstrated.

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“…The applied voltage is a critical factor in electrospinning for spinnability. This is because nano ber production only happens when the applied voltage exceeds the threshold voltage [40]. In the case of voltage, levels equal or above 15.5 kV showed better improvement.…”

Section: Resultsmentioning

confidence: 96%

Preparation and Characterization of Sodium Alginate Polymeric Scaffold by Electrospinning Method for Skin Tissue Engineering Application

Jadbabaei

Naiemi

Ebadi‐Dehaghani

et al. 2021

Preprint

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Sodium alginate (SA) approved its high potential in tissue engineering and regenerative medicine. One of the main weaknesses of this polysaccharide is its low spinnability which nanofiber based scaffolds are the interest of scientists in biomedical engineering. The main aim of this study was to improve the spinnability of SA in combination with polyvinyl alcohol (PVA). It was also tried to optimize the main parameters in electrospinning of the optimized SA;PVA ratio including voltage, flow rate, and working space. To aim this, Response surface methodology under central composite design was employed to design the experiments scientifically. The final nanofiber scaffolds were studied using scanning electron microscopy, Fourier transform infrared spectroscopy, degradability, swelling, tensile strength, porosity, nanofiber diameter, contact angle, and cytotoxicity. Based on the results, the best ratio for SA:PVA was 1:6.5. The solution with this concentration was spinnable in various values for the process parameters. The fabricated scaffolds under these conditions revealed good physical, chemical, mechanical, and biological features. L929 cell lines revealed high viability during 48 h of culture. The results revealed the uniform and homogeneous nanofibers with the regular size distribution (166 nm) were obtained at 30 kV, 0.55 µl/h, and 12.5 cm. To sum up, the optimized ratio under the reported conditions can be a good biologically compatible candidate for skin tissue engineering.

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Electrospun Nanofibrous Filtration Membranes for Heavy Metals and Dye Removal

Cited by 28 publications

References 58 publications

Recovery of Bioactive Compounds from Jaboticaba Peels and Application into Zein Ultrafine Fibers Produced by Electrospinning

Recovery of Bioactive Compounds from Jaboticaba Peels and Application into Zein Ultrafine Fibers Produced by Electrospinning

Biodegradable Polylactide–Poly(3-Hydroxybutyrate) Compositions Obtained via Blending under Shear Deformations and Electrospinning: Characterization and Environmental Application

Preparation and Characterization of Sodium Alginate Polymeric Scaffold by Electrospinning Method for Skin Tissue Engineering Application

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