Membrane Modification

Khulbe, K.C.; Matsuura, Takeshi

doi:10.1007/978-3-030-64183-2_4

Cited by 7 publications

(3 citation statements)

References 113 publications

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“…Maintaining low humidity during the drying process is crucial to prevent moisture from permeating the nanofiber membrane. High humidity could potentially cause phase separation or pore formation within the nanofibers, which should be avoided to preserve their integrity and desired properties [120,121].…”

Section: Post-electrospinning Process For Membrane Modificationmentioning

confidence: 99%

Nonwoven Electrospun Membranes as Tissue Scaffolds: Practices, Problems, and Future Directions

Shah,

Bhatta,

Sharma

et al. 2023

J. Compos. Sci.

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A flexible and dependable method that has been extensively employed to construct nanofibrous scaffolds that resemble the extracellular matrix made from polymeric materials is electrospinning (ES). ES is superior to other techniques because of its unique capacity to create nanofibers with a high surface-to-volume ratio, low cost, simplicity of setup, freedom in material choice, and ability to alter the surface attributes and usefulness of the nanofibers. However, the low productivity of nanofibrous membrane from conventional ES with the generation of tightly packed nanofibrous sheet-like two-dimensional membranes impedes cellular infiltration into scaffolds during tissue regeneration. Moreover, toxic organic solvents are desired for polymer dissolution for ES. Such solvents produce volatile organic compounds (VOCs) during electrospinning, which can degrade the indoor air quality of working place. Furthermore, when electrospun membranes containing traces of such VOCs are employed as tissue scaffolds, it may cause serious effect to cells and tissue. This justifies the need for alternative green solvents which are not only environmentally friendly, non-toxic, and low-cost but also biocompatible with medicinal values. Therefore, this review mainly focuses on summarizing the recent advances in ES machines, fabrication of three-dimensional (3D) spongy nanofibrous membrane, and introducing green solvent for polymer processing. Finally, based on the findings of the existing literature and our experience, this review mainly focuses on essential oils as future “greener” alternatives to current toxic solvents used in ES process.

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Section: Post-electrospinning Process For Membrane Modificationmentioning

confidence: 99%

Nonwoven Electrospun Membranes as Tissue Scaffolds: Practices, Problems, and Future Directions

Shah,

Bhatta,

Sharma

et al. 2023

J. Compos. Sci.

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“…Despite the existence of different methods such as adsorption, coagulation, distillation, boiling, and chlorination, today the use of membrane-based technologies has received more attention and this is due to the advantages of using membranes such as excellent performance, ease of processing and low operating costs. 5–10 The membrane is a semi-permeable, porous layer that removes contaminants from the water by mechanisms such as screening, diffusion, and interactions, and consequently purified water passes through it. Membranes used in the water treatment process, according to the material of the matrix, can be divided into two main categories: inorganic and polymeric membranes.…”

Section: Introductionmentioning

confidence: 99%

Utilization of a mixed matrix membrane modified by novel dendritic fibrous nanosilica (KCC-1-NH-CS₂) toward water purification

2022

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“…To address this issue, several studies have already investigated the enhancement of membranes by varying functional groups, combining polymers, adjusting cross-link density, including additives, etc. [ 12 ]. Additives can be included in the membrane matrix via different methods, such as: (i) coating and grafting, in which the membrane is modified after its fabrication; and (ii) blending, which includes the addition of the given material in the matrix during the fabrication process [ 6 , 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

Statistical Analysis of Synthesis Parameters to Fabricate PVDF/PVP/TiO2 Membranes via Phase-Inversion with Enhanced Filtration Performance and Photocatalytic Properties

et al. 2021

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Non-solvent induced phase-inversion is one of the most used methods to fabricate membranes. However, there are only a few studies supported by statistical analysis on how the different fabrication conditions affect the formation and performance of membranes. In this paper, a central composite design was employed to analyze how different fabrication conditions affect the pure water flux, pore size, and photocatalytic activity of polyvinylidene fluoride (PVDF) membranes. Polyvinylpyrrolidone (PVP) was used to form pores, and titanium dioxide (TiO2) to ensure the photocatalytic activity of the membranes. The studied bath temperatures (15 to 25 °C) and evaporation times (0 to 60 s) did not significantly affect the pore size and pure water flux of the membranes. The concentration of PVDF (12.5 to 17.5%) affected the viscosity, formation capability, and pore sizes. PVDF at high concentrations resulted in membranes with small pore sizes. PVP affected the pore size and should be used to a limited extent to avoid possible hole formation. TiO2 contents were responsible for the decolorization of a methyl orange solution (10−5 M) up to 90% over the period studied (30 h). A higher content of TiO2 did not increase the decolorization rate. Acidic conditions increased the photocatalytic activity of the TiO2-membranes.

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Membrane Modification

Cited by 7 publications

References 113 publications

Nonwoven Electrospun Membranes as Tissue Scaffolds: Practices, Problems, and Future Directions

Nonwoven Electrospun Membranes as Tissue Scaffolds: Practices, Problems, and Future Directions

Utilization of a mixed matrix membrane modified by novel dendritic fibrous nanosilica (KCC-1-NH-CS₂) toward water purification

Statistical Analysis of Synthesis Parameters to Fabricate PVDF/PVP/TiO2 Membranes via Phase-Inversion with Enhanced Filtration Performance and Photocatalytic Properties

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Membrane Modification

Cited by 7 publications

References 113 publications

Nonwoven Electrospun Membranes as Tissue Scaffolds: Practices, Problems, and Future Directions

Nonwoven Electrospun Membranes as Tissue Scaffolds: Practices, Problems, and Future Directions

Utilization of a mixed matrix membrane modified by novel dendritic fibrous nanosilica (KCC-1-NH-CS2) toward water purification

Statistical Analysis of Synthesis Parameters to Fabricate PVDF/PVP/TiO2 Membranes via Phase-Inversion with Enhanced Filtration Performance and Photocatalytic Properties

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Product

Resources

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Utilization of a mixed matrix membrane modified by novel dendritic fibrous nanosilica (KCC-1-NH-CS₂) toward water purification