A method for coating of hollow fiber membranes with calcium alginate

Yoo, Seung Mi; Ghosh, Raja

doi:10.1016/j.memsci.2018.04.044

Cited by 18 publications

(9 citation statements)

References 37 publications

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“…Furthermore, helpful methods to eliminate fouling can be, for example, heat and plasma treatment [ 4 , 34 , 35 , 36 , 37 ], coating or grafting of hydrophilic polymers onto membranes’ surfaces [ 33 , 35 , 38 , 39 , 40 , 41 , 42 , 43 ], or through the addition of hydrophilic pore precursors to a polymer solution or other admixture like nanoparticles [ 6 , 19 , 25 , 44 , 45 , 46 , 47 , 48 ]. The modification could be influenced by an increase of the hydraulic permeability and/or the hydrophilicity of membranes.…”

Section: Introductionmentioning

confidence: 99%

Chemical Degradation of PSF-PUR Blend Hollow Fiber Membranes—Assessment of Changes in Properties and Morphology after Hydrolysis

et al. 2021

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In this study, we focused on obtaining polysulfone-polyurethane (PSF-PUR) blend partly degradable hollow fiber membranes (HFMs) with different compositions while maintaining a constant PSF:PUR = 8:2 weight ratio. It was carried out through hydrolysis, and evaluation of the properties and morphology before and after the hydrolysis process while maintaining a constant cut-off. The obtained membranes were examined for changes in ultrafiltration coefficient (UFC), retention, weight loss, morphology assessment using scanning electron microscopy (SEM) and MeMoExplorer™ Software, as well as using the Fourier-transform infrared spectroscopy (FT-IR) method. The results of the study showed an increase in the UFC value after the hydrolysis process, changes in retention, mass loss, and FT-IR spectra. The evaluation in MeMoExplorer™ Software showed the changes in membranes’ morphology. It was confirmed that polyurethane (PUR) was partially degraded, the percentage of ester bonds has an influence on the degradation process, and PUR can be used as a pore precursor instead of superbly known polymers.

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Section: Introductionmentioning

confidence: 99%

Chemical Degradation of PSF-PUR Blend Hollow Fiber Membranes—Assessment of Changes in Properties and Morphology after Hydrolysis

et al. 2021

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“…Surface modification with proper material would increase the hydrophilicity to a greater extent. There are several hydrophilic polymers that have been used for surface coating: poly(vinyl alcohol) [ 18 ], polydopamine [ 14 , 19 ], sericin [ 20 ], alginate [ 21 ] and tannic acid (TA) [ 22 , 23 ]. Compared with other hydrophilic polymers, the TA-FeIII complex has better antifouling and bio-inspired adhesive capability [ 24 , 25 ].…”

Section: Introductionmentioning

confidence: 99%

Using Tannic-Acid-Based Complex to Modify Polyacrylonitrile Hollow Fiber Membrane for Efficient Oil-In-Water Separation

et al. 2023

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Separating oil from water allows us to reuse both fluids for various applications, leading to a more economical process. Membrane separation has been evidenced as a cost-effective process for wastewater treatment. A hollow fiber membrane made of polyacrylonitrile (PAN) is an excellent choice for separating oil from water because of its superior chemical resistance. Its low antifouling ability, however, reduces the effectiveness of its separation. Hence, in this study, we used tannic acid (TA) and FeIII complex to modify the surface of the PAN hollow fiber membrane. To improve membrane performance, different reaction times were investigated. The results demonstrate that even when the TA-FeIII covered the pores of the PAN membrane, the water flux remained constant. However, when an emulsion was fed to the feed solution, the flux increased from 50 to 66 LMH, indicating low oil adhesion on the surface of the modified membrane. When compared to the pristine membrane, the modified membrane had superior antifouling and reusability. As a result, the hydrophilic TA-FeIII complex on PAN surface improves overall membrane performance.

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“…Biodegradable materials play a crucial role in the possible application of these ions for bone promotion, as they serve as a carrier and release substrate, thereby modulating the ions' osteogenic properties. The biodegradable materials used for ions delivery have been assayed in multiple morphologies as scaffolds [14,15], hydrogels [16], micro and nanoparticles [17] and membranes [18], among others.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Ca2+ and Mg2+ Ions Loaded at Degradable PLA Membranes on the Proliferation and Osteoinduction of MSCs

et al. 2022

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Biodegradable membranes, including Polylactic acid (PLA)-based membranes, are commonly used in bone-tissue-related clinical procedures as biointerface to promote bone tissue regeneration. Calcium (Ca2+) and Magnesium (Mg2+) ions have been related to the promotion of osteogenesis, where the PLA membranes could be used as carrier and delivery substrate for them to provide osteogenic properties to this material. For this aim, a new ion delivery system based on biodegradable PLA membranes loaded with Mg and hydroxyapatite (HA) particles has been processed by the combination of tape casting and colloidal route. Materials characterization shows that the incorporation of Mg and HA particles changes the surface and hydrophobicity of the PLA membrane, and the in vitro degradation test shows Mg2+ and Ca2+ ion release and occasionally the precipitation of different ion species onto the membrane surface. Mouse and human Mesenchymal Stem Cells (MSC) were used to define the biocompatibility and bioactivity of these PLA membrane composites, and data indicated Mg2+ promotes cell proliferation and potentiates osteoinductive signals, while Ca2+ induces the expression of ALP osteogenic marker in human MSCs. Biodegradable PLA membranes loaded with Mg and HA particles is a promising new ion delivery system of Mg2+ and Ca2+ ions that provides osteogenic signals and works as functional biointerface interfaces with bone tissues.

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A method for coating of hollow fiber membranes with calcium alginate

Cited by 18 publications

References 37 publications

Chemical Degradation of PSF-PUR Blend Hollow Fiber Membranes—Assessment of Changes in Properties and Morphology after Hydrolysis

Chemical Degradation of PSF-PUR Blend Hollow Fiber Membranes—Assessment of Changes in Properties and Morphology after Hydrolysis

Using Tannic-Acid-Based Complex to Modify Polyacrylonitrile Hollow Fiber Membrane for Efficient Oil-In-Water Separation

The Effect of Ca2+ and Mg2+ Ions Loaded at Degradable PLA Membranes on the Proliferation and Osteoinduction of MSCs

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