Polyzwitterionic hydrogel coating for reverse osmosis membranes by concentration polarization-enhanced in situ “click” reaction that is applicable in modules

Laghmari, Soraya; Ulbricht, Mathias

doi:10.1016/j.memsci.2021.119274

Cited by 19 publications

(11 citation statements)

References 36 publications

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“…HMs and HCMs have been extensively used for a wide range of applications, such as tissue engineering, drug delivery, gas separation, ion exchange, and desalination. ,,,− Upcoming application fields include wastewater purification ,,, and oil–water separation. ,, Recently, various HM and HCM materials have been considered for dewatering applications. Herein, it is important to distinguish between HM and HCMs.…”

Section: Advances In Membrane Dewateringmentioning

confidence: 99%

“…In the literature, three major types of HCMs can be distinguished (Scheme ). In the most common geometry a hydrogel coating on a functioning membrane acts as an active layer. ,,,,,− In this geometry, the hydrogel functions as a selective separation layer ,, or as an antifouling coating. ,, Pore-filled membranes − are porous membranes filled with a hydrogel material. The hydrogel typically acts as a component that enables tuning the separation efficiency via external stimuli such as pH ,, and temperature. , …”

Section: Advances In Membrane Dewateringmentioning

confidence: 99%

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Advances in Membrane Separation for Biomaterial Dewatering

Diepenbroek,

Mehta,

Borneman

et al. 2024

Langmuir

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Biomaterials often contain large quantities of water (50−98%), and with the current transition to a more biobased economy, drying these materials will become increasingly important. Contrary to the standard, thermodynamically inefficient chemical and thermal drying methods, dewatering by membrane separation will provide a sustainable and efficient alternative. However, biomaterials can easily foul membrane surfaces, which is detrimental to the performance of current membrane separations. Improving the antifouling properties of such membranes is a key challenge. Other recent research has been dedicated to enhancing the permeate flux and selectivity. In this review, we present a comprehensive overview of the design requirements for and recent advances in dewatering of biomaterials using membranes. These recent developments offer a viable solution to the challenges of fouling and suboptimal performances. We focus on two emerging development strategies, which are the use of electric-field-assisted dewatering and surface functionalizations, in particular with hydrogels. Our overview concludes with a critical mention of the remaining challenges and possible research directions within these subfields.

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Section: Advances In Membrane Dewateringmentioning

confidence: 99%

Section: Advances In Membrane Dewateringmentioning

confidence: 99%

Advances in Membrane Separation for Biomaterial Dewatering

Diepenbroek,

Mehta,

Borneman

et al. 2024

Langmuir

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“…Whether the membrane is regenerated under strict conditions or directly replaced, the cost will be increased. The zwitterionic coating can avoid the accumulation of biofouling substances on the membrane surface, minimize pore blockage and biolayer formation to maintain the membrane flux [ 23 , 106 , 107 , 108 ]. Quilitzsch et al [ 104 ] prepared copolymers of 2-(dimethylamino) ethyl methacrylate (DMAEMA) and BMA, which can be adhered to the surface of the PES membrane by using hydrophobic interaction as a co-initiator layer.…”

Section: Biomedical Applications Of Zwitterionic Hydrogelsmentioning

confidence: 99%

“…Freger et al [ 109 ] modified the membrane by concentration polarization induced hydrogel free radical polymerization. Based on concentration polarization, May et al [ 27 ] and Laghmari et al [ 107 ] prepared zwitterionic SBMA copolymers containing activated carbon double bonds, which further improved the gelation state of hydrogels ( Figure 12 ).…”

Section: Biomedical Applications Of Zwitterionic Hydrogelsmentioning

confidence: 99%

Recent Advances in Zwitterionic Hydrogels: Preparation, Property, and Biomedical Application

Liu

Tang

et al. 2022

Gels

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Nonspecific protein adsorption impedes the sustainability of materials in biologically related applications. Such adsorption activates the immune system by quick identification of allogeneic materials and triggers a rejection, resulting in the rapid failure of implant materials and drugs. Antifouling materials have been rapidly developed in the past 20 years, from natural polysaccharides (such as dextran) to synthetic polymers (such as polyethylene glycol, PEG). However, recent studies have shown that traditional antifouling materials, including PEG, still fail to overcome the challenges of a complex human environment. Zwitterionic materials are a class of materials that contain both cationic and anionic groups, with their overall charge being neutral. Compared with PEG materials, zwitterionic materials have much stronger hydration, which is considered the most important factor for antifouling. Among zwitterionic materials, zwitterionic hydrogels have excellent structural stability and controllable regulation capabilities for various biomedical scenarios. Here, we first describe the mechanism and structure of zwitterionic materials. Following the preparation and property of zwitterionic hydrogels, recent advances in zwitterionic hydrogels in various biomedical applications are reviewed.

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“…To solve the abovementioned problems, many strategies have been explored to immobilize the hydrophilic components on the water-treatment membrane surface, such as additive blending , (e.g., hydrophilic component blending and copolymer construction), coating , (e.g., surface-active agent adsorption and physical coating), surface treatment − (e.g., plasma and UV irradiation treatment and chemically induced grafting), and chemical adhesives , (e.g., hydroxyl methyl silicone and polydopamine). However, these strategies show disadvantages such as difficulty to achieve ideal modification efficiency or loss of functions .…”

Section: Introductionmentioning

confidence: 99%

Antifouling Fibrous Membrane Enables High Efficiency and High-Flux Microfiltration for Water Treatment

Zhang

Guo

et al. 2021

ACS Appl. Mater. Interfaces

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Membrane biofouling has long been a major obstacle to highly efficient water treatment. The modification of the membrane surface with hydrophilic materials can effectively enhance biofouling resistance. However, the water flux of the membranes is often compromised for the improvement of antifouling properties. In this work, a composite membrane composed of a zwitterionic hydrogel and electrospinning fibers was prepared by a spin-coating and UV cross-linking process. At the optimum conditions, the composite membrane could effectively resist the biofouling contaminations, as well as purify polluted water containing bacteria or diatoms with a high flux (1349.2 ± 85.5 L m −2 h −1 for 10 6 CFU mL −1 of an Escherichia coli solution). Moreover, compared with the commercial poly(ether sulfone) (PES) membrane, the membrane displayed an outstanding long-term filtration performance with a lower water flux decline. Therefore, findings in this work provide an effective antifouling modification strategy for microfiltration membranes and hold great potential for developing antifouling membranes for water treatment.

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Polyzwitterionic hydrogel coating for reverse osmosis membranes by concentration polarization-enhanced in situ “click” reaction that is applicable in modules

Cited by 19 publications

References 36 publications

Advances in Membrane Separation for Biomaterial Dewatering

Advances in Membrane Separation for Biomaterial Dewatering

Recent Advances in Zwitterionic Hydrogels: Preparation, Property, and Biomedical Application

Antifouling Fibrous Membrane Enables High Efficiency and High-Flux Microfiltration for Water Treatment

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