Polydopamine layered poly (ether imide) ultrafiltration membranes tailored with silver nanoparticles designed for better permeability, selectivity and antifouling

Saraswathi, Meenakshi Sundaram Sri Abirami; Rana, Dipak; Alwarappan, Subbiah; Gowrishankar, Shanmugaraj; Palled, Vijayakumar; Nagendran, A.

doi:10.1016/j.jiec.2019.03.014

Cited by 62 publications

(24 citation statements)

References 46 publications

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“…biofilm formation after 14 days of continuous cultivation [64]. Another study which was proposed by Saraswathi et al [65] was based on polydopamine-coated poly(ether imide) membranes with incorporated AgNPs. Membranes showed antibacterial activity against both Gram-negative and Gram-positive bacteria and facilitated the separation of toxic contaminants.…”

Section: Agnps Immobilization Into Membrane and Composite Materialsmentioning

confidence: 99%

Silver Nanomaterials for Wound Dressing Applications

et al. 2020

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Silver nanoparticles (AgNPs) have recently become very attractive for the scientific community due to their broad spectrum of applications in the biomedical field. The main advantages of AgNPs include a simple method of synthesis, a simple way to change their morphology and high surface area to volume ratio. Much research has been carried out over the years to evaluate their possible effectivity against microbial organisms. The most important factors which influence the effectivity of AgNPs against microorganisms are the method of their preparation and the type of application. When incorporated into fabric wound dressings and other textiles, AgNPs have shown significant antibacterial activity against both Gram-positive and Gram-negative bacteria and inhibited biofilm formation. In this review, the different routes of synthesizing AgNPs with controlled size and geometry including chemical, green, irradiation and thermal synthesis, as well as the different types of application of AgNPs for wound dressings such as membrane immobilization, topical application, preparation of nanofibers and hydrogels, and the mechanism behind their antimicrobial activity, have been discussed elaborately.

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Section: Agnps Immobilization Into Membrane and Composite Materialsmentioning

confidence: 99%

Silver Nanomaterials for Wound Dressing Applications

et al. 2020

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“…Apart from desalination, ultrafiltration is a highly popular application for biomimetic membranes. As for the desalination, architectures range from layer‐by‐layer (LBL) assembled alginate‐Cu 2+ assembled membranes to composite (LBL) membranes . PS‐ b ‐PMMA‐ b ‐P t BA triblock were used as successful ultrafiltration membrane material and serve as example for self‐assembled nanostructures that lead to selective filtration .…”

Section: Application Of Functional Surfacesmentioning

confidence: 99%

Self‐Assembled Polymeric Membranes and Nanoassemblies on Surfaces: Preparation, Characterization, and Current Applications

Chimisso

Maffeis

Hürlimann

et al. 2019

Macromolecular Bioscience

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Biomembranes play a crucial role in a multitude of biological processes, where high selectivity and efficiency are key points in the reaction course. The outstanding performance of biological membranes is based on the coupling between the membrane and biomolecules, such as membrane proteins. Polymer‐based membranes and assemblies represent a great alternative to lipid ones, as their presence not only dramatically increases the mechanical stability of such systems, but also opens the scope to a broad range of chemical functionalities, which can be fine‐tuned to selectively combine with a specific biomolecule. Tethering the membranes or nanoassemblies on a solid support opens the way to a class of functional surfaces finding application as sensors, biocomputing systems, molecular recognition, and filtration membranes. Herein, the design, physical assembly, and biomolecule attachment/insertion on/within solid‐supported polymeric membranes and nanoassemblies are presented in detail with relevant examples. Furthermore, the models and applications for these materials are highlighted with the recent advances in each field.

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“…[ 3, 4 ] Polymeric membrane is a more practical option in the separation of contaminants from the surface water. [ 5‐9 ] Common polymers such as polyvinylidene fluoride and cellulose acetate are widely used for water treatment. [ 10, 11 ] The use of low‐cost polymers could help reduce significantly the overall costs of membrane separation process.…”

Section: Introductionmentioning

confidence: 99%

Effect of alumina nanoparticles on the antifouling properties of polycarbonate‐polyurethane blend ultrafiltration membrane for water treatment

Etemadi

Afsharkia

Zinatloo-Ajabshir

et al. 2021

Polymer Engineering & Sci

106

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In this work, the flexibility of polycarbonate (PC) membrane was improved by using polyurethane (PU) additive. However, due to the hydrophobic nature of the PU polymer, alumina (Al2O3) nanoparticles were incorporated to PC‐PU blend membrane. The prepared membranes have been used in a submerged membrane system to eliminate humic acid molecules from polluted water in both the presence and absence of coagulant (polyaluminum chloride). The obtained results showed that introduction of PU into PC membrane diminished hydrophilicity and enhanced porosity. Moreover, the flexibility of the PC membrane remarkably improved. Introduction of 1.5 wt% Al2O3 to the PC‐PU blend membrane led to enhancement in both porosity and hydrophilicity. Results of morphological studies showed that in the presence of Al2O3 nanostructures, finger‐shaped voids seemed to elongate across the entire thickness of the prepared membrane. Atomic force microscopy images showed that incorporation of PU and Al2O3 to the PC membrane resulted in a smoother surface. The antifouling performance of membranes revealed that the PC‐PU/Al2O3 nanocomposite membrane possessed the most favorable antifouling features owing to its lowest surface roughness as well as highest hydrophilicity. For all membranes utilizing coagulant (PAC), the irreversible fouling ratio and the flux recovery ratio significantly diminished and increased, respectively.

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Polydopamine layered poly (ether imide) ultrafiltration membranes tailored with silver nanoparticles designed for better permeability, selectivity and antifouling

Cited by 62 publications

References 46 publications

Silver Nanomaterials for Wound Dressing Applications

Silver Nanomaterials for Wound Dressing Applications

Self‐Assembled Polymeric Membranes and Nanoassemblies on Surfaces: Preparation, Characterization, and Current Applications

Effect of alumina nanoparticles on the antifouling properties of polycarbonate‐polyurethane blend ultrafiltration membrane for water treatment

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