Polysulfone Membranes Modified with Bioinspired Polydopamine and Silver Nanoparticles Formed <i>in Situ</i> To Mitigate Biofouling

Tang, Li; Livi, Kenneth J. T.; Chen, Kai Loon

doi:10.1021/acs.estlett.5b00008

Cited by 108 publications

(72 citation statements)

References 49 publications

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“…Silver is one of the most common potent 7 broad-spectrum biocides that has very low toxicity to human [10]. It has been utilized in 8 many studies and demonstrated to be effective in inhibiting bacteria growth on membrane 9 surface [11][12][13][14][15][16][17][18][19][20][21][22]. To better control the release rate of Ag, zero-valent Ag instead of Ag + ion is preferred, usually in the form of Ag nanoparticles (AgNP) [11].…”

mentioning

confidence: 99%

Novel regenerable antimicrobial nanocomposite membranes: Effect of silver loading and valence state

2017

Journal of Membrane Science

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Silver as a broad spectrum antimicrobial agent has been widely studied as antibiofouling coatings in membrane surface modifications. Incorporation of Ag in nanozeolite grafted on the membrane surface was recently demonstrated to provide sustainable and regenerable antimicrobial activity. In this study, we examined two new methods of forming the Ag-zeolite based antimicrobial coating using polyvinyl alcohol (PVA) and polydopamine (PDA), respectively. Both methods achieved a wide range of Ag loading. Silver release and bacterial exposure experiments showed that increasing Agzeolite loading accelerated Ag release, which led to stronger antimicrobial activity, but did not significantly extend the antimicrobial lifetime of the membrane. Reduction of Ag + to Ag(0), however, effectively stabilized Ag, reduced Ag release rate, and significantly prolonged the antimicrobial efficacy against bacterial growth on the membrane surface. All coatings strongly inhibited cell attachment and growth on the membrane surface despite the bacterial growth in the suspension, demonstrating the benefit of surface coating versus disinfection pretreatment of feed water. These results show the potential of polymer/Ag-zeolite nanocomposite coatings as versatile approach towards long lasting and regenerable anti-biofouling activity in membrane systems. They also highlight the importance of implementing slow-release mechanism in high Ag-zeolite loading samples for efficient utilization of loaded Ag.

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mentioning

confidence: 99%

Novel regenerable antimicrobial nanocomposite membranes: Effect of silver loading and valence state

2017

Journal of Membrane Science

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“…An MXene-Ag membrane fouled with methyl green and bovine serum presented at 50 mg/L exhibited remarkable flux recovery (91%-97%) compared to that of the pristine MXene membrane (81%-86%) [191], attributable to the enhanced hydrophilicity of the MXene-Ag membrane with additional nanopores. The water contact angle decreased from 40° to 35° as the Ag nanoparticle level rose from 0 to 21%, confirming that Ag improved membrane surface hydrophilicity [192]. Figure 7(a) shows a schematic of, and the mechanism of dye removal by, the MXene-Ag composite membrane.…”

Section: Membranementioning

confidence: 77%

Review of MXenes as new nanomaterials for energy storage/delivery and selected environmental applications

et al. 2018

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Energy and environmental issues presently attract a great deal of scientific attention. Recently, two-dimensional MXenes and MXene-based nanomaterials have attracted increasing interest because of their unique properties (e.g., remarkable safety, a very large interlayer spacing, environmental flexibility, a large surface area, and thermal conductivity). In 2011, multilayered MXenes (Ti 3 C 2 T x , a new family of two-dimensional (2D) materials) produced by etching an A layer from a MAX phase of Ti 3 AlC 2 , were first described by researchers at Drexel University. The term "MXene" was coined to distinguish this new family of 2D materials from graphene, and applies to both the original MAX phases and MXenes fabricated from them. We present a comprehensive review of recent studies on energy and environmental applications of MXene and MXene-based nanomaterials, including energy conversion and storage, adsorption, membrane, photocatalysis, and antimicrobial. Future research needs are discussed briefly with current challenges that must be overcome before we completely understand the extraordinary properties of MXene and MXene-based nanomaterials.

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“…Catecholamine chemistries have been used as a component in a number of different filtration membranes, including gas separation and proton exchange membranes as well as microfiltration (MF), ultrafiltration (UF), nanofiltration (NF), and both forward osmosis and reverse osmosis (RO) membranes . When doing this, care must be taken to avoid both pore blockage and attachment of proteins to the adhesive surface, resulting in reduced filtration performance .…”

Section: Applications Of Catecholamine Polymersmentioning

confidence: 99%

“…In addition, polydopamine‐based nanocomposite membranes have been exploited to enhance ultrafiltration performance. This includes incorporation of carbon nanotubes, gold nanorods, silica particles, and silver nanoparticles into membranes used to reduce oil, protein, and bacterial fouling in wastewater filtration.…”

Section: Applications Of Catecholamine Polymersmentioning

confidence: 99%

Versatile Surface Modification Using Polydopamine and Related Polycatecholamines: Chemistry, Structure, and Applications

Barclay

Hegab

Clarke

et al. 2017

Adv Materials Inter

300

223

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Almost ten years ago, Lee et al. [13] formulated a universal adhesive coating based on observation of the strong attachment by mussels through their byssal threads to virtually all types of inorganic and organic surfaces. The amino acid compositions of the mussel foot proteins that generate the attachment are rich in catechol and amine groups. [13][14][15] These groups associate under marine conditions, forming strong covalent and noncovalent interactions with substrates. [13] This led to the idea that both catechol and amine groups were crucial in forming robust, wide spectrum adhesive nanolayers [16,17] and consequently dopamine was conceived as a powerful building block for spontaneous deposition of thin polymer films. The dopamine monomer is deposited onto unadulterated surfaces through self-assembly and oxidative cross-linking from mild pH aqueous solution in a rapid reaction. This results in a durable, nanoscale, conformal, and hydrophilic coating that can be readily modified to introduce specific surface chemistries for a particular application. [18][19][20][21][22] These bioinspired, polydopamine materials are chemically and structurally indistinguishable from eumelanins found in the human body, [23,24] providing excellent biocompatibility. Additionally, polydopamine has broad electromagnetic absorption and excellent photothermal energy conversion [25] as well as having ionic-electronic hybrid conductivity. [26] Along with the excellent coating performance, these properties provide a vast array of potential applications for polydopamine materials.In this article, we explain what is known about polydopamine and related catecholamine coatings; their formation, the adhesion mechanism, and their physicochemical properties and we also review the applications of these materials (Figure 1). Since 2011, there have been a number of reviews on this subject matter, including general reviews on the physicochemical properties of polydopamine coatings [11,20,[27][28][29] and their applications. [20,27,30] There are also a number of more specific reviews on the chemical synthesis and modulation of polycatecholamine coatings, [31] the biomedical applications of these coatings, [8,[32][33][34] their electronic properties, [26,35] the use of polydopamine to make films at fluid interfaces, [36] in hierarchically constructed particles, [33] and capsules, [30] exploitation of polycatecholamine coatings in membrane filtration, [37] polydopamine-derived carbon materials, [38] and the use of coordination chemistry in catechol-based materials. [39] Nonetheless, this area of research is growing so rapidly [25,27] that many recent Polydopamine and related polycatecholamines can be easily deposited onto almost any surface from mild, aqueous solution. This results in durable, nanoscale coatings that exhibit high biocompatibility and have useful chemical and electronic properties. Additionally, these materials can be readily chemically and physically modified, and consequently, they are used extensively for surface modification. This ...

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Polysulfone Membranes Modified with Bioinspired Polydopamine and Silver Nanoparticles Formed in Situ To Mitigate Biofouling

Cited by 108 publications

References 49 publications

Novel regenerable antimicrobial nanocomposite membranes: Effect of silver loading and valence state

Novel regenerable antimicrobial nanocomposite membranes: Effect of silver loading and valence state

Review of MXenes as new nanomaterials for energy storage/delivery and selected environmental applications

Versatile Surface Modification Using Polydopamine and Related Polycatecholamines: Chemistry, Structure, and Applications

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