Attachment of selenium to a reverse osmosis membrane to inhibit biofilm formation of S. aureus

Low, Darryl; Hamood, Abdul N.; Reid, Ted W.; Mosley, Thomas; Tran, Phat L.; Song, Lianfa; Morse, Audra

doi:10.1016/j.memsci.2011.04.041

Cited by 33 publications

(8 citation statements)

References 25 publications

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“…These modifications include surface polymerization [82,92], functionalization [93][94][95], derivatization [96], involving the use of chemicals for altering membrane surface properties.…”

Section: Antibacterial Membranesmentioning

confidence: 99%

The role of cell-surface interactions in bacterial initial adhesion and consequent biofilm formation on nanofiltration/reverse osmosis membranes

Habimana

Semiao

Casey

2014

Journal of Membrane Science

233

113

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“…These modifications include surface polymerization [82,92], functionalization [93][94][95], derivatization [96], involving the use of chemicals for altering membrane surface properties.…”

Section: Antibacterial Membranesmentioning

confidence: 99%

The role of cell-surface interactions in bacterial initial adhesion and consequent biofilm formation on nanofiltration/reverse osmosis membranes

Habimana

Semiao

Casey

2014

Journal of Membrane Science

233

113

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“…The membrane biofouling decreases the membrane flux, deteriorates the membrane structure, reduces the membrane lifetime and increases energy costs . To overcome the biofouling phenomena in the membrane processes, antimicrobial agents can be added into the feed stream of the process or the membrane with self‐antimicrobial activity can be employed for killing microbes and inhibiting microbial growth. In the last decade, several researches have been conducted to develop membranes with an antimicrobial property.…”

Section: Introductionmentioning

confidence: 99%

“…Several compounds have been used as antibacterial agents in the synthesis of antibacterial membranes. For example, titanium dioxide (TiO 2 ), enzymes, chlorinated compounds, selenium, various polycations such as quaternized poly(2‐dimethylamino ethyl methacrylate) as well as silver ion and nanoparticles have been considered to have antimicrobial activity when used in the membranes. Among these antibacterial agents, silver nanoparticles deserve special attention because of their optical, catalytic and antibacterial properties as well as high thermal stability and long‐term activity.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of polyethersulfone/silver nanocomposite ultrafiltration membrane for antibacterial applications

Toroghi

Raisi

Aroujalian

2014

Polymers for Advanced Techs

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Antimicrobial ultrafiltration membranes were prepared by coating silver nanoparticles on the surface of polyethersulfone (PES) membranes which were fabricated via phase inversion induced by the immersion precipitation technique, and their morphology and performance were compared with the antimicrobial PES membranes synthesized by adding the silver nanoparticles into the casting solution during the phase inversion process. For this purpose, stable and uniform colloidal solutions of the silver nanoparticles were prepared by chemical reduction of silver salt using fructose and dimethylformamide as a reducing agent. The silver nanoparticles were characterized by ultraviolet–visible spectroscopy, X‐ray powder diffraction and dynamic light scattering analysis. The morphology and surface properties of the prepared membranes were examined by field emission scanning electron microscopy and atomic force microscopy analysis. Moreover, the separation properties, antimicrobial efficiency and amount of silver release from the PES nanocomposite membranes during the cross flow ultrafiltration were determined. The results indicated that the silver content of the coated PES membranes was greater than the membranes fabricated by the solution blending method. Also, the permeation flux of the silver‐coated membranes was similar to the neat PES membranes, while the membranes prepared by the second approach had less flux. The membranes synthesized by both coating and blending methods showed high antimicrobial and bactericidal activity against gram‐negative bacteria such as Escherichia coli and gram‐positive bacteria such as Staphylococcus aureus. Finally, the prepared antimicrobial membranes were successfully used for the ultrafiltration of raw milk to reduce the microbial load during the concentration process. Copyright © 2014 John Wiley & Sons, Ltd.

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“…It is known that coating materials in physical modification or sorption normally interact with active layer of membrane by van der Waals attraction, electrostatic interaction or hydrogen bonding, which may not be and E. coli cells were dramatically decreased on the modified RO membranes. [155,189] The virgin RO membrane had a biofouling-induced flux loss of 55%; however, the modification treatment resulted in merely 15%. [190] Moreover, a significant membrane biofilm reduction in synthetic wastewater was observed; revealing utilization of organo-selenium for RO membrane surface treatment was a feasible and effective biofouling control strategy.…”

Section: Figurementioning

confidence: 99%

Recent advances in polymer and polymer composite membranes for reverse and forward osmosis processes

Yan

Wang

2016

Progress in Polymer Science

397

150

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Semipermeable membranes are the core elements for membrane water desalination technologies such as commercial reverse osmosis (RO) process and emerging forward osmosis (FO) process. Structural and chemical properties of the semipermeable membranes determine water flux, salt rejection, fouling resistance, and chemical stability, which greatly impact energy consumption and costs in osmosis separation processes. In recent years, significant progress has been made in the development of high-performance polymer and polymer composite membranes for desalination applications. This paper reviews recent advances in different polymer-based RO and FO desalination membranes in terms of materials and strategies developed for improving properties and performances.

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Attachment of selenium to a reverse osmosis membrane to inhibit biofilm formation of S. aureus

Cited by 33 publications

References 25 publications

The role of cell-surface interactions in bacterial initial adhesion and consequent biofilm formation on nanofiltration/reverse osmosis membranes

The role of cell-surface interactions in bacterial initial adhesion and consequent biofilm formation on nanofiltration/reverse osmosis membranes

Preparation and characterization of polyethersulfone/silver nanocomposite ultrafiltration membrane for antibacterial applications

Recent advances in polymer and polymer composite membranes for reverse and forward osmosis processes

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