Antimicrobial Activity Enhancement of Poly(ether sulfone) Membranes by in Situ Growth of ZnO Nanorods

Al-Hinai, Muna H.; Sathe, Priyanka; Al‐Abri, Mohammed; Dobretsov, Sergey; Al-Hinai, Ashraf T.; Dutta, Joydeep

doi:10.1021/acsomega.7b00314

Cited by 42 publications

(20 citation statements)

References 71 publications

(152 reference statements)

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“…As can be seen in Figure , when the concentration of ZnO nanoparticles was increased from 2 to 5 wt.%, there was an increase in the intensity of ZnO peaks for both PES‐b‐PES‐ABS (M‐3 to M‐5) and PES‐b‐PES‐AMBS (M‐7 to M‐9) nanocomposites membranes. Our XRD reported result for PES is in agreement with Haider et al and Gohari and Abu‐Zahra while ZnO nanoparticles result is also in agreement with previous studies …”

Section: Resultssupporting

confidence: 93%

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Enhanced antifouling and anticoagulant properties of grafted biomolecule polyethersulfone membranes

Alenazi

Alamry

Hussein

et al. 2019

Polymers for Advanced Techs

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Polyethersulfone (PES) has been widely used in membrane technology and used to purify water in water treatments application or as a dialyzer to purify blood in hemodialysis. In this work, PES was chemically modified by separately grafting two biomolecules, 4‐aminobenzenesulfonamide (ABS), and 4‐amino‐N‐(5‐methylisoxazol‐3‐yl)benzenesulfonamide (AMBS), on PES backbone, and these modified membranes were blended to unmodified PES, in 1:1 ratio, in order to obtain PES‐b‐PES‐ABS and PES‐b‐PES‐AMBS membranes. The first aim of this study is to measure the anticoagulant properties of the modified membrane by measuring the activated partial thromboplastin time (APTT) and prothrombin time (PT). The second aim of the study is to evaluate the antifouling properties of the modified PES membranes by examining its antimicrobial activity against two Gram‐negative bacteria, which are Pseudomonas aeruginosa (P. aeruginosa) and Escherichia coli (E. coli); two Gram‐positive bacteria, which are Bacillus subtilis (B. subtilis) and Staphylococcus aureus (S. aureus); and a fungus, which is Candida albicans (C. albicans). The results showed that grafting of ABS and AMBS improved overall the hydrophilicity properties of the modified PES membranes. PES‐b‐PES‐ABS membranes showed better anticoagulant properties with 13 seconds for PT and 38 seconds for APPT, in comparison with the control sample (pure plasma), which showed 12 seconds for PT and 30 seconds for APPT. For antimicrobial tests, both PES‐b‐PES‐ABS and PES‐b‐PES‐AMBS membranes did not show any antibacterial activity, but when zinc oxide (ZnO) nanoparticles were added to the modified PES membranes in concentrations between 3% to 5% w/w, PES‐b‐PES‐ABS‐ZnO (M‐4 and M‐5), and PES‐b‐PES‐AMBS‐ZnO (M‐8 and M‐9) nanocomposite membranes showed antibacterial activity against P. aeruginosa and S. aureus.

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Section: Resultssupporting

confidence: 93%

“…The peak shift in ZnO nanoparticles result is also in agreement with previous studies. 23,24 The thermal stability of the chemically modified PES and its composites comparison with pure PES were investigated using thermogravimetric analysis (TGA) under nitrogen atmospheres as shown in Figure 8A and 8B. In Figure 8A Figure 11.…”

Section: Aptt and Pt Measurementsmentioning

confidence: 99%

Enhanced antifouling and anticoagulant properties of grafted biomolecule polyethersulfone membranes

Alenazi

Alamry

Hussein

et al. 2019

Polymers for Advanced Techs

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“…To investigate the structural characteristics or crystallinity of polymer or nano-composite membrane, X-RD is the best tool as it is a non-destructive technique. IR spectroscopy is basically employed in order to get information about composition of membranes or presence of different functional groups on membrane surface [213,214]. FT-IR technique is used to determine the cross linking on the surface and to study the chemical structure of the membrane.…”

Section: Ft-ir; Xrdmentioning

confidence: 99%

A Comprehensive Review on Polymeric Nano-Composite Membranes for Water Treatment

Zahid¹,

Rashid²,

Akram³

et al. 2018

J Membr Sci Technol

181

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During last few decades, membrane technology has emerged as an efficient technique over conventional methods due to its high removal capacity, ease in operation and cost effectiveness for wastewater treatment and production of clean water. Membrane based separations are commonly based on polymeric membranes because of their higher flexibility, easily pore forming mechanism, low cost and smaller space for installation as compared to inorganic membranes. Commonly employed membrane fabrication phase inversion method has been shortly reviewed in this article. Major limitation of membrane based separations is fouling and polymeric membranes being hydrophobic in nature are more prone to fouling. Fouling is a deposition of various colloidal particles, macromolecules (polysaccharides, proteins), salts etc. on membrane surface and within pores thus impedes membrane performance, reduces flux and results in high cost. Modification of polymeric membranes due to its tailoring ability with nanomaterials such as metal based and carbon based results in polymeric nano-composite membranes with high antifouling characteristics. Nanomaterials impart high selectivity, permeability, hydrophilicity, thermal stability, mechanical strength, and antibacterial properties to polymeric membranes via blending, coating etc. modification methods. Characterization techniques has also discussed in later section for studying morphological properties and performance of polymer nano-composite membranes. Graphical Abstract

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“…The number of live bacteria in samples were determined by counting the number of colony forming units (CFU) and live and dead staining (Al-Hinai et al, 2017 ; Sathe et al, 2017 ). To determine CFU, serial 10-fold dilutions of collected groundwater or synthetic water samples were made with sterile distilled water.…”

Section: Methodsmentioning

confidence: 99%

Disinfection of Bacteria in Water by Capacitive Deionization

et al. 2020

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Clean water is one of the primary UN sustainable development goals for 2,030 and sustainable water deionization and disinfection is the backbone of that goal. Capacitive deionization (CDI) is an upcoming technique for water deionization and has shown substantial promise for large scale commercialization. In this study, activated carbon cloth (ACC) electrode based CDI devices are used to study the removal of ionic contaminants in water and the effect of ion concentrations on the electrosorption and disinfection functions of the CDI device for mixed microbial communities in groundwater and a model bacterial strain Escherichia coli. Up to 75 % of microbial cells could be removed in a single pass through the CDI unit for both synthetic and groundwater, while maintaining the salt removal activity. Mortality of the microbial cells were also observed during the CDI cell regeneration and correlated with the chloride ion concentrations. The power consumption and salt removal capacity in the presence and absence of salt were mapped and shown to be as low as 0.1 kWh m −3 and 9.5 mg g −1 , respectively. The results indicate that CDI could be a viable option for single step deionization and microbial disinfection of brackish water.

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Antimicrobial Activity Enhancement of Poly(ether sulfone) Membranes by in Situ Growth of ZnO Nanorods

Cited by 42 publications

References 71 publications

Enhanced antifouling and anticoagulant properties of grafted biomolecule polyethersulfone membranes

Enhanced antifouling and anticoagulant properties of grafted biomolecule polyethersulfone membranes

A Comprehensive Review on Polymeric Nano-Composite Membranes for Water Treatment

Disinfection of Bacteria in Water by Capacitive Deionization

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