Virus reduction through microfiltration membranes modified with a cationic polymer for drinking water applications

Sinclair, T.R.; Robles, D.; Raza, B.; Hengel, S. van den; Rutjes, Saskia A.; Husman, Ana Maria de Roda; Grooth, Joris de; Vos, Wiebe M. de; Roesink, H.D.W.

doi:10.1016/j.colsurfa.2018.04.056

Cited by 61 publications

(54 citation statements)

References 68 publications

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“…Antibacterial activity is usually attributed to electrostatic interactions between cations and the negatively charged membrane surface of bacteria and/or to other interactions between the cations and the bacteria’s RNA/DNA proteins [ 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 ]. As a result, antibacterial coatings usually contain positively charged materials in the form of either small molecules (mostly metal ions such as copper [ 11 , 12 , 13 , 17 , 19 , 20 , 21 , 22 ], silver [ 17 , 18 , 21 ], zinc [ 21 , 23 , 24 ], cobalt [ 25 ], nickel [ 26 ] or polyoxometalates [ 27 , 28 ]), nanoparticles (such as silver-based nanoparticles [ 15 , 29 , 30 , 31 ], rubidium-silver-titanium oxide nanocomposites [ 32 ], phenol-based nanoparticles [ 33 ] or silica-based nanoparticles [ 31 , 34 , 35 , 36 , 37 ]) or polymeric (such as chitosan/chitin [ 38 , 39 ], modified poly(ethylene imine) [ 40 , 41 , 42 , 43 ], quaternary ammonium containing polymers [ 44 , 45 , 46 ,…”

Section: Introductionmentioning

confidence: 99%

Hybrid Antibacterial and Electro-Conductive Coating for Textiles Based on Cationic Conjugated Polymer

et al. 2020

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The development of efficient synthetic strategies for incorporating antibacterial coatings into textiles for pharma and medical applications is of great interest. This paper describes the preparation of functional nonwoven fabrics coated with polyaniline (PANI) via in situ polymerization of aniline in aqueous solution. The effect of three different monomer concentrations on the level of polyaniline coating on the fibers comprising the fabrics, and its electrical resistivities and antibacterial attributes, were studied. Experimental results indicated that weight gains of 0.7 and 3.0 mg/cm2 of PANI were achieved. These levels of coatings led to the reduction of both volume and surface resistivities by several orders of magnitude for PANI-coated polyester-viscose fabrics, i.e., from 108 to 105 (Ω/cm) and from 109 to 105 Ω/square, respectively. Fourier Transform Infrared (FTIR) Spectroscopy and Scanning Electron Microscopy (SEM) confirmed the incorporation of PANI coating with an average thickness of 0.4–1.5 µm, while Thermogravimetric Analysis (TGA) demonstrated the preservation of the thermal stability of the pristine fabrics. The unique molecular structure of PANI, consisting of quaternary ammonium ions under acidic conditions, yielded an antibacterial effect in the modified fabrics. The results revealed that all types of PANI-coated fabrics totally killed S. aureus bacteria, while PANI-coated viscose fabrics also demonstrated 100% elimination of S. epidermidis bacteria. In addition, PANI-coated, PET-viscose and PET fabrics showed 2.5 log and 5.5 log reductions against S. epidermidis, respectively.

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Section: Introductionmentioning

confidence: 99%

Hybrid Antibacterial and Electro-Conductive Coating for Textiles Based on Cationic Conjugated Polymer

et al. 2020

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“…However, this only considers separation by sieving mechanisms. Sinclair et al [ 161 ] modified a microfiltration membranes using a cationic polymer. They reached a 3 log 10 MS2 reduction with the resulting membrane with only 22 % reduction in flux.…”

Section: Wastewater Treatment For Virus Removalmentioning

confidence: 99%

The role of wastewater treatment plants as tools for SARS-CoV-2 early detection and removal

Lesimple

Jasim

Johnson

et al. 2020

Journal of Water Process Engineering

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“…Polyethyleneimine (PEI) is one of the most studied amine-containing polymers in the field of antimicrobial polymers. For example, Vos et al studied the antiviral effect of branched (PEI) coating over polyether sulphone (PES) membrane [ 95 ]. PEI coating led to an increase of -units (99.9%) in MS2 Bacteriophages hosting strain Salmonella Typhimurium WG49 reduction on the membrane surface.…”

Section: Polymers For Antiviral Activitymentioning

confidence: 99%

“…Reprinted from Sinclair TR, Robles D, Raza B, van den Hengel S, Rutjes SA, de Roda Husman AM, et al Virus reduction through microfiltration membranes modified with a cationic polymer for drinking water applications. Colloids Surfaces A Physicochem Eng Asp 2018;551:33-41, Copyright (2018), with permission from Elsevier[95].…”

mentioning

confidence: 99%

Polymers in the Medical Antiviral Front-Line

2020

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Antiviral polymers are part of a major campaign led by the scientific community in recent years. Facing this most demanding of campaigns, two main approaches have been undertaken by scientists. First, the classic approach involves the development of relatively small molecules having antiviral properties to serve as drugs. The other approach involves searching for polymers with antiviral properties to be used as prescription medications or viral spread prevention measures. This second approach took two distinct directions. The first, using polymers as antiviral drug-delivery systems, taking advantage of their biodegradable properties. The second, using polymers with antiviral properties for on-contact virus elimination, which will be the focus of this review. Anti-viral polymers are obtained by either the addition of small antiviral molecules (such as metal ions) to obtain ion-containing polymers with antiviral properties or the use of polymers composed of an organic backbone and electrically charged moieties like polyanions, such as carboxylate containing polymers, or polycations such as quaternary ammonium containing polymers. Other approaches include moieties hybridized by sulphates, carboxylic acids, or amines and/or combining repeating units with a similar chemical structure to common antiviral drugs. Furthermore, elevated temperatures appear to increase the anti-viral effect of ions and other functional moieties.

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Virus reduction through microfiltration membranes modified with a cationic polymer for drinking water applications

Cited by 61 publications

References 68 publications

Hybrid Antibacterial and Electro-Conductive Coating for Textiles Based on Cationic Conjugated Polymer

Hybrid Antibacterial and Electro-Conductive Coating for Textiles Based on Cationic Conjugated Polymer

The role of wastewater treatment plants as tools for SARS-CoV-2 early detection and removal

Polymers in the Medical Antiviral Front-Line

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