Bacterial anti-adhesive properties of polysulfone membranes modified with polyelectrolyte multilayers

Tang, Li; Gu, Wenyu; Yi, Peng; Bitter, Julie L.; Hong, Ji Yeon; Fairbrother, D. Howard; Chen, Kai Loon

doi:10.1016/j.memsci.2013.06.031

Cited by 36 publications

(31 citation statements)

References 41 publications

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“…Recently, the coatings of implantable devices [ 9 , 10 ] and films used for wound healing have been investigated in detail. A special, but very important, case of possible biomedical applications is the adhesion of bacteria on polyelectrolyte multilayers [ 11 , 12 , 13 ] as a special type of contact surface material. It is known that bacteria readily adhere to wet surfaces, and that they form organized colonies of cells enclosed in a self-excreted matrix composed principally of extracellular polysaccharide (EPS) that facilitates adhesion to the surface and to each other.…”

Section: Introductionmentioning

confidence: 99%

Influence of Polyelectrolyte Multilayer Properties on Bacterial Adhesion Capacity

Kovačević

Pratnekar²,

Torkar³

et al. 2016

Polymers

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Bacterial adhesion can be controlled by different material surface properties, such as surface charge, on which we concentrate in our study. We use a silica surface on which poly(allylamine hydrochloride)/sodium poly(4-styrenesulfonate) (PAH/PSS) polyelectrolyte multilayers were formed. The corresponding surface roughness and hydrophobicity were determined by atomic force microscopy and tensiometry. The surface charge was examined by the zeta potential measurements of silica particles covered with polyelectrolyte multilayers, whereby ionic strength and polyelectrolyte concentrations significantly influenced the build-up process. For adhesion experiments, we used the bacterium Pseudomonas aeruginosa. The extent of adhered bacteria on the surface was determined by scanning electron microscopy. The results showed that the extent of adhered bacteria mostly depends on the type of terminating polyelectrolyte layer, since relatively low differences in surface roughness and hydrophobicity were obtained. In the case of polyelectrolyte multilayers terminating with a positively charged layer, bacterial adhesion was more pronounced than in the case when the polyelectrolyte layer was negatively charged.

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Section: Introductionmentioning

confidence: 99%

Influence of Polyelectrolyte Multilayer Properties on Bacterial Adhesion Capacity

Kovačević

Pratnekar²,

Torkar³

et al. 2016

Polymers

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“…Most efforts to prevent biofilm development are based on limiting the initial bacterial attachment or increasing detachment. Methods to develop surfaces with anti-biofouling properties include linking and embedding of antimicrobial nanoparticles [ 139 , 140 , 141 , 142 ], grafting of polymer brushes, that form a hydrated gel layer that prevents bacteria from interacting with surfaces [ 143 ], and electrically charged surfaces [ 144 , 145 ]. These coating methods have been demonstrated to be effective, but the coating material loss causes the decline of their performance over time [ 146 , 147 , 148 ].…”

Section: Membrane Foulingmentioning

confidence: 99%

Electro-Conductive Membranes for Permeation Enhancement and Fouling Mitigation: A Short Review

et al. 2017

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The research on electro-conductive membranes has expanded in recent years. These membranes have strong prospective as key components in next generation water treatment plants because they are engineered in order to enhance their performance in terms of separation, flux, fouling potential, and permselectivity. The present review summarizes recent developments in the preparation of electro-conductive membranes and the mechanisms of their response to external electric voltages in order to obtain an improvement in permeation and mitigation in the fouling growth. In particular, this paper deals with the properties of electro-conductive polymers and the preparation of electro-conductive polymer membranes with a focus on responsive membranes based on polyaniline, polypyrrole and carbon nanotubes. Then, some examples of electro-conductive membranes for permeation enhancement and fouling mitigation by electrostatic repulsion, hydrogen peroxide generation and electrochemical oxidation will be presented.

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“…A special and very promising case is the possible application of PEMs as antibacterial coatings [40][41][42][43][44]. Many investigated PEMs promote or disrupt bacterial biofilm formation simply because of their high surface charge density.…”

Section: Application Of Polyelectrolyte Multilayers For Studying Bactmentioning

confidence: 99%

Bacterial adhesion on polyelectrolyte multilayers

Bohinc¹,

Kovačević²

2018

Fighting Antimicrobial Resistance

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Bacterial anti-adhesive properties of polysulfone membranes modified with polyelectrolyte multilayers

Cited by 36 publications

References 41 publications

Influence of Polyelectrolyte Multilayer Properties on Bacterial Adhesion Capacity

Influence of Polyelectrolyte Multilayer Properties on Bacterial Adhesion Capacity

Electro-Conductive Membranes for Permeation Enhancement and Fouling Mitigation: A Short Review

Bacterial adhesion on polyelectrolyte multilayers

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