Bioinspired passive anti-biofouling surfaces preventing biofilm formation

Pechook, Sasha; Sudakov, Kobi; Polishchuk, Iryna; Ostrov, Ievgeniia; Zakin, Varda; Pokroy, Boaz; Shemesh, Moshe

doi:10.1039/c4tb01522c

Cited by 51 publications

(47 citation statements)

References 49 publications

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“…[ 46 ] Owing to their biodegradability, the superhydrophobic coatings may potentially be a platform for preparing a temporary anti-biofouling coating for surgical instruments. More [ 47] They demonstrated that the wax modified surfaces passively (with no toxic influence on bacterial cells) inhibited the formation of biofilms (reduction of 95.6-99.9% over a 7 day period) by B. cereus and P. aeruginosa. Importantly, the wax surfaces can be formed on a variety of materials and intricately shaped surfaces, showing potentially feasible for various medical and industrial applications.…”

Section: Bioinspired Superhydrophobic Surfacesmentioning

confidence: 99%

Designing Bioinspired Anti‐Biofouling Surfaces based on a Superwettability Strategy

Zhang

Zang

et al. 2016

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184

124

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Anti-biofouling surfaces are of high importance owing to their crucial roles in biosensors, biomedical devices, food processing, the marine industry, etc. However, traditional anti-biofouling surfaces based on either the release of biocidal compounds or surface chemical/physical design cannot satisfy the practical demands when meeting real-world complex conditions. The outstanding performances of natural anti-biofouling surfaces motivate the development of new bioinspired anti-biofouling surfaces. Herein, a novel strategy is proposed for rationally designing bioinspired anti-biofouling surfaces based on superwettability. By utilizing the trapped air cushions or liquid layers, Lotus leaf inspired superhydrophobic surfaces, fish scales inspired underwater superoleophobic surfaces, and Nepenthes pitcher plants inspired omniphobic slippery surfaces have been successfully designed as anti-biofouling surfaces to effectively resist proteins, bacteria, cells, and marine organisms. It is believed that these novel superwettability-based anti-biofouling surfaces will bring a new era to both biomedical technology and the marine industry, and will greatly benefit human health and daily life in the near future.

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Section: Bioinspired Superhydrophobic Surfacesmentioning

confidence: 99%

Designing Bioinspired Anti‐Biofouling Surfaces based on a Superwettability Strategy

Zhang

Zang

et al. 2016

Small

184

124

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“…The underwater oleophobicity is to be distinguished from the in-air oleophobicity which stands for resistance to oil adhesion in air. Inspired by biological surfaces such as sharkskin and clamshells that are resistant to biological or organic adhesion underwater, the materials science community has developed a plethora of interfacial materials with underwater superoleophobicity for different applications such as marine biofouling control [21,22] and oil-water separations [23][24][25][26][27][28][29][30][31][32][33]. In general, there are two requirements for constructing an underwater superoleophobic surface: rough (textured) surface morphology and hydrophilic surface chemistry.…”

Section: Introductionmentioning

confidence: 99%

Tailoring surface charge and wetting property for robust oil-fouling mitigation in membrane distillation

Wang

Jin

Hou

et al. 2016

Journal of Membrane Science

128

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a b s t r a c tThe efforts of developing anti-oil-fouling membranes have so far been focusing on tailoring membrane surface wetting properties, whereas the impacts of surface charge are often eclipsed. In this study, we investigated the impacts of surface charge and wetting property on oil fouling kinetics in membrane distillation (MD). Two composite membranes with in-air hydrophilic and underwater oleophobic surfaces, one of positive charge and the other of negative charge, were fabricated by modifying a hydrophobic polyvinylidene fluoride (PVDF) membrane with hydrophilic polyelectrolytes with different charges. The modified composite membranes were compared with the reference PVDF membrane for their contact angles, adhesion force curves, and fouling kinetics in MD processes. It was found that the negatively charged composite membrane performed the best in mitigating fouling by the negatively charged oil emulsion, followed by the positively charged composite membrane, with the pristine PVDF membrane being the most susceptible to oil fouling in MD experiments. The results from underwater oil CA measurements and oil probe force spectroscopy corroborated the results in the fouling experiments. The impact of surface charges on oil-membrane interaction and associated mechanism were also discussed.

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“…3D crystalline wax surfaces form a heterogeneous surface that combines wax and air pockets, reducing the contact area between a bacterial cell and the surface and thereby interrupting bacterial adhesion, thus preventing the initial step of biofilm formation (Pechook et al, 2015).…”

Section: Biofilm Control Strategiesmentioning

confidence: 99%

Bacillus cereus hazard and control in industrial dairy processing environment

2016

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Bioinspired passive anti-biofouling surfaces preventing biofilm formation

Abstract: Our bioinspired, superhydrophobic surfaces show exceptional ability to passively inhibit the biofilm formation of Gram-positive and Gram-negative bacteria over a 7 day period.

Cited by 51 publications

References 49 publications

Designing Bioinspired Anti‐Biofouling Surfaces based on a Superwettability Strategy

Designing Bioinspired Anti‐Biofouling Surfaces based on a Superwettability Strategy

Tailoring surface charge and wetting property for robust oil-fouling mitigation in membrane distillation

Bacillus cereus hazard and control in industrial dairy processing environment

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