Eco-friendly foul release coatings based on a novel reduced graphene oxide/Ag nanocomposite prepared by a green synthesis approach

Soleimani, Samira; Jannesari, Ali; Yousefzadi, Morteza; Ghaderi, Arash; Shahdadi, Adnan

doi:10.1016/j.porgcoat.2020.106107

Cited by 23 publications

(20 citation statements)

References 77 publications

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“…The outstanding physicochemical characteristics, antimicrobial activity, and biocompatibility of graphene, its derivatives, and nanocomposites make them promising candidates for a large variety of antimicrobial applications, presented in Figure 2. They could be summarized as follows [54][55][56]: support to disperse and stabilize various nanomaterials, such as metals, metal oxides, and polymers with high antibacterial efficiency due to the synergistic effect [55]; antibacterial agents for treatment of multidrug-resistant bacterial infections [34,57]; drug-delivery systems (based on the two-dimensional planar structure, large surface area, chemical and mechanical stability, and good biocompatibility) [34,58]; coatings for medical devices, membranes, and others, due to bread-spectrum antimicrobial activity [59][60][61][62][63][64]; creation of smart material surfaces (graphene materials with controllable wettability) [65]; biosensing and bioimaging (due to the ability to conjugate biomolecules and fluorescent dyes) [54], photothermal therapy (because of the high nearinfrared absorbance of the graphene) and gene therapy [54]; dentistry adhesives and dentin coatings [30,45]; endodontic (irrigants and intracanal medicaments; root canal disinfection) and the regenerative endodontics (support of bioactive molecules and enhancing the scaffold properties [66]; wound dressing and healing [33,40,[67][68][69][70][71]; sewage systems [72]; tissue repair, tissue and organ engineering (made possible by the ability of Gr materials to stimulate the growth of eukaryotic cells and to inhibit the microbial cells attachment and growth; 3D printing of 2D graphene to fabricate 3D structure for bone tissue scaffolds) [54]; antibacterial packaging [73]; water purification membranes…”

Section: Potential Applications Of Graphene Nanomaterialsmentioning

confidence: 99%

“…Hydrophilic/hydrophobic balance of the coated surfaces was estimated by water contact angle (WCA) measurement. Green synthesis of Gr/PDMS-based coatings, reducing the adhesion of fouling organism, was reported by Solemani et al [ 61 ]. GO was reduced with Avicennia marina /Ag to achieve RGO/Ag nanocomposite (green synthesis approach).…”

Section: Antimicrobial Coatings Based On Graphene Materialsmentioning

confidence: 99%

“…Wei et al [ 85 ] reported different antibacterial activities of vertically and horizontally aligned graphene nanosheets, confirming the importance of nanosheets exposure for the antimicrobial properties. Other biofouling influencing factors are the elastic modulus [ 16 , 93 ] and the wettability [ 61 ] of the material, as experimentally found by some researchers.…”

Section: Factors Influencing Antimicrobial Activity Of Graphene Nanomaterials-based Coatingsmentioning

confidence: 99%

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Antibiofouling Activity of Graphene Materials and Graphene-Based Antimicrobial Coatings

et al. 2021

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Microbial adhesion and biofilm formation is a common, nondesirable phenomenon at any living or nonliving material surface in contact with microbial species. Despite the enormous efforts made so far, the protection of material surfaces against microbial adhesion and biofilm formation remains a significant challenge. Deposition of antimicrobial coatings is one approach to mitigate the problem. Examples of such are those based on heparin, cationic polymers, antimicrobial peptides, drug-delivering systems, and other coatings, each one with its advantages and shortcomings. The increasing microbial resistance to the conventional antimicrobial treatments leads to an increasing necessity for new antimicrobial agents, among which is a variety of carbon nanomaterials. The current review paper presents the last 5 years’ progress in the development of graphene antimicrobial materials and graphene-based antimicrobial coatings that are among the most studied. Brief information about the significance of the biofouling, as well as the general mode of development and composition of microbial biofilms, are included. Preparation, antibacterial activity, and bactericidal mechanisms of new graphene materials, deposition techniques, characterization, and parameters influencing the biological activity of graphene-based coatings are focused upon. It is expected that this review will raise some ideas for perfecting the composition, structure, antimicrobial activity, and deposition techniques of graphene materials and coatings in order to provide better antimicrobial protection of medical devices.

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Section: Potential Applications Of Graphene Nanomaterialsmentioning

confidence: 99%

Section: Antimicrobial Coatings Based On Graphene Materialsmentioning

confidence: 99%

Section: Factors Influencing Antimicrobial Activity Of Graphene Nanomaterials-based Coatingsmentioning

confidence: 99%

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Antibiofouling Activity of Graphene Materials and Graphene-Based Antimicrobial Coatings

et al. 2021

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“…More recently, upon improved knowledge of membrane fouling, a second generation of control strategies has focused on the disruption of foulant-foulant and foulant-membrane interactions by mechanical means in dynamic filtration systems and by modifications of membrane materials and surface geometry (Ladner et al, 2010;Zhang and Fu, 2018;Zhang Y. et al, 2019). Membrane modifications have been recently applied by coating the surface with polymers and inorganic nanoparticles, aiming to control the overall electrostatic repulsion/attraction and hydrophobic/hydrophilic interactions in the membrane-foulant interface (Liu et al, 2019;Soleimani et al, 2021;Zhao et al, 2021a;Zheng et al, 2021). Hence, recent efforts in surface coating with hydrophilic monomers, surface grafting with hydrophilic polymer bushes, and nanomaterial incorporation have been developed to improve the filtration performance (Hu et al, 2015;Liao et al, 2018;Liu et al, 2019;Ma et al, 2020;Mat Nawi et al, 2020).…”

Section: Developments and Challenges Of Algal Fouling Controlmentioning

confidence: 99%

Membrane Fouling in Algal Separation Processes: A Review of Influencing Factors and Mechanisms

2021

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The use of algal biotechnologies in the production of biofuels, food, and valuable products has gained momentum in recent years, owing to its distinctive rapid growth and compatibility to be coupled to wastewater treatment in membrane photobioreactors. However, membrane fouling is considered a main drawback that offsets the benefits of algal applications by heavily impacting the operation cost. Several fouling control strategies have been proposed, addressing aspects related to characteristics in the feed water and membranes, operational conditions, and biomass properties. However, the lack of understanding of the mechanisms behind algal biofouling and control challenges the development of cost-effective strategies needed for the long-term operation of membrane photobioreactors. This paper reviews the progress on algal membrane fouling and control strategies. Herein, we summarize information in the composition and characteristics of algal foulants, namely algal organic matter, cells, and transparent exopolymer particles; and review their dynamic responses to modifications in the feedwater, membrane surface, hydrodynamics, and cleaning methods. This review comparatively analyzes (i) efficiency in fouling control or mitigation, (ii) advantages and drawbacks, (iii) technological performance, and (iv) challenges and knowledge gaps. Ultimately, the article provides a primary reference of algal biofouling in membrane-based applications.

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“…It is indicated that, on the surface of Ag/GO, there are many folds with rougher surfaces due to AgNPs evenly distributed on the GO sheets. The images revealed the presence of an ultra ne layer, which forms a wavelike structure when they are stacked together [27]. Consequently, the results a rm the uniform presence of Ag on the GO structure.…”

Section: Characterization Of Ag/gomentioning

confidence: 64%

Cotton Fabric Coated With Graphene-based Silver Nanoparticles: Synthesis, Modification, and Antibacterial Activity

Linh

Diep

et al. 2021

Preprint

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In this study, silver immobilizing onto graphene oxide (Ag/GO) was synthesized by the in-situ method. Subsequently, silver immobilizing reduced graphene oxide cotton fabric (Ag/rGO/cotton) was made by the dip-coating method in Ag/GO suspension followed by the chemical reduction with the presence of vitamin C as an environmentally friendly reducing agent. The characteristics of Ag/GO, Ag/GO/cotton, and Ag/rGO/cotton were investigated by Fourier transform infrared spectroscopy, X-ray diffraction, Raman spectroscopy, transmission electron microscopy, scanning electron microscope, and energy-dispersive X-ray spectroscopy. The results showed that AgNPs were uniformly distributed on the surface of GO sheets with an average size of 10–15 nm. Regarding Ag/rGO/cotton, the fiber surface was evenly covered by Ag/rGO materials. Besides, there was no significant difference between the two samples of Ag/GO/cotton and Ag/rGO/cotton, indicating the reduction reaction possessed no effect on the cotton structure. Moreover, the Ag/rGO/cotton also exhibited effective hydrophobicity with a wetting angle of 103.85 ± 0.75 o. The antibacterial performance of Ag/GO, Ag/GO/cotton, and Ag/rGO/cotton against the Gram-positive (Staphylococcus aureus-S. aureus) and Gram-negative (Pseudomonas aeruginosa-P. aeruginosa) bacteria were determined via the diameter zone of inhibition. The results indicated that the appropriate reducing agent is L-ascorbic acid-vitamin C (VC) with the conditions: the VC:Ag/GO mass ratio of 1:1, the reducing temperature of 140 oC, and the reducing time of 120 min showed the highest antibacterial effect against two types of bacteria. All results of the study confirmed that Ag/rGO/cotton possesses significant potential for several antibacterial applications such as protective equipment.

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Eco-friendly foul release coatings based on a novel reduced graphene oxide/Ag nanocomposite prepared by a green synthesis approach

Cited by 23 publications

References 77 publications

Antibiofouling Activity of Graphene Materials and Graphene-Based Antimicrobial Coatings

Antibiofouling Activity of Graphene Materials and Graphene-Based Antimicrobial Coatings

Membrane Fouling in Algal Separation Processes: A Review of Influencing Factors and Mechanisms

Cotton Fabric Coated With Graphene-based Silver Nanoparticles: Synthesis, Modification, and Antibacterial Activity

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