ZnO superhydrophobic coating via convenient spraying and its biofouling resistance

Li, Changquan; Xie, Chan; Ou, Junfei; Xue, Mingshan; Wang, Fajun; Lei, Sheng; Fang, Xinzuo; Zhou, Haoyu; Li, Wen

doi:10.1002/sia.6519

Cited by 13 publications

(9 citation statements)

References 29 publications

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“…The surface wettability of the surface was found to be influenced by the size of zinc oxide nanoparticles, in which 100 nm nanoparticles demonstrated a water contact angle and sliding angle of 150.5° and 24.5°, respectively, whereas 10 nm nanoparticles presented with a much rougher surface and higher superhydrophobicity, indicated by a water contact angle and sliding angle of 169.3° and 2.5°, respectively. The study also showed that durability can be increased by using a mixture of 10 nm and 100 nm nanoparticles, where the superhydrophobicity of such a coating is comparable to those of 10 nm nanoparticles, with a water contact angle and sliding angle of 168.5° and 3.5°, respectively [ 106 ].…”

Section: Nanomaterials For Fabrication Of Superhydrophobic Surfacesmentioning

confidence: 99%

Superhydrophobic Nanocoatings as Intervention against Biofilm-Associated Bacterial Infections

Chan

Chieng

et al. 2021

Nanomaterials

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Biofilm formation represents a significant cause of concern as it has been associated with increased morbidity and mortality, thereby imposing a huge burden on public healthcare system throughout the world. As biofilms are usually resistant to various conventional antimicrobial interventions, they may result in severe and persistent infections, which necessitates the development of novel therapeutic strategies to combat biofilm-based infections. Physicochemical modification of the biomaterials utilized in medical devices to mitigate initial microbial attachment has been proposed as a promising strategy in combating polymicrobial infections, as the adhesion of microorganisms is typically the first step for the formation of biofilms. For instance, superhydrophobic surfaces have been shown to possess substantial anti-biofilm properties attributed to the presence of nanostructures. In this article, we provide an insight into the mechanisms underlying biofilm formation and their composition, as well as the applications of nanomaterials as superhydrophobic nanocoatings for the development of novel anti-biofilm therapies.

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Section: Nanomaterials For Fabrication Of Superhydrophobic Surfacesmentioning

confidence: 99%

Superhydrophobic Nanocoatings as Intervention against Biofilm-Associated Bacterial Infections

Chan

Chieng

et al. 2021

Nanomaterials

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“…In the case of non-biocide release coatings, they can be divided into different categories: (a) coatings that detach biofoulants (i.e., hydrophobic materials, such as fluorocarbons, hydrocarbons, and polydimethylsiloxanes); (b) coatings that inhibit microbial growth [ 49 , 96 ]; (c) coatings that prevent attachment of biofoulants (such as PEG-based materials for their resistance to protein adsorption and cells adhesion, or antimicrobial peptides) [ 1 , 97 , 98 , 99 ]; or (d) materials able to create a superhydrophobic surface, based on ZnO NPs functionalized with hexadecyltrimethoxysilane [ 100 ], or pluronic-lysozyme conjugate coatings [ 101 ]. Thus, the measurement of microbial adhesive forces represents a crucial topic [ 102 ].…”

Section: Enhancement Of Antimicrobial Properties Via Nanomodification Of Epoxiesmentioning

confidence: 99%

Improving the Antimicrobial and Mechanical Properties of Epoxy Resins via Nanomodification: An Overview

et al. 2021

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The main purpose of this work is to provide a comprehensive overview on the preparation of multifunctional epoxies, with improved antimicrobial activity and enhanced mechanical properties through nanomodification. In the first section, we focus on the approaches to achieve antimicrobial activity, as well as on the methods used to evaluate their efficacy against bacteria and fungi. Relevant application examples are also discussed, with particular reference to antifouling and anticorrosion coatings for marine environments, dental applications, antimicrobial fibers and fabrics, and others. Subsequently, we discuss the mechanical behaviors of nanomodified epoxies with improved antimicrobial properties, analyzing the typical damage mechanisms leading to the significant toughening effect of nanomodification. Some examples of mechanical properties of nanomodified polymers are provided. Eventually, the possibility of achieving, at the same time, antimicrobial and mechanical improvement capabilities by nanomodification with nanoclay is discussed, with reference to both nanomodified epoxies and glass/epoxy composite laminates. According to the literature, a nanomodified epoxy can successfully exhibit antibacterial properties, while increasing its fracture toughness, even though its tensile strength may decrease. As for laminates—obtaining antibacterial properties is not followed by improved interlaminar properties.

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“…Owing to their unique properties, superhydrophobic coatings can be used in self-cleaning [ 1 , 2 , 3 , 4 , 5 ], anti-corrosion [ 6 , 7 , 8 ], anti-icing [ 8 , 9 , 10 ], and oil–water separation [ 10 , 11 , 12 ], suggesting great potential in a broad range of applications [ 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 ]. ZnO nanoparticle (nano-ZnO) has strong anti-bacterial properties because of its low volume and high surface activity [ 23 , 24 , 25 ]. Hsieh et al [ 26 ] successfully prepared a superhydrophobic coating using a composite of ZnO and fluorinated polymer.…”

Section: Introductionmentioning

confidence: 99%

Preparation of ZnO Nanoparticle/Acrylic Resin Superhydrophobic Coating via Blending Method and Its Wear Resistance and Antibacterial Properties

Wang

et al. 2021

Materials

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Herein, a facile method for the preparation of an acrylic resin-based superhydrophobic coating is provided. Firstly, ZnO nanoparticles were modified with silane to obtain hydrophobic ZnO, which was then homogeneously blended with acrylic resin. Subsequently, the mixture was sprayed on an aluminum sheet to form a cured coating. The surface composition and morphology of the coating were characterized using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). The hydrophobicity, wear resistance, and antibacterial properties of the prepared samples were tested. The optimized hydrophobicity was achieved with 10 wt% modification agent and resin-to-ZnO mass ratio of 1:4, exhibiting contact and sliding angles of 168.11° and 7.2°, respectively. Wear resistance was insufficient with a low resin content, while it grew with the increase in the resin content. However, when the resin content was excessively high, the hydrophobicity was reduced because the resin could wrap the modified ZnO nanoparticles and decrease the number of hydrophobic groups on the surface. Compared with the pure acrylic resin coating, the ZnO nanoparticle/acrylic resin superhydrophobic coating demonstrated a significant enhancement in the antibacterial properties.

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ZnO superhydrophobic coating via convenient spraying and its biofouling resistance

Cited by 13 publications

References 29 publications

Superhydrophobic Nanocoatings as Intervention against Biofilm-Associated Bacterial Infections

Superhydrophobic Nanocoatings as Intervention against Biofilm-Associated Bacterial Infections

Improving the Antimicrobial and Mechanical Properties of Epoxy Resins via Nanomodification: An Overview

Preparation of ZnO Nanoparticle/Acrylic Resin Superhydrophobic Coating via Blending Method and Its Wear Resistance and Antibacterial Properties

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