A compound of ZnO/PDMS with photocatalytic, self-cleaning and antibacterial properties prepared via two-step method

Wang, Tinglan; Lu, Zicheng; Wang, Xueqi; Zhang, Zhicheng; Zhang, Qi; Yan, Bing; Wang, Yongqian

doi:10.1016/j.apsusc.2021.149286

Cited by 44 publications

(24 citation statements)

References 30 publications

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“…The antibacterial properties of the superhydrophobic sample and comparison samples were analyzed based on the standard method for inorganic nanomaterials [ 36 ]. The comparison sample was the pure acrylic resin coating.…”

Section: Resultsmentioning

confidence: 99%

“…Meanwhile, the superhydrophobic coating can shield water because of the air-containing layer, reducing the adhesion of bacterial proteins on the surface and partly contributing to the antibacterial properties of superhydrophobic coating. Therefore, the antibacterial behavior of the nano-ZnO/acrylic resin superhydrophobic coating can be accredited to the coupling effect of the dissolved Zn 2+ ions and the superhydrophobic insulation [ 36 , 37 ]. The superhydrophobicity of the surface is usually covered with organic film, which will greatly improve the hydrophobicity of the surface of the material.…”

Section: Resultsmentioning

confidence: 99%

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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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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

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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“…In numerous fields, such as microrobots, sensors, and drug delivery systems, there is a need for hydrophobic materials with a smooth surface, and stable mechanical and physicochemical properties. Low roughness and high contact angle (above 90 • ) can help avoid cell proliferation or even act as an antibacterial surface [14,33]. However, there are also other applications, mainly in the tissue engineering field, where fine roughness and hydrophilicity are demanded in terms of tissue and cell culture for proper osteointegration [34].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Physiological Incubation on the Properties of Elastic Magnetic Composites for Soft Biomedical Sensors

Mystkowska

Powojska

Łysik

et al. 2021

Sensors

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Magnetic micro- and nanoparticles (MPs)-based composite materials are widely used in various applications in electronics, biotechnology, and medicine. This group of silicone composites have advantageous magnetic and mechanical properties as well as sufficient flexibility and biocompatibility. These composites can be applied in medicine for biological sensing, drug delivery, tissue engineering, and as remote-controlled microrobots operating in vivo. In this work, the properties of polydimethylsiloxane (PDMS)-based composites with different percentages (30 wt.%, 50 wt.%, 70 wt.%) of NdFeB microparticles as a filler were characterized. The novelty of the work was to determine the influence of the percentage of MP content and physiological conditioning on the properties of the PDMS-MP composites after in vitro incubation. An important essence of the work was a comprehensive study of the properties of materials important from the point of view of medical applications. Materials were tested before and after conditioning in 0.9 wt.% NaCl solution at a temperature of 37 °C. Several studies were carried out, including thermal, physicochemical, and rheological tests. The results show that with an increase of the incubation time, most of the measured thermal and physicochemical parameters decreased. The presence of the magnetic filler, especially at a concentration of 70 wt.%, has a positive effect on thermal stability and physicochemical and rheological properties. The performed tests provided important results, which can lead to further research for a broader application of magnetic composites in the biomedical field.

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“…The selection of a hydrophobic polymer is difficult because the degradation of some fluoropolymers is known to form perfluorooctanoic acids, which are very harmful to nature and human beings [23]. PDMS is one of the best organic polymers for the synthesis of the superhydrophobic surface because of its unique properties, such as hydrophobicity, excellent thermal stability, low glass transition temperature, good electrical properties, good weather resistance, low surface free energy, low toxicity and low chemical reactivity [29,30]. Both PDMS and ZnO nanoflower have exceptional non-toxic and environmentally friendly properties.…”

Section: Introductionmentioning

confidence: 99%

Development of Superhydrophobic Cotton Fabric Using Zinc Oxide Nanoflower/Polydimethylsiloxane (PDMS) Nanocomposite Coatings

Kumar¹,

Prabhakar²,

Sen³

et al. 2021

TLR

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Nanoflower is anticipated to become a very smart material due to its unique properties such as high surface to volume ratio. A hydrothermal method was used in this study to prepare the zinc oxide (ZnO) nanoflower and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FT-IR). The average particle size of the ZnO nanoflower was calculated as 21nm according to the Debye-Scherrer formula. The SEM result gives the surface morphological information of the ZnO nanoflower, which confirms the formation of the ZnO nanoflower. The ZnO nanoflower was dispersed in PDMS and coated onto cotton fabric to get the superhydrophobic fabric. The hydrophobicity was determined by measuring the water contact angle by the Sessile drop method and it was observed that coated fabrics have the highest contact angle, 140⁰ at 0.5% ZnO nanoflower concentration. The present study offers a method of fabrication of superhydrophobic cotton textile using ZnO nanoflower/PDMS polymer nanocomposites.

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A compound of ZnO/PDMS with photocatalytic, self-cleaning and antibacterial properties prepared via two-step method

Cited by 44 publications

References 30 publications

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

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

The Effect of Physiological Incubation on the Properties of Elastic Magnetic Composites for Soft Biomedical Sensors

Development of Superhydrophobic Cotton Fabric Using Zinc Oxide Nanoflower/Polydimethylsiloxane (PDMS) Nanocomposite Coatings

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