Novel approach to fabricate polycarbonate antibacterial superhydrophobic surfaces

Sabry, Raad S.; Al-Mosawi, Muntazer I.

doi:10.1080/01694243.2017.1303880

Cited by 10 publications

(5 citation statements)

References 23 publications

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“…In recent years, Ag nanoparticles (Ag NPS) is an important nanomaterial for antibacterial, pharmaceutical, cosmetic, industrial, and drug delivery applications due to their aspect ratio and activity. Besides, Ag NPs have strong antiviral and antibacterial activities 18–20 . The antibacterial function of Ag NPs is achieved by producing reactive oxygen species and free radicals to cause physical damage to cell membranes 18–20 .…”

Section: Introductionmentioning

confidence: 99%

“…[18][19][20] The antibacterial function of Ag NPs is achieved by producing reactive oxygen species and free radicals to cause physical damage to cell membranes. [18][19][20] Releasing silver ions instead of biocides to cause the dysfunction of bacteria is a green and environment-friendly antibacterial strategy. 21 At present, there are some reports on the preparation of superhydrophobic films with environmentally-friendly waterborne coatings.…”

Section: Introductionmentioning

confidence: 99%

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The preparation of cotton fabric with super‐hydrophobicity and antibacterial properties by the modification of the stearic acid

Yang

et al. 2021

J of Applied Polymer Sci

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In this article, the superhydrophobic and antibacterial surface on the cotton fabric were fabricated with the UV curable waterborne coatings, the silver nanoparticles, and the stearic acid. The cotton fabric coated with silver stearate was obtained by immersing in a mixture of sodium hydroxide and then modified by stearic acid. Results showed that the water contact angle on the surface of the fabric was 157.6°. The micromorphology and chemical ingredients of the surface of the coating were studied by scanning electron microscope, Fourier transforms infrared spectroscopy, and X photoelectric spectrometer. Results showed that the immersion resulted in a double decomposition reaction and with the modification of the stearic acid, the silver stearate was formed on the surface, which provided a rough surface required for super‐hydrophobicity. And the acid and alkali resistance test, water‐resistance test, and antibacterial activity test indicated that the coating had good acid and alkaline resistance, water‐resistance, and antibacterial properties.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The preparation of cotton fabric with super‐hydrophobicity and antibacterial properties by the modification of the stearic acid

Yang

et al. 2021

J of Applied Polymer Sci

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“…The second important aspect of the character of the surface of PC is its wettability. The wettability of native PC surface (contact angle is 84 • ) into a hydrophobic or even superhydrophobic material is possible via physical [6][7][8][9][10][11][12][13][14][15][16] or chemical modification [17]. The physical approach uses surface texturing via controlled laser ablation [9,10,14] or via solvent induced crystallization of polycarbonate [6][7][8][11][12][13]15,16].…”

Section: Introductionmentioning

confidence: 99%

“…The wettability of native PC surface (contact angle is 84 • ) into a hydrophobic or even superhydrophobic material is possible via physical [6][7][8][9][10][11][12][13][14][15][16] or chemical modification [17]. The physical approach uses surface texturing via controlled laser ablation [9,10,14] or via solvent induced crystallization of polycarbonate [6][7][8][11][12][13]15,16]. To put it another way, a hierarchical surface structure obtained by physical modification (texturing geometry and depth) strongly increases the surface roughness [18,19].…”

Section: Introductionmentioning

confidence: 99%

“…Different types of hierarchical structures (pores, cavities and pillars) can be fabricated with the use of lasers, which consequently yields increasing the PC static contact angle from 84 • to 120 • [9,14] or even 155 • [10]. Another physical approach employs a phase separation process with the use of chemical solvents such as: dichloromethane [8], acetone [7,11,12,16], dimethylformamide [6] or a mixture of the last two [13,15]. The resulting surface texture depends on the parameters of the process such as: the type and concentration of solvent, temperature and process duration.…”

Section: Introductionmentioning

confidence: 99%

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A Method for Simultaneous Polishing and Hydrophobization of Polycarbonate for Microfluidic Applications

2020

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Here we present a new methodology for chemical polishing of microchannels in polycarbonate (PC). Tuning the time of exposition and the concentration of ammonia, the roughness arising from the micromachining process can be significantly reduced or completely removed while preserving the structure of microchannels. Besides smoothing out the surface, our method modifies the wettability of the surface, rendering it hydrophobic. The method increases the optical transparency of microchannels and eliminates undesired effects in two-phase microfluidic systems, including wetting by aqueous solutions and cross-contamination between aqueous droplets that could otherwise shed satellites via pinning.

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Recent Advances in Dual‐Function Superhydrophobic Antibacterial Surfaces

Jia

Lin

Zou

et al. 2023

Macromolecular Bioscience

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Bacterial adhesion and subsequent biofilm formation on the surfaces of synthetic materials imposes a significant burden in various fields, which can lead to infections in patients or reduce the service life of industrial devices. Therefore, there is increasing interest in imbuing surfaces with antibacterial properties. Bioinspired superhydrophobic surfaces with high water contact angles (>150°) exhibit excellent surface repellency against contaminations, thereby preventing initial bacterial adhesion and inhibiting biofilm formation. However, conventional superhydrophobic surfaces typically lack long‐term durability and are incapable of achieving persistent efficacy against bacterial adhesion. To overcome these limitations, in recent decades, dual‐function superhydrophobic antibacterial surfaces with both bacteria‐repelling and bacteria‐killing properties have been developed by introducing bactericidal components. These surfaces have demonstrated improved long‐term antibacterial performance in addressing the issues associated with surface‐attached bacteria. This review summarizes the recent advancements of these dual‐function superhydrophobic antibacterial surfaces. First, a brief overview of the fabrication strategies and bacteria‐repelling mechanism of superhydrophobic surfaces is provided and then the dual‐function superhydrophobic antibacterial surfaces are classified into three types based on the bacteria‐killing mechanism: i) mechanotherapy, ii) chemotherapy, and iii) phototherapy. Finally, the limitations and challenges of current research are discussed and future perspectives in this promising area are proposed.

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Novel approach to fabricate polycarbonate antibacterial superhydrophobic surfaces

Cited by 10 publications

References 23 publications

The preparation of cotton fabric with super‐hydrophobicity and antibacterial properties by the modification of the stearic acid

The preparation of cotton fabric with super‐hydrophobicity and antibacterial properties by the modification of the stearic acid

A Method for Simultaneous Polishing and Hydrophobization of Polycarbonate for Microfluidic Applications

Recent Advances in Dual‐Function Superhydrophobic Antibacterial Surfaces

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