Antibacterial activity of silver photodeposited nepheline thin film coatings

Ghafarinazari, A.; Moztarzadeh, F.; Rabiee, Sayed Mahmood; Rajabloo, Talieh; Mozafari, Masoud; Tayebi, Lobat

doi:10.1016/j.ceramint.2012.03.055

Cited by 34 publications

(15 citation statements)

References 35 publications

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“…Flat crystals, corresponding to the nepheline, which usually appears as hexagonal columns, short columns, or flat crystals, can be seen in all three samples in Figure 4. The similar microstructure was also evidenced in other studies related to nepheline [24,25]. The sizes of the flat crystals increased with the mass ratio of the calcined coal gangue and Al(OH) 3 Figure 4a, indicating that decreasing the component Al(OH) 3 can bring about nepheline grain growth.…”

Section: Mineral Phase and Microstructure Analysissupporting

confidence: 86%

Nepheline‐based water‐permeable bricks from coal gangue and aluminum hydroxide

et al. 2016

Env Prog and Sustain Energy

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Nepheline-based water-permeable bricks are prepared with coal gangue and aluminum hydroxide by raw material pretreating, mixing, isostatic molding, roasting, and self-curing. These bricks exhibit balance between their mechanical and water-permeable properties. In this study, two main factors, the raw material ratio and the molding pressure, are studied. The mineral phase, porous structure, and mechanical properties of the samples are characterized by X-ray diffraction, scanning electron microscopy and mercury injection, respectively. The compressive strength and water permeability of the bricks meet

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Section: Mineral Phase and Microstructure Analysissupporting

confidence: 86%

Nepheline‐based water‐permeable bricks from coal gangue and aluminum hydroxide

et al. 2016

Env Prog and Sustain Energy

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“…Strontium is a bone-seeking element and its dose concentration affects bone metabolism. At low dose levels, strontium contributes significantly to new bone formation and biomaterials containing strontium are excellent for bone repair applications [20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Enhanced antimicrobial properties of bioactive glass using strontium and silver oxide nanocomposites

Ranga

Poonia

Jakhar

et al. 2019

Journal of Asian Ceramic Societies

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Bioactive glass has a wide range of biomedical applications. It has attracted immense interest due to its unique ability to bond with a bone through ion exchange in simulated body fluid (SBF) when implanted inside the body. This study concerns sol-gel synthesis of a new bioactive glass composition: 55SiO 2 -40CaO-(5-x) SrO-xAg 2 O doped with different mol% of silver as an antibacterial agent, i.e. 0%, 2% and 4% AgSr(0), AgSr(2) & AgSr(3), respectively. This method is a widely used in the preparation of glass ceramics because of its lowtemperature. The effect of introducing strontium in addition to silver as an antimicrobial agent into the bioglass matrix was studied. Structural studies were conducted using various techniques including Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Field emission scanning electron microscope (FE-SEM) and High-resolution transmission electron microscopy (HR-TEM). Bioactivity was investigated by in-vitro synthesis involving immersion of the samples in SBF for different time intervals. The XRD, FTIR and FE-SEM results confirmed the formation of a hydroxylapatite layer on the surface of the finally prepared bioglass materials. An antimicrobial study revealed that the prepared bioactive glass showed a significant effect on two bacteria E. coli and S. aureus. ARTICLE HISTORY

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“…They were reported that they could kill even fungi, yeast, as well as virus [9]. Hence, there are many products using AgNPs as antibacterial agents such as disinfectant for wound cleaning, laundry machine and clothes [10]. So, it is interesting to develop anodized aluminum alloy surface enhanced with antibacterial property by deposition AgNPs into the anodic aluminum oxide film.…”

Section: Introductionmentioning

confidence: 99%

Antibacterial and Corrosion Resistance Properties of Anodized AA6061 Aluminum Alloy

Pornnumpa¹,

Jariyaboon²

2019

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Anodizing is one of the surface treatments for aluminum and its alloys. It is commonly used to increase corrosion resistance and mechanical properties. This technique is also applied for decorative purpose. Therefore, anodized aluminum alloys are widely used in many applications such as household structure, cell-phone case, automobile and aircrafts. Anodic aluminum oxide (AAO) structure, which has a pore at the center of each hexagonal cell arrangement, is created after anodizing process. To further enhance the property of anodized aluminum alloys, antibacterial property can be produced on AAO surface by deposition of nanoparticles into its pore structure. In this work, AA6061-T6 aluminum alloy was anodized at 12 V using 20%w/v H2SO4 at temperature of 17±1°C for 30 minutes. AgNO3 solution was used for producing Ag nanoparticles. Effects of AgNO3 concentrations on antibacterial and corrosion resistance properties of anodized AA6061 aluminum alloy were studied. Antibacterial property was investigated on both gram-positive (S.aureus) and gram-negative (E.coli) bacteria according to JIS Z 2801 standard test for three months after exposure to ambient environment. 100% reduction of S.aureus was achieved, whereas 97.3% reduction of E.coli was obtained when using 1mM AgNO3. However, the deposition of Ag nanoparticles resulted in a slight increase in corrosion susceptibility.

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Antibacterial activity of silver photodeposited nepheline thin film coatings

Cited by 34 publications

References 35 publications

Nepheline‐based water‐permeable bricks from coal gangue and aluminum hydroxide

Nepheline‐based water‐permeable bricks from coal gangue and aluminum hydroxide

Enhanced antimicrobial properties of bioactive glass using strontium and silver oxide nanocomposites

Antibacterial and Corrosion Resistance Properties of Anodized AA6061 Aluminum Alloy

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