scholarly journals A novel stainless steel with intensive silver nanoparticles showing superior antibacterial property

2021 ◽  
Vol 9 (6) ◽  
pp. 270-277
Author(s):  
L. T. Liu ◽  
Y. Z. Li ◽  
K. P. Yu ◽  
M. Y. Zhu ◽  
H. Jiang ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Stainless Steel ◽  
Antibacterial Property

scholarly journals Stable Surface Technology for HER Electrodes

Catalysts ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 693
Author(s):  
Hong Soo Kim ◽  
Hwapyong Kim ◽  
Monica Claire Flores ◽  
Gyu-Seok Jung ◽  
Su-Il In
Keyword(s):  
Silver Nanoparticles ◽  
Stainless Steel ◽  
Noble Metal ◽  
Silver Nanoparticle ◽  
Alternative Energy ◽  
Water Electrolysis ◽  
Active Surface ◽  
Plasma Coating ◽  
Surface Shape ◽  
Active Surface Area

With the rapid increase in energy consumption worldwide, the development of renewable and alternative energy sources can sustain long-term development in the energy field. Hydrogen (H2), which is one of the clean chemical fuels, has the highest weight energy density and its combustion byproduct is only water. Among the various methods of producing hydrogen source, water electrolysis is a process that can effectively produce H2. However, it is difficult for commercialization of water electrolysis for H2 production due to the high cost and low abundance of noble metal-based cathodic electrode used for highly efficiency. Several studies have been conducted to reduce noble metal loading and/or completely replace them with other materials to overcome these obstacles. Among them, stainless steel contains many components of transition metals (Ni, Cr, Co) but have sluggish reaction kinetics and small active surface area. In this study, the problem of stainless steel was to be solved by utilizing the electrocatalytic properties of silver nanoparticles on the electrode surface, and electrodes were easily fabricated through the electrodeposition process. In addition, the surface shape, elemental properties, and HER activity of the electrode was analyzed by comparing it with the commercialized silver nanoparticle-coated invasive electrodes from Inanos (Inano-Ag-IE) through the plasma coating process. As a result, silver nanoparticle-coated conventional electrode (Ag-CE) fabricated through electrodeposition confirmed high HER activity and stability. However, the Inano-Ag-IE showed low HER activity as silver nanoparticles were not found. We encourage further research on the production process of such products for sustainable energy applications.

In vitro antibacterial property assessment of silver nanoparticles synthesized by Falcaria vulgaris aqueous extract against MDR bacteria

2019 ◽  
Vol 90 (2) ◽  
pp. 380-389 ◽  
Author(s):  
Iraj Kohsari ◽  
Mohammad Mohammad-Zadeh ◽  
Sara Minaeian ◽  
Morteza Rezaee ◽  
Azam Barzegari ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Aqueous Extract ◽  
Antibacterial Property ◽  
Falcaria Vulgaris ◽  
Property Assessment

Research on Relationship between Fabric Breaking Strength and Antibacterial Property about Cactus Silver Nanoparticles Treated on Silk Fabric

2011 ◽  
Vol 332-334 ◽  
pp. 116-120
Author(s):  
Hong Chao Miao ◽  
Bo Jun Xi ◽  
Hong Lin ◽  
Yu Yue Chen
Keyword(s):  
Silver Nanoparticles ◽  
Antibacterial Property ◽  
Breaking Strength ◽  
Raw Material ◽  
Added Value ◽  
Silk Fabric ◽  
Finishing Process ◽  
Dipping Temperature ◽  
Silk Fabrics ◽  
Natural Fabrics

Silk fabrics are highly popular with people for their excellent properties, with science and living standards progress, the natural and no added finishing method is pursuited by people especially, functional textile products become more and more popular. In this paper, silver nanoparticles were deoxygenated by using natural cactus solution. This silver nanaparticles were prepared under the unpolluted environment. The basic raw material is natural selection, preparation method is simple, non-polluting, eco-friendly and to address the reliability of a better way. Natural fabrics treated with natural plant, not only improve the added value of the product, but also achieve natural of the fabric, meet the requirements of the modern people. This research product the cactus silver nanoparticles silk fabric, demonstrated that the cactus solution can fix the nano-silver uniform on the surface of the silk fabric. Studied the antibacterial property of the silk fabric after finishing, discussed the fabric breaking strength and antibacterial property of silk fabric under different concentration、temperature and time. Finally, the best finishing process obtained is: 0.01mol/L silver ammonia is 2mL, the extract from cactus is 50mL, liquor ratio is 1:50, dipping temperature is 60°C, dipping time is 60min.

Antimicrobial Effects of Silver Nanoparticles against Bacterial Cells Adhered to Stainless Steel Surfaces

2012 ◽  
Vol 75 (4) ◽  
pp. 701-705 ◽  
Author(s):  
EMILIANE A. ARAÚJO ◽  
NÉLIO J. ANDRADE ◽  
LUIS HENRIQUE M. da SILVA ◽  
PATRÍCIA C. BERNARDES ◽  
ÁLVARO V. N. de C. TEIXEIRA ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Stainless Steel ◽  
Food Industry ◽  
Antimicrobial Activities ◽  
New Method ◽  
Resistant Bacteria ◽  
Bacterial Cells ◽  
Antimicrobial Effects ◽  
Log Reduction ◽  
Steel Surfaces

Given the increasing number of antibiotic-resistant bacteria and the need to synthesize new antimicrobials, silver has attracted interest in the scientific community because of its recognized antimicrobial activity. This study aimed to evaluate the antimicrobial effects of silver nanoparticles (NP) obtained by a new method and tested at concentrations of 6 μg/ml and 60 μg/ml against the species Staphylococcus aureus, Listeria innocua, Salmonella Choleraesuis, Pseudomonas aeruginosa, Escherichia coli, and Bacillus cereus. The ability of these nanoparticles to remove or kill vegetative cells adhered to stainless steel surfaces was also evaluated. We observed that the NP obtained with the new method, concentrated silver nanoparticles (CNP), and silver nanoparticles with added sodium chloride (NPNaCl) had high antimicrobial activities (P < 0.05). We also verified that the most effective condition for the removal of P. aeruginosa cells on stainless steel coupons (10 by 10 mm) was immersion of the surfaces in CNP. The CNP treatment produced a 5-log reduction of the microbial population after 30 to 60 min of immersion. The CNP treatment also performed better than water and sodium carbonate, a compound commonly applied in clean-in-place procedures in the food industry, in removing adherent B. cereus cells from stainless steel cylinders. Therefore, these results suggest that NP synthesized by a new procedure may be used as antimicrobials in the food industry, for example, for the sanitization of utensils that come into contact with foods.

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