scholarly journals Electrical explosion of wires for producing bimetallic Ti-Ag and Fe-Ag nanoparticles with antibacterial activity

Author(s):  
N.V. Svarovskaya ◽  
◽  
O.V. Bakina ◽  
A.V. Pervikov ◽  
K.V. Rubtsov ◽  
...  
2020 ◽  
Vol 62 (9) ◽  
pp. 1580-1586
Author(s):  
N. V. Svarovskaya ◽  
O. V. Bakina ◽  
A. V. Pervikov ◽  
K. V. Rubtsov ◽  
M. I. Lerner

2021 ◽  
Vol 63 (9) ◽  
pp. 1557-1561
Author(s):  
A. V. Pervikov ◽  
A. S. Lоzhkomoev ◽  
O. V. Bakina ◽  
M. I. Lerner

Author(s):  
Huu Dang ◽  
Derek Fawcett ◽  
Gerrard Eddy Jai Poinern

Background: This study for the first time presents an eco-friendly and room temperature procedure for biologically synthesizing silver (Ag) nanoparticles from waste banana plant stems.Methods: A simple and straightforward green chemistry based technique used waste banana plant stems to act as both reducing agent and capping agent to produce Ag nanoparticles, which were subsequently characterized. In addition, antibacterial studies were conducted using the Kirby-Bauer sensitivity method.Results: Advanced characterisation revealed the Ag nanoparticles had a variety of shapes including cubes, truncated triangular and hexagonal plates, and ranged in size from 70 nm up to 600 nm. The gram-negative bacteria Escherichia coli showed the maximum inhibition zone of 12 mm.Conclusions: The study has shown that waste banana plant stems can generate Ag nanoparticles with antibacterial activity against Escherichia coli and Staphylococcus epidermis.


2013 ◽  
Vol 872 ◽  
pp. 191-196 ◽  
Author(s):  
Farabi Bozheyev ◽  
Vladimir V. An ◽  
Yuriy Irtegov

Copper and molybdenum sulfide nanopowders were prepared by self-propagating high-temperature synthesis in argon. The initial copper powder and molybdenum powder were produced by electric spark dispersion in hexane and by electrical explosion of wires (EEW) in argon, respectively. The powders were studied by electron microscopy, X-ray diffraction and Raman spectroscopy. The copper sulfide main phase is hexagonal 2H-CuS, whereas hexagonal 2H-MoS2 and rhombohedral 3R-MoS2 are characteristic for molybdenum disulfide. The lattice parameters of copper and molybdenum sulfides were calculated. The average particle size of copper sulfide and molybdenum disulfide powders was about 50 nm and 80 nm, respectively.


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