Comparative Antibacterial Effects of a Novel Copper and Silver- Based Core/Shell Nanostructure by Sonochemical Method

In this study, the antibacterial effect of novel copper (Cu) and silver (Ag) metal-based core-shell nanostructures against Escherichia coli (E. coli-Gram negative) was investigated. The novel copper- and silver-based nanostructures were prepared separately by using nontoxic, biodegradable, and bioco...

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Main Authors: Karakus, Selcan (Author), Tan, Ezgi (Author), Ilgar, Merve (Author), Basdemir, Ismail Sıtkı (Author), Kilislioglu, Ayben (Author)
Format: Ebooks
Published: IntechOpen, 2018-11-05.
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042 |a dc 
100 1 0 |a Karakus, Selcan  |e author 
700 1 0 |a Tan, Ezgi  |e author 
700 1 0 |a Ilgar, Merve  |e author 
700 1 0 |a Basdemir, Ismail Sıtkı  |e author 
700 1 0 |a Kilislioglu, Ayben  |e author 
245 0 0 |a Comparative Antibacterial Effects of a Novel Copper and Silver- Based Core/Shell Nanostructure by Sonochemical Method 
260 |b IntechOpen,   |c 2018-11-05. 
500 |a https://mts.intechopen.com/articles/show/title/comparative-antibacterial-effects-of-a-novel-copper-and-silver-based-core-shell-nanostructure-by-son 
520 |a In this study, the antibacterial effect of novel copper (Cu) and silver (Ag) metal-based core-shell nanostructures against Escherichia coli (E. coli-Gram negative) was investigated. The novel copper- and silver-based nanostructures were prepared separately by using nontoxic, biodegradable, and biocompatible biopolymers chitosan and guar gum-polyvinyl alcohol (GG-PVA), which were modified by inorganic phases SiO2 and sepiolite. On the other hand, guar gum-PVA (GG-PVA) was modified by sepiolite, and this nanostructure was prepared only for silver. Besides, Cu was dispersed in a different biopolymer chitosan by sonochemical method in the presence and absence of SiO2. X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and X-ray diffraction (XRD) techniques were used to characterize the surface chemistry and morphology of the core/shell nanostructure. Nanoscale zero-valent Cu (NZVCu) was found under thin CuO film according to the XPS results. SEM images showed that spherical Cu/CuO@SiO2 nanostructures (∼100 nm) were homogenously dispersed in the chitosan by using sonochemical method. Antibacterial property of the core-shell nanostructures was analyzed by well-diffusion method against Escherichia coli (E. coli-Gram negative). Cu/CuO@SiO2 nanostructures were found very effective against the E. coli due to high ratio of NZVCu in the nanostructure. 
540 |a https://creativecommons.org/licenses/by/3.0/ 
546 |a en 
690 |a New Trends in Ion Exchange Studies 
655 7 |a Chapter, Part Of Book  |2 local 
786 0 |n https://www.intechopen.com/books/6694 
787 0 |n ISBN:978-1-78984-247-0 
856 \ \ |u https://mts.intechopen.com/articles/show/title/comparative-antibacterial-effects-of-a-novel-copper-and-silver-based-core-shell-nanostructure-by-son  |z Get Online