Results 31 to 40 of about 1,513,533 (149)

Synergistic effect of copper oxide nanoparticles and chloramphenicol antibiotic on MexA gene expression of pump efflux system in drug-resistant Pseudomonas aeruginosa isolates [PDF]

open access: yesمجله پزشکی دانشگاه علوم پزشکی تبریز, 2022
Background. Pseudomonas aeruginosa is a causative agent of nosocomial infections. Chloramphenicol is a broad-spectrum, inexpensive, and common antibiotic. MexAB-OprM is a secretory pump that causes the innate resistance of this bacterium.
Faten Alazavi   +2 more
doaj   +1 more source

Review of the development of copper oxides with titanium dioxide thin-film solar cells

open access: yesAIP Advances, 2020
Copper oxide-titanium dioxide (TiO2) p–n junctions are promising materials for photovoltaic devices and may reduce production costs due to their low cost and inexpensive production methods compared with silicon solar cells.
Paulina Sawicka-Chudy   +5 more
doaj   +1 more source

Gas sensing properties of multicomponent systems based on oxides of manganese, copper and yttrium [PDF]

open access: yesОмский научный вестник, 2020
The composites based on manganese oxide (MnO2–х), copper oxide (CuO) and yttrium oxide (Y2 O3) are obtained. The gas response and selectivity of multicomponent composites to toxic and hazardous gases are found.
Yu. A. Stenkin   +2 more
doaj   +1 more source

A sight of view on hydrothermal synthesis of copper oxide [PDF]

open access: yesEngineering and Technology Journal, 2023
In this study, attention was directed to the preparation of nano-copper oxide films and their multiple applications, where a group of recent researches were presented and compared to reach the optimal phase, then the optimal application, and finally the ...
Roaa Abaas, Evan Salim, Rana Mahdi
doaj   +1 more source

Green synthesis of nano-copper oxide using Sargassum sp. functionalized in cellulose acetate membrane for dye adsorption [PDF]

open access: yesGlobal Journal of Environmental Science and Management
BACKGROUND AND OBJECTIVES: Nanoparticles are presently employed in a multitude of applications due to their advantageous features, which encompass simplicity, non-toxicity, affordability, lack of pollutants, and environmentally friendly process ...
U. Yanuhar   +4 more
doaj   +1 more source

Acid leaching of oxide-sulphide copper ore prior the flotation: A way for an increased metal recovery [PDF]

open access: yesHemijska Industrija, 2015
Copper mine "Cerovo"- East Serbia as well as the other ore bodies in its vicinity contain a significant amount of oxide copper minerals in their uper layers (>40%).
Sokić Miroslav D.   +4 more
doaj   +1 more source

Comparative Studies on the Interaction of Proteinase-K with Nano-CuO and Copper Ions [PDF]

open access: yesJournal of Nanostructures, 2012
The interaction of copper oxide nanoparticles and copper ions and proteinase K from Tritirachium album Limber has been investigated employing UV spectroscopy and kinetics measurements.
P. Nooraei   +4 more
doaj   +1 more source

Copper Nanoparticles Prepared fromOxalic Precursors [PDF]

open access: yes, 2011
The synthesis of nanoparticles of copper metal via a soft chemistry route is presented in this paper. The method is based on the thermal decomposition under nitrogen or hydrogen of oxalic precursors with a well-controlled morphology and particle size ...
Philippe Tailhades   +5 more
core   +1 more source

Research Status and Prospects of Flotation Methods and Reagents for Oxidized Copper Ore

open access: yesKuangchan zonghe liyong
This is an article in the field of mineral processing engineering. Copper is an important non-ferrous metal resource. With the increasing reduction of easily processed copper sulfide, the development and utilization of copper oxide is an important ...
Yuemeng LIN   +5 more
doaj   +1 more source

Dielectric properties of CaCu3Ti4O12 based multiphased ceramics [PDF]

open access: yes, 2006
A “soft chemistry” method, the coprecipitation, has been used to synthesize the perovskite CaCu3Ti4O12 (CCT). Three main types of materials were obtained for both powders and sintered ceramics: a monophased consisting of the pure CCT phase, a biphased ...
Durand, Bernard   +4 more
core   +1 more source

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