Abstract In the current study, effect of CuO nanoparticles (CuO-NPs) at presence dodecyl-3-methylimidazolium chloride ([C 12 mim][Cl]) is investigated on interfacial tension (IFT) reduction, wettability alteration, and even tertiary oil recovery. Since prepared solutions with CuO-NPs are completely dark it impossible to measure IFT these in crude using pendant drop method (since one phases must...

This paper presents results of investigations on the application of CuO-water nanofluids for intensification of convective heat transfer. Performance of nanofluids with 2.2 and 4.0 vol.% CuO NPs (nanoparticles) content were examined with regard to heat transfer coefficient and pressure losses in case of turbulent flow in a tube. Negligible impact of examined nanofluid on heat transfer improveme...

Abstract In the present work, gas sensor arrays consisted of four different sensing materials based on CuO and their depositions MEMS microheaters were designed, fabricated characterized. The array is with CuO, Pt NPs, ZnO–CuO Au NPs properties are characterized for detection exhaled breath-related VOCs. Through microheaters, power consumption considered application to healthcare devices which ...

Metal oxide nanoparticles (NPs) have been widely used in industrial and agricultural production introduced into soils. The impact of these on soil nitrous (N2O) emission is unclear. We conducted a microcosm experiment to investigate the effects titanium (TiO2 NPs), copper (CuO aluminum (Al2O3 NPs) N2O emissions abundance functional genes related production/reduction. Compared without NPs additi...

Abstract In this work, CuO-loaded tetragonal SnO 2 nanoparticles (CuO/SnO NPs) were synthesized using precipitation/impregnation methods with varying Cu contents of 0–25 wt% and characterized for H S detection. The material phase, morphology, chemical composition, specific surface area NPs evaluated X-ray diffraction, transmission electron microscopy, scanning energy-dispersive spectroscopy, ph...

Background: The development of dental caries around orthodontic brackets is a common complication treatment. Objectives: This study aimed to compare the antibacterial efficacy stainless steel (SS) coated with copper oxide nanoparticles (CuO-NPs), titanium dioxide (TiO2-NPs), and hydroxyapatite silver (HA-SNPs) against Streptococcus mutans. Methods: In this in vitro, experimental study, 20 were ...

Nanoparticles have long been known and their biomedical potent activities proven that these can provide an alternative to other drugs. In the current study, copper oxide, nickel oxide copper/nickel hybrid NPs were biosynthesized by using Curcuma longa root extracts as a reducing capping agent, followed characterization via UV-spectroscopy, Fourier transformed infrared spectroscopy (FTIR), energ...

The Caspian trout is an endangered and quite vulnerable fish, considered for a natural protection program in the southern area of the Caspian Sea. Copper oxide nanoparticles (CuO-NPs) are toxic substances, which induce oxidative stress, not to mention other pathophysiological states. The toxicity of nanoparticles on fish needs more characterization for short- and long-term effects.  Thus, the p...

Objective(s): CuO is one of the most important transition metal oxides due to its captivating properties. It is used in various technological applications such as high critical temperature superconductors, gas sensors, in photoconductive applications, and so on. Recently, it has been used as an antimicrobial agent against various bacterial species. Materials and Methods: Here, we synthesized Cu...