نتایج جستجو برای: cuo nanoparticle

تعداد نتایج: 34780  

2016
Sadaf Anwaar Qaisar Maqbool Nyla Jabeen Mudassar Nazar Fazal Abbas Bushra Nawaz Talib Hussain Syed Z. Hussain

In this study, we have investigated the effect of copper oxide nanoparticles (CuO-NPs) on callogenesis and regeneration of Oryza sativa L (Super Basmati, Basmati 2000, Basmati 370, and Basmati 385). In this regard, CuO-NPs have been bio-synthesized via Azadirachta indica leaf extract. Scanning electron microscope (SEM) analysis depicts average particle size of 40 ± 5 nm with highly homogenous a...

Journal: :Chemistry: A European Journal 2021

Functionalization of photocatalytic metal oxide nanoparticles TiO2, ZnO, WO3 and CuO with amine-terminated (oleylamine) thiol-terminated (1-dodecanethiol) alkyl chained ligands was studied under ambient conditions. A high selectivity observed in the binding specificity a ligand towards these different oxides. It that oleylamine binds stably to only TiO2 WO3, while 1-dodecanethiol ZnO CuO. Simil...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2013
Guoliang Liu Daniel J Eichelsdoerfer Boris Rasin Yu Zhou Keith A Brown Xing Liao Chad A Mirkin

Although nanoparticles with exquisite properties have been synthesized for a variety of applications, their incorporation into functional devices is challenging owing to the difficulty in positioning them at specified sites on surfaces. In contrast with the conventional synthesis-then-assembly paradigm, scanning probe block copolymer lithography can pattern precursor materials embedded in a pol...

2012
Ameer Azam Arham S Ahmed M Oves MS Khan Adnan Memic

BACKGROUND 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. Here we synthesized different sized CuO nanoparti...

2016
Sadia Saif Arifa Tahir Tayyaba Asim Yongsheng Chen

Research on green production methods for metal oxide nanoparticles (NPs) is growing, with the objective to overcome the potential hazards of these chemicals for a safer environment. In this study, facile, ecofriendly synthesis of copper oxide (CuO) nanoparticles was successfully achieved using aqueous extract of Pterospermum acerifolium leaves. P. acerifolium-fabricated CuO nanoparticles were f...

Journal: :Physical review letters 2014
S Moser L Moreschini H-Y Yang D Innocenti F Fuchs N H Hansen Y J Chang K S Kim A L Walter A Bostwick E Rotenberg F Mila M Grioni

We investigate by angle-resolved photoemission the electronic structure of in situ grown tetragonal CuO, a synthetic quasi-two-dimensional edge-sharing cuprate. We show that, in spite of the very different nature of the copper oxide layers, with twice as many Cu in the CuO layers of tetragonal CuO as compared to the CuO(2) layers of the high-T(c) cuprates, the low-energy electronic excitations ...

Journal: :ACS applied materials & interfaces 2010
A Torres C Ruales C Pulgarin A Aimable P Bowen V Sarria J Kiwi

This study presents the first report on enhanced bacterial inactivation of E. coli by RF-plasma pretreated cotton with high-surface-area CuO powders compared with nonpretreated cotton textiles. The high-surface-area CuO (65 m/g) powder was fully characterized. The E. coli inactivation proceeded in the dark and was accelerated under visible and sunlight irradiation even at very low levels of vis...

2012
K. Kannaki P. S. Ramesh D. Geetha

The CuO nano particles were synthesized from copper sulfate pentahydrate aqueous solution under the low hydrothermal condition at 80°C.The average crystallite size was calculated from De-Bye Scherrer’s equation. SEM/EDS,XRD were used to characterize the structure features of the product. FTIR spectra confirmed the adsorption of ammonia on the surface of the CuO nanoparticles. In addition, UV-vi...

Journal: :Nanotechnology 2011
J X Wang X W Sun Y Yang K K A Kyaw X Y Huang J Z Yin J Wei H V Demir

A modified hydrothermal method was developed to synthesize ZnO-CuO composite nanostructures. A free-standing film made of ZnO-CuO nanostructures was assembled on the surface of the hydrothermal solution with a smooth surface on one side and a spherical surface on the other side. The structure, growth mechanism and the optical properties of the composite nanostructures were studied. Structural c...

Journal: :Physical chemistry chemical physics : PCCP 2014
Paweł Tecmer Katharina Boguslawski Örs Legeza Markus Reiher

The accurate description of the complexation of the CUO molecule by Ne and Ar noble gas matrices represents a challenging task for present-day quantum chemistry. Especially, the accurate prediction of the spin ground state of different CUO-noble-gas complexes remains elusive. In this work, the interaction of the CUO unit with the surrounding noble gas matrices is investigated in terms of comple...

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