THE RELATIONSHIP BETWEEN CUPRIC ION ACTIVITY AND THE TOXICITY OF COPPER TO PHYTOPLANKTON

Abstract Electromagnons (Electroactive spin wave excitations) could prove to be decisive in information technologies but they remain fragile quantum objects, mainly existing at low temperatures. Any future technological application requires overcoming these two limitations. By means of synchrotron radiation infrared spectroscopy performed the THz energy range and under hydrostatic pressure, we ...

We investigated the room-temperature chemisorption of oxygen on Cu(1 0 0) and 1 1) using ambient-pressure X-ray photoelectron spectroscopy (APXPS). A shoulder-to-shoulder comparison between oxygen-gas titration two surfaces reveals that is more active for dissociative when are clean. The (2 2 × 2)R45o missing-row reconstruction appears in 0)’s LEED image after about 104 Langmuir exposure, where...

it has been investigated the in vitro antioxidant properties of ethanol extracts of the contained-allantoin plants in this study. contained-allantoined plant samples plantago lanceolata, plantago major, robinia pseudoacacia, platanus orientalis and aesculus hippocastanum were tested at different concentrations. the antioxidant activities of plant samples were analysed by 1,1- diphenyl-2-picrylh...

Wildfire greatly impacts the composition and quantity of organic carbon stocks within watersheds. Most methods used to measure the contributions of fire altered organic carbon-i.e. pyrogenic organic carbon (Py-OC) in natural samples are designed to quantify specific fractions such as black carbon or polyaromatic hydrocarbons. In contrast, the CuO oxidation procedure yields a variety of products...

The contamination of arsenic in human drinking water supplies is a serious global health concern. Despite multiple years of research, sustainable arsenic treatment technologies have yet to be developed. This study demonstrates the intrinsic abilities of cupric oxide nanoparticles (CuO-NP) towards arsenic adsorption and the development of a point-of-use filter for field application. X-ray diffra...

This study describes a straightforward protocol for synthesizing cupric oxide nanoparticles from the peel extract of Spondias mombin. The CuO NPs were produced in basic H2O solution as cubic-shaped, homogenous with excellent peroxidase activity without taking any special precautions. influence concentration extract, temperature well synthesis medium on production has been investigated extensive...

Nanoparticles of a transitional metal oxide such as Copper (II) or cupric have gained considerable interest in the research and development community due to corresponding conventional materials' extremely different characteristics. Hence, this study aimed at characterizing nanoparticles synthesized through direct green chemical approach using outer leafy cover maize husk. The fresh husk's optic...