Non-diapausing spider mites (Tetranychus urticae) live on the undersurface of host leaves during summer, but diapausing mites overwinter in dark hibernacula. The light environments of these habitats differ: visible radiation (VIS) but not ultraviolet radiation (UV) reaches the undersurface of leaves, but neither enters dark hibernacula. Thus, mites of either seasonal form could locate their pre...

The single-cell gel/comet assay is an electrophoretic technique used to detect single-strand breaks in DNA. Damage is assessed examining individual cells under an epifluorescent microscope. UV-induced DNA damage consists mostly of the formation of pyrimidine dimers; therefore, most of the damage cannot be detected using a standard comet assay. The enzyme T4 endonuclease V breaks DNA strands at ...

Green methods of synthesizing nanoparticles are safer than chemical and physical methods, as well being eco-friendly cost-efficient. In this study, we use copper oxide (CuO NPs) fabricated with Sesbania grandiflora (Sg) (Hummingbird tree) leaves to test the effectiveness green methods. The attained Sg-CuO NPs optical nature is characterized by UV-Vis spectroscopy Differential Reflectance Spectr...

Sol-gel technique was used to coat multiwall carbon nanotubes (MWCNTs) with anatase titania to increasing the surface area and improve the photocatalytic activity of TiO2. Room temperature ballistic conduct of MWCNT combined with semiconducting behavior of anatase brought about a photocatalytic improvement of ~37 % with respect to the highest methyl orange decolorization flair. For characteriza...

BiOCl microflowers were synthesized using bismuth nitrate pentahydrate and sodium chloride by microwave (MW) assisted synthesis method for 23 minutes at 180 W. Scanning electron microscopy (SEM) studies revealed a unique morphology of flower-like assemblies comprised of nanosheets. The X-ray diffraction (XRD) pattern showed that a highly pure and crystalline phase has been obtained. The energy ...

Semiconductor materials are the basis of electronic devices employed in communication and media industry. In present work, we report synthesis characterization mixed metal oxides (MOs) as p,n-junction photocatalysts, demonstrate correlation between preparation technique properties materials. Solid-state UV-visible diffuse reflectance spectroscopy (UV-VIS DRS) allowed for determination light abs...

In this study, several ZnO catalysts were prepared using different zinc sources as precursors. The different catalyst morphologies obtained were used to degrade photocatalytically a methyl orange (MO) dye solution, which was used to model wastewater pollution. The precursors, Zn(CH3COO)2, ZnCl2 and Zn(NO3)2, were individually added to a solution containing cetyltrimethylammonium bromide (CTAB) ...

Significance: Real-time information about oxygen delivery to the hepatic graft is important direct care and diagnose vascular compromise in immediate post-transplant period. Aim: The current study was designed determine utility of visible diffuse reflectance spectroscopy (vis-DRS) for measuring liver tissue saturation vivo. Approach: A custom-built vis-DRS probe calibrated using phantoms with h...