Carbon nitride based materials incorporating K and Na alkali ions were used as support(s) to deposit platinum. The systems tested in the photo-production of hydrogen using methanol a sacrificial molecule. Tests under UV sunlight-type illumination conditions showed an important promoting effect irrespective source characteristics. measurement quantum efficiency was quantitatively assess performa...

For practical applications, increasing the photosensitivity, response speed, and selectivity of UV photodetectors is a prerequisite. Many research studies on Si-based photodiodes, the most common devices for UV detection, have been conducted to improve their photosensitivity. The calculated photoresponsivities of these devices were typically less than 10 A W . Although these studies showed an i...

Photolyase absorbs blue light and employs the energy to remove UV-induced DNA damage, cyclobutane pyrimidine dimers, or pyrimidine pyrimidone (6-4) lesions. These enzymes have been found in many living organisms ranging from bacteria to aplacental mammals, but their photoreactivation effect, such as survival increase of UV-irradiated cells by light-illumination, has not been identified in place...

Rnf complexes are redox-driven ion pumps identified in diverse species from the domains Bacteria and Archaea, biochemical characterizations of which are reported for two species from the domain Bacteria. Here, we present characterizations of the redox-active subunits RnfG and RnfB from the Rnf complex of Methanosarcina acetivorans, an acetate-utilizing methane-producing species from the domain ...

SARS-CoV-2 is frequently transmitted by aerosol, and the sterilization of virus in airflows has numerous potential applications. We evaluated a UV-C illuminator similar to what might be incorporated into tubing mechanical ventilator for its ability block transmission airborne from infected naïve hamsters. Hamsters protected UV system were consistently infection, whereas non-protected hamsters u...

BACKGROUND The Intercept Blood SystemTM (Cerus) is used to inactivate pathogens in platelet concentrates (PC). The aim of this study was to elucidate the extent to which the Intercept treatment modifies the functional properties of platelets. MATERIAL AND METHODS A two-arm study was conducted initially to compare buffy coat-derived pathogen-inactivated PC to untreated PC (n=5) throughout stor...

background: adverse effect of sun rays mainly uv ray on the human eye documented and protection of eyes is necessary using different methods such as, sun glasses. sunglasses are designed in different colors. the aim of this study was evaluation of the effect of different colors of sunglasses on the visual acuity, contrast sensitivity, stereopsis and color vision. methods: 81 normal subjects wer...