Far-UVC irradiation (222 nm) is an emerging approach for disinfection due to its effectiveness and potentially harmless nature humans by direct compared with other UV wavelengths.

Ultraviolet-C (UVC) radiation-based sanitization has globally gained enormous importance in the current COVID-19 (caused by SARS-COV-2 virus) pandemic situation. The effectiveness of radiation is quantified terms ‘radiation dose’, which turn derived from a radiometric parameter ‘irradiance’, measured using UVC radiometer. Metrological traceability irradiance/dose measurement essentially require...

BACKGROUND Collagens have the well-known ability to spontaneously self-associate to form fibrils at physiological temperature and neutral pH in vitro and in vivo. Because solar UV may photochemically alter collagen, the kinetics of fibril formation may be modified. Thus, we have begun a systematic study of the effect of various UV wavebands on fibril formation. METHODS Citrate-soluble calf sk...

For years, gas chlorination has been the adopted disinfection technology in treatment of Maltese potable water. Despite its strong bacterial inactivation potential, traditional generates high free chlorine residual and by-products that compromise sensory attributes drinking water deter population from consuming it. We have identified plausible alternative-to-gas-chlorination technologies for tr...

Objective and background: Light-based antimicrobials, mainly ultraviolet C (UVC) laser light irradiation, have a potential to inactivate severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The aim of our study was evaluate the effect transbronchial intravenous application UVC irradiation on treatment patients with COVID-19. Methods: clinical outcome six (age 42-69 years) COVID-19 infe...

Viruses are minuscule parasites that have gained notoriety for causing diseases. However, these harmful pathogens can be inactivated using Ultraviolet-C (UVC) radiation has a wavelength between 200 – 280 nm. The wavelengths of the UVC responsible germicidal effect as proteins (e.g. RNA and DNA) absorb maximum in damage DNA viruses so they cannot replicate. This project aimed to simulate light i...

Radiation resistant bacteria have adopted a variety of ingenious strategies for survival under the high dose of radiation, for example through their pigments. In the present study, two ultraviolet-C (UVC) radiation tolerant bacteria, named NM1 and NM3 strains, were isolated from the industrial waste and soil that identified by the molecular analysis. Survival assay of irradiated bacteria was pe...