This paper presents UV imprinting methods for fabricating a high-aspect-ratio pillar array. A polydimethylsiloxane (PDMS) mold was selected as the UV imprinting mold. The pillar pattern was formed on a 50 × 50 mm area on a polyethylene terephthalate (PET) film without remarkable deformation. The aspect ratios of the pillar and space were about four and ten, respectively. The mold was placed int...

The design of the sterilization box is based on ATmega2560 microcontroller which utilizes concept 254 nanometer UV-C shortwave radiation and disinfectant spray to increase effectiveness box. In order prevent transmission through touch from users physical contact via box, researchers designed a system that can make access without need with device, namely by using IoT help applications be accesse...

Urocanic acid (UCA) is a major UV chromophore in the upper layers of the skin where it is found predominantly as the trans isomer. UV irradiation induces photoisomerisation of trans-UCA to cis-UCA which has been shown to mimic some of the immunosuppressive properties of UV exposure. We examined the wavelength dependence for trans-UCA to cis-UCA photoisomerisation in vitro and in mouse skin in v...

Listeria monocytogenes has been repeatedly isolated from foods and food-processing facilities including food contact surfaces such as conveyor belts (CB). CBs are often difficult to clean and require rigorous sanitation programs for decontamination. Ultraviolet (UV) light has exhibited microbicidal properties on food contact surfaces and this study was conducted to determine the efficacy of UV ...

In order to increase the water content and the oxygen permeability of hydrogels used in themanufacture of contact lenses, the polar monomer Silicon Hydrogel Contact Lenses (SHCL), and 2-hydroxyethyl methacrylate (HEMA) were copolymerized with the hydrogels. Due to the presence ofpolar monomers in the conventional contact lenses, the major component of the human tear,lysozyme is extensively adso...

Backgrounds & objectives: Heavy metals, such as chromium, are the most common pollutants usually found in high concentrations in industrial wastewater and cause damages to aquatic environments and endanger the health of living organisms, especially human. Therefore, the purpose of this research was to investigate the photocatalytic removal of hexavalent chromium from aqueous solution using UV/Z...

Surface modification of polyethersulfone (PES) membrane surfaces using UV lozone pretreatment with sub­ sequent grafting and interfacial polymerization on membrane surface was investigated in order to improve the resistance of membrane surface to protein adsorption. The surface modifications were evaluated in terms of hydrophilicity, chemical composition of the surface and static protein adsorp...

BACKGROUND The main objective of this study was to examine the photocatalytic degradation of phenol from laboratory samples and petrochemical industries wastewater under UV radiation by using nanoparticles of titanium dioxide coated on the inner and outer quartz glass tubes. METHOD The first stage of this study was conducted to stabilize the titanium dioxide nanoparticles in anatase crystal p...