This paper evaluates the degradation of two azo reactive dyes, C.I. Reactive Yellow 84 (RY84) and C.I. Reactive Red 120 (RR120) by photo-Fenton and Fenton-like oxidation. All experiments were performed on a laboratory scale set-up. The effects of different reaction parameters such as initial pH, contact time, effect of light and hydrogen peroxide concentrations on the oxidation of the dye aqueo...

PURPOSE The object of this study was to investigate the effect of UV irradiation (by a general commercial UV sterilizer) on anodized titanium surface. Surface characteristics and cellular responses were compared between anodized titanium discs and UV irradiated anodized titanium discs. MATERIALS AND METHODS TITANIUM DISCS WERE ANODIZED AND DIVIDED INTO THE FOLLOWING GROUPS: Group 1, anodized ...

Diamond like carbon (DLC) films were deposited on Si and then patterned to form 40 nm features as nanoimprint templates. A plasma enhanced chemical vapor deposition (PECVD) system with CH4 precursor was used to deposit DLC films on Si and quartz substrates. These films were then characterized using Raman spectroscopy, atomic force microscopy (AFM), nanoindentation, and contact angle measurement...

PURPOSE This study evaluates lens care using the PuriLens System, an advanced way to clean and disinfect soft hydrophilic lenses using subsonic agitation and UV radiation, respectively. METHODS A two-period crossover lens cleaning and safety investigation was conducted using 80 patients. Disinfecting efficacy was tested in accordance with standard FDA protocols. Lens compatibility was studied...

Non-contact cardio signal monitoring is a requisite for premature infants, as adhesive sensors and electrodes such that an electrocardiogram can damage the epidermis. Many types of research on infants in newborn intensive care unit (NICU) are still their early stages with many challenges. Therefore, this study aims to use digital camera non-contact photoplethysmography imaging method measure co...

Graphene has excellent properties which can be a promising material as nanocomposites for application in drug delivery system (DDS). In this study, reduced graphene oxide/silver nanoparticles (rGO/AgNPs) was synthesized using facile in-situ method loading of acetylsalicylic acid (ASA). The synthesis results were characterized by FESEM, EDX, UV-Vis, XRD, and Raman spectrophotometers analyses. sh...

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...