Respiratory droplets of pathogens, such as SARS-CoV-2 in the current COVID-19 pandemic, spread not only from person to person via direct contact, but also indirectly via contaminated frequently touched surfaces. Ultraviolet (UV) radiation is known as the gold standard of disinfection technology, where the DNA of microorganism are damaged by high energy UV photons. The […]

Indoor air is contaminated by a variety of chemical and microbial contaminants. These contaminants can be effectively removed or inactivated using a process known as photocatalysis. In this method, a photocatalyst is chemically activated using ultraviolet (UV) radiation and readily degrade the contaminants when coming in contact with them. The application of newly emerged ultraviolet […]

The Acuva Technologies Inc. has designed and developed UV LED-based water purification machines. These machines are in their optimization stage for cost, complexity, and manufacturing time reduction. Adding some features such as graphical user interface, wireless connectivity and being self-powered increase the public popularity of these machines. Graphical LCD provides much more user-friendly interface by […]

Contamination by microorganisms is a well-known problem for commercial ice machines. Frequent applications of sterilizing chemicals are necessary to keep the ice machines sanitary, a costly and time-consuming process. The sources of this contamination are microorganisms associated with the water used as the source for ice production, the incoming air to the ice machine, and […]