Diseases, Conditions, Syndromes

Researchers develop autonomous robot to kill SARS-CoV-2

Ultraviolet light is a form of radiation that can be used for sterilization and disinfection. With schools and offices beginning to meet in-person again despite little change in the rate of COVID-19 infections, easy, low-cost ...

Arthritis & Rheumatism

Magnetic field and hydrogels could be used to grow new cartilage

Using a magnetic field and hydrogels, a team of researchers in the Perelman School of Medicine at the University of Pennsylvania have demonstrated a new possible way to rebuild complex body tissues, which could result in ...

Medical research

Tiny airborne particles may pose a big coronavirus problem

At a University of Maryland lab, people infected with the new coronavirus take turns sitting in a chair and putting their faces into the big end of a large cone. They recite the alphabet and sing or just sit quietly for a ...

Diseases, Conditions, Syndromes

Subways sparkle, but does cleaning decrease COVID-19 risk?

Mass transit systems around the world have taken unprecedented—and expensive—steps to curb the spread of the coronavirus, including New York shutting down its subways overnight and testing powerful ultraviolet lamps to ...

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Ultraviolet

Ultraviolet (UV) light is electromagnetic radiation with a wavelength shorter than that of visible light, but longer than x-rays, in the range 10 nm to 400 nm, and energies from 3 eV to 124 eV. It is so named because the spectrum consists of electromagnetic waves with frequencies higher than those that humans identify as the color violet.

UV light is found in sunlight and is emitted by electric arcs and specialized lights such as black lights. As an ionizing radiation it can cause chemical reactions, and causes many substances to glow or fluoresce. Most people are aware of the effects of UV through the painful condition of sunburn, but the UV spectrum has many other effects, both beneficial and damaging, on human health.

This text uses material from Wikipedia, licensed under CC BY-SA