Ozone

Scientists have developed a fully transparent skin sensor that accurately measures UV radiation, detecting light and converting it to electrical signals. So before the sun's rays reach damaging levels, a phone alert lets users know it's time to cover up.

Although ozone is used to disinfect water in settings such as treatment plants, the required equipment is typically too large for use in small appliances like water coolers. A new miniaturized ozone generator, however, may be about to change that.

The Roving Blue O-Pen supports world travellers and nomads by keeping drinking water clean and fresh. In contrast to more common purification means, like UV rays, this pen-sized purification device kills microorganisms with the stuff that blocks those UV rays in the atmosphere: ozone.