Explore

Smartphones have a scaling problem. Specifically, the radio-frequency (RF) filters that every phone—and every wireless device in general—uses to extract information from isolated wireless signals are too big, too flat, and too numerous. And without these filters, wireless communications simply wouldn’t work at all.“...

As recent history proves, airborne respiratory infections are not to be trifled with. Now, a new sprayable coating applied to standard air filters might give us a leg up in the war against the pathogens that cause these diseases.Continue ReadingCategory: Materials, ScienceTags: Nanoparticles, Nanoparticle, Bacteria, Virus, Infections, Filters

While we've seen quite a few filtration systems for making polluted water drinkable, many are quite complex, or utilize costly materials. By contrast, an experimental new setup simply requires users to inject dirty water through a layer of cellulose.Continue ReadingCategory: Good Thinking, LifestyleTags: University of Texas, Water, Filters, Purification, cellulose, Hydrogels