New Fabrication Technique Yields Nanoscale UV LEDs 
It’s really neat when the rest of the world is all a buzz about super high-brightness LEDs and LED modules that are big and bright enough to burn you facial silhouette into concrete that the boys at NIST, University of Maryland, and Howard University have cooked up nano-sized LEDs. Nanotechnology is still one of those voodoo technologies that has only realized limited commercial success in a very limited selection of applications but, perhaps, with the advent of nano-sized solid-state lighting that may change. Interesting that UV was the chosen wavelength. Since 365 nm is a typical UVA phototherapy wavelength, maybe medical applications should be included on the list of viable uses for these things. I envision doctors releasing into the bloodstream an army of nano-robots equipped with nano-scale UV LEDs capable of treating persistent skin conditions with micro-bursts of locally concentrated UV, internally! How cool is that? Well, I’m guessing we’re a long ways away from anything like that but it’s fun to think about. 
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