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A clear glass toaster; a plane of glass that can heat a living room; a device that helps relieve arthritis and carpal tunnel syndrome pain; a less-damaging, more energy-efficient hairdryer — these have all been created by Impression Technology, a nanotechnology start-up headquartered in Frederick and run in large part by three city residents.

The young company has perfected a new, "green" technology it calls Pure Heat, which offers, among other benefits, a way to generate evenly distributed heat at a 70 percent electricity savings over conventional heating methods. The kicker is the technology can be applied to essentially any non-flexible surface, and it is entirely transparent.

nanotechnology electricity saving pure heat