A new generation of e-nose uses a DNA scaffolding and molecular fluorescence to distinguish among various vapors, in a breakthrough that could make electronic sniffers more powerful and simpler to produce, according to researchers at Stanford University.
The method could conceivably detect anything from spoiled milk to explosives, the researchers say -- a major advancement over existing e-noses, which search for only a couple of specific molecules.
In DIY science, eBay offers amazing access to gear, supplies, chemicals—a whole universe beyond Pez dispensers.
By Theodore GrayPosted 05.20.2004 at 4:35 pm 0 Comments
If you pick up a memoir by a famous scientist, more often than not you'll get a story about how, as a child, he went to the corner drugstore to buy some insanely dangerous chemicals, then nearly blew up the family home. It's a recurring theme, believe me.