No, but ... oh, never mind. It was a crap analogy. I'm sorry. I will go and stick my head in a bucket if it makes you feel better.

The university of warwick are, as far as I know, world leaders in robotic noses. They've chips with thousands of silicon receptors shaped like different molecules connected to a computer. This was in the mid-nineties, I'm not sure how it's progressed since then.