What do you think of when you think of nanotech? Computers? Robots? Medicine? The replicators in Star Trek? They're the obvious applications, because they're what everyone's talking about—"Nanotech Is The Future", in a deep, booming, amusement park voice.
Here's another idea:
Kate Nichols is a painter who uses nanoparticles in her work and was recently made a TED Fellow. I'm not going to say anything more because Boing Boing, TED, and her own website cover everything anyway.
Her art's pretty danged amazing. I'm going to go out on a limb* and say "Nanotech Is The Future of Art." In some universe, that's got to be true. There's got to be more than this single application. Using reflective particles in regular paint or printing inks could result in reflective waterscapes, reflective glass, reflective you-name-its. You could use this stuff in dyes, for iridescent clothing (even if we have that now), or make jewelry with it, or, I dunno, tie the particles to frequencies, so they'd shimmer with voices or music.
Who else votes yea?
(Yes, small post today. Again. I is tired. Again.)
*a really big one, like Giant Sequoia sized