Programmable pigments: Photochromic nanoparticle inks for rewritable tattoos

3 comments

• delichon 2 hours ago
  Hear me out, implanted lie detectors with displays tattooed into the foreheads of politicians.
  [-]
  • amateurCoder5 1 hour ago
    Simpler to just use a normal tattoo that says "LIE".
• kreelman 1 hour ago
  I'll have to read up on this. I wonder about it as a kind of e-ink?

  I'm sure there are a bunch of differences, but fun to think about perhaps.
• qwertytyyuu 3 hours ago
  That is so cool. I wonder if this allows for printing images with some kind of 3d printer like thing with a weak uv laser