Researchers show the size and volume differential of microneedles and traditional hypodermic needles. Shown (left) holding a microneedle patch is Chris Edens of Georgia Tech, while Mark Prausnitz (right) of Georgia Tech holds examples of the hypodermic needle and syringe that is now used for measles vaccination. Also shown are Marcus Collins and Paul Rota of the CDC. (Georgia Tech Photo: Gary Meek)
