Microtechnology

Whether a medication is taken orally or intravenously, it ends up traveling throughout the body instead of going solely to the place it's needed. Such could soon no longer be the case, however, thanks to a new microparticle that looks like a flower.

From dog sleds to horse-drawn carts, animals have been pulling vehicles for thousands of years. Now, scientists in Tokyo have made what might be the smallest version ever, designing microscopic vehicles that can be pulled by single-celled algae.