To push through goo, use itty, bitty propellers
Tiny machines mimic the chemical action of ulcer-causing bacteria
![Helicobacter pylori](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2015/12/121015_ss_micropropellers-main_free.jpg?fit=860%2C460&ssl=1)
POWERING THROUGH Inspired by the bacterium Helicobacter pylori, researchers designed microscopic, protein-coated propellers (illustrated) that can push through thick mucus.
Alejandro Posada