Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The optical microscope images of the tadpole‐like microrobot carrying microballs under a magnetic field of 4 Hz and 1.85 mT in two motions. (A) The propulsion mode by the head for single cargo manipulation. (B) The rolling mode for multicargos transportation.
