Description:
<jats:title>ABSTRACT</jats:title>
<jats:p>
Flagellar propulsion of swimming
<jats:italic>Escherichia coli</jats:italic>
produces circling clockwise motions near planar solid surfaces. Counterclockwise motion was first reported near air-TN medium interfaces, showing that slip at the interface is a key parameter of bacterial swimming.
</jats:p>