Anomalous diffusion of E. coli under microfluidic confinement and chemical gradient

Abstract

We report a two-layer microfluidic device to study the combined effect of confinement and chemical gradient on the motility of wild-type E. coli. We track individual E. coli in 50...

The motion of micro-swimmers over a cavity in a micro-channel

“…This motion behavior shares similarities with the alternating “sliding” and “tumbling” motion of E. coli in microchannels. 69 However, Mode 2 will flow in the opposite direction within the channel, while Mode 3 will flow in the same direction within the channel. For swimmers with two different propelled modes and swimming directions, the change in cavity size directly affects their movement time inside the cavity and can potentially increase their trapping capability.…”