Fig. 5
From: Engineering bacterial vortex lattice via direct laser lithography
Bacterial vortex lattices in the presence of chiral towers. a 3D model of chiral tower. The top part consists of five 3-μm thick hollow disks spaced at 3-μm vertical distance from each other. These disks are supported by 1-μm thin vertical walls oriented at 45° relative to the radius. b Chiral towers create internal and external hydrodynamical bacterial vortices due to specially oriented holes in their tips. c Vorticity map of bacterial flow between antiferromagnetic (left) and ferromagnetic (right) chiral tower arrays. Scale bar: 100 μm
