  The need for structuring on micrometer scales is abundant, for example, in
view of phononic applications. We here outline a novel approach based on the
phenomenon of active turbulence on the mesoscale. As we demonstrate, a
shear-thickening carrier fluid of active microswimmers intrinsically stabilizes
regular vortex patterns of otherwise turbulent active suspensions. The fluid
self-organizes into a periodically structured nonequilibrium state. Introducing
additional passive particles of intermediate size leads to regular spatial
organization of these objects. Our approach opens a new path towards
functionalization through patterning of thin films and membranes.
