  Controlling fluidic flows in active droplets is crucial in developing
intelligent models to understand and mimic single-celled microorganisms.
Typically, these fluidic flows are affected by the interfacial dynamics of
chemical agents. We found that these flows can be reconfigured by the mere
presence of anisotropic solid boundary embedded within active droplets.
Spontaneous fluidic flows dynamically orient an embedded magnetic cluster and
the magnetic cluster, when realigned, causes these flows to reorient. Thus,
providing an unprecedented control over the propulsion dynamics of chemotactic
emulsions. When continuously perturbed, achiral emulsions exhibit emergent
chiral motion with rotating fluidic flows. Such solid-fluid interactions
removes barriers of specific emulsion chemistries and complements their
inherent abilities thereby also enabling control over emergent collective
behaviors of active droplets.
