Reactive particles are interesting synthetic alternatives to biological swimmers in their simplicity and their ability to convert chemical energy into fluid motion and interact with inhomogeneous physico-chemical fields (e.g. a solute concentration). In practice, the surface coating of a phoretic particle can be designed to encode a given hydro-chemical response. This provides a route for controlling their behavior at the collective level and the effective physical properties of a whole suspension (e.g. rheology). The main objective of this project will be to analyse the effective rheology and dynamic response of suspensions of reactive particles to mechanical forcing (e.g. shear flow). The intern will study in detail the evolution of the suspension's rheology with particle density, shape and surface properties, as well as its response to chemical signaling.