Expérimental
Active particles such as the swimming microalgae Chlamydomonas reinhardtii are inherently out-of-equilibrium systems, able to uptake energy from their environment and convert it to motion. When passive particles are immersed in an active bath of micro-swimmers, they may be displaced due to the activity of the suspension. This enhanced motion can lead to rich phenomena, such as aggregation or phase separation. The aim of this internship is to make use of the swimming microalga C. reinhardtii, a microorganism of size ~10 microns, to propel objects that are larger than itself. These objects can be hard beads or liquid droplets. The internship is primarily experimental, with a lot of quantitative image and data analysis