Bacteria meet surfaces: from individual to collective dynamics M2 internship -> fully-funded PhD Group “Physics of biological systems”, Laboratoire de Physique, ENS de Lyon The adhesion of bacteria to surfaces initiates the formation of biofilms, organized colonies in which bacteria are protected by an extracellular matrix [1,2]. Although biofilms are an important issue in both industrypar slecuyer - Thèses hors de l'EDPIF