This thesis focuses on experimental studies on collective motion using swimming bacteria as model active-matter systems. It offers comprehensive reviews of stat
Micro-organisms first appeared on earth about 3.8 billion years ago and can be found almost everywhere now. In terms of number and biomass, they in fact constit
This thesis describes lyotropic chromonic liquid crystals (LCLCs) with exotic elastic and viscous properties. The first part of the thesis presents a thorough a