Active Matter: from colloids to living cells

Cristina Marchetti
Syracuse Biomaterials Institute and Department of Physics, Syracuse University
Thursday, March 23, 2017 - 4:00pm
McLennan MP102, 60 St George
Special Seminar
Collections of self-propelled entities, from living cells to engineered microswimmers, organize in a rich variety of active fluid and solid states, with unusual properties. For instance, active fluids can flow with no externally applied driving forces and active gases do not fill their container. In this talk I will describe the behavior of such “active materials”, focusing on two examples of liquid-solid transitions driven by active processes. The first is the formation of cohesive matter with no cohesive forces in collections of purely repulsive active colloids. The second describes the properties of epithelial tissues that exhibit a liquid-solid transition at constant density driven by cell motility, contractility, and cell-cell adhesion.
BiophysTO Lunchtime Talks