Research news on Living matter & active matter

Living matter and active matter, as a physical system, comprise ensembles of constituents that continuously consume energy to generate mechanical work, drive motion, and maintain structures far from thermodynamic equilibrium. Living matter refers to biological active systems such as cells, tissues, and cytoskeletal networks, where internal biochemical processes power self-propulsion, force generation, and adaptive responses. Active matter generalizes these features to biological and synthetic units (e.g., self-propelled colloids, active nematics) modeled as particles or fields with persistent energy input at the microscale. Both exhibit emergent collective phenomena, including spontaneous flows, pattern formation, phase separation, and anomalous transport, governed by nonequilibrium statistical mechanics and continuum active hydrodynamics.

When motion prevents order in active matter systems

Pack enough string-like objects together, and they will begin to align with one another. But replace the strings with worms or bacteria living in your gut, and this self-organization becomes much more difficult. A team of ...

Slime molds make decisions using internal fluid flows

Despite lacking brains or nervous systems, slime molds are capable of making surprisingly sophisticated decisions: navigating mazes, finding food and even remembering where they found it last time. How they manage to do all ...

Why jellyfish can't rise to the surface

Using box jellyfish as an example, researchers from Kiel University show how the physics of density, not behavior or physiology, can prevent animals from reaching the surface even as they actively swim upward.

page 1 from 11