We review the general hydrodynamic theory of active soft materials that is motivated in
particular by biological matter. We present basic concepts of irreversible thermodynamics of …

We review progress in active hydrodynamic descriptions of flowing media on curved and
deformable manifolds: the state-of-the-art in continuum descriptions of single-layers of …

Onsagers variational principle (OVP) was originally proposed by Lars Onsager in 1931 [L.
Onsager, Phys. Rev., 1931, 37, 405]. This fundamental principle provides a very powerful …

Epithelial tissues can elongate in two dimensions by polarized cell intercalation, oriented
cell division, or cell shape change, owing to local or global actomyosin contractile forces …

Shape transformations of epithelial tissues in three dimensions, which are crucial for
embryonic development or in vitro organoid growth, can result from active forces generated …

Tissue organization is often characterized by specific patterns of cell morphology. How such
patterns emerge in developing tissues is a fundamental open question. Here, we investigate …

Tissues transition between solid-like and fluid-like behavior, which has major implications
for morphogenesis and disease. These transitions can occur due to changes in the intrinsic …

We theoretically explore fluidization of epithelial tissues by active T1 neighbor exchanges.
We show that the geometry of cell-cell junctions encodes important information about the …

Morphogenesis depends crucially on the complex rheological properties of cell tissues and
on their ability to maintain mechanical integrity while rearranging at long times. In this paper …

Variational methods have been widely used in soft matter physics for both static and
dynamic problems. These methods are mostly based on two variational principles: the …