Motivated by the formation of ringlike filament structures in the cortex of plant and animal cells, we study the dynamics of a two-dimensional layer of cytoskeletal filaments and motor proteins near a surface by a general continuum theory. As a result of active processes, dynamic patterns of filament orientation and density emerge via instabilities. We show that self-organization phenomena can lead to the formation of stationary and oscillating rings. We present state diagrams that reveal a rich scenario of asymptotic behaviors and discuss the role of boundary conditions
Phys. Rev. Lett.
Theory of Biomolecular Matter

Zumdieck, A, Cosentino Lagomarsino, M, Tanase, C, Kruse, K, Mulder, B.M, Dogterom, M, & Jülicher, F. (2005). Continuum description of the cytoskeleton: ring formation in the cell cortex. Phys.Rev.Lett., 95(Article number: 258103), 1–4. doi:10.1103/physrevlett.95.258103