Results 151 to 160 of about 4,761,499 (204)

On the temperature of an active nematic

We employ a novel hydrodynamic framework for active matter coupled to an environment to study the local temperature of an active nematic, assuming proximity to thermal equilibrium. We show that, due to the mechanosensitivity of fuel consumption, linearized temperature correlations in a homogeneous active nematic steady state remain unaffected by ...
Armas, Jay, Jain, Akash, Lier, Ruben
openaire   +2 more sources

Variational formulation of active nematic fluids: theory and simulation

New Journal of Physics
The structure and dynamics of important biological quasi-two-dimensional systems, ranging from cytoskeletal gels to tissues, are controlled by nematic order, flow, defects and activity.
W Mirza, A Torres-Sánchez, G Vilanova, Marino Arroyo   +3 more
doaj   +1 more source

Spatiotemporal chaos and defect proliferation in polar-apolar active mixture

New Journal of Physics
Chaotic transitions in inertial fluids typically proceed through a direct energy cascade from large to small scales. In contrast, active systems—composed of self-propelled units—inject energy at microscopic scales and therefore exhibit an inverse cascade,
Partha Sarathi Mondal, Tamás Vicsek, Shradha Mishra   +2 more
doaj   +1 more source

Three-dimensional spontaneous flow transition in a homeotropic active nematic

Communications Physics
Active nematics are driven, non-equilibrium systems relevant to biological processes including tissue mechanics and morphogenesis, and to active metamaterials in general.
Vincenzo J. Pratley, Enej Caf, Miha Ravnik, Gareth P. Alexander   +3 more
doaj   +1 more source

Coexistence of Active and Hydrodynamic Turbulence in Two-Dimensional Active Nematics

In active nematic liquid crystals, activity is able to drive chaotic spatiotemporal flows referred to as active turbulence. Active turbulence has been characterized through theoretical and experimental work as a low Reynolds number phenomenon.
Toschi, F., Pagonabarraga, Ignacio, Rorai, C.   +2 more
core   +1 more source

Active nematics at interfaces: conditioning and steering effects

, 2017
Active liquid crystals are a new class of soft materials that have recently raised a huge interest. In particular, reconstituted suspensions of cytoskeletal filaments and associated motor proteins have proven ideal for quantitative studies of the origin ...
Sagues, Francesc
core  

Self-organized dynamics and the transition to turbulence of confined active nematics. [PDF]

Proc Natl Acad Sci U S A, 2019
Opathalage A, Norton MM, Juniper MPN, Langeslay B, Aghvami SA, Fraden S, Dogic Z.   +6 more
europepmc   +1 more source

The role of elastic anisotropy in active nematics

Proceedings of the Royal Society A Mathematical Physical and Engineering Science
Abstract We analyse the effect of anisotropy in elastic constants on the hydrodynamics of active nematics. Building on the multipole framework for a single elastic constant, we determine the leading effect of elastic anisotropy on the active response of generic distortions. The key findings are a new active torque, proportional to the
openaire   +2 more sources

Orientational order of motile defects in active nematics. [PDF]

Nat Mater, 2015
DeCamp SJ, Redner GS, Baskaran A, Hagan MF, Dogic Z.   +4 more
europepmc   +1 more source

Topological chaos in active nematics

Nature Physics, 2019
Amanda J. Tan, Eric Roberts, Spencer A. Smith, Ulyses Alvarado Olvera, Jorge Arteaga, Sam Fortini, K. Mitchell, L. Hirst   +7 more
semanticscholar   +1 more source