Microtubule based composite active matter
Invited
Abstract
Active matter dynamics is determined by the balance between active stresses generated by the motile component, and the passive viscous or elastic stresses that arise due to deformation of the background material. In many current formulations of active matter Independent control of active and reactive stresses is not possible. For example, in microtubule-based 2D active nematics, decreasing ATP concentration simultaneously decreases the magnitude of the active stresses and increases the elasticity of the liquid crystalline materials. This limits the range of accessible dynamical states, while also impeding quantitative tests of theoretical models. Recent advances in formulation of microtubule based active matter has enabled dispersion of these motile elements in various passive soft materials including phase separated suspensions, viscoelastic networks and 3D colloidal liquid crystals. These new model systems of composite active matter exhibit diverse dynamical states that are not accessible in previous one components systems.
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Presenters
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Zvonimir Dogic
Physics, UC Santa Barbara, University of California Santa Barbara, University of California, Santa Barbara, Physics, University of California Santa Barbara, Physics Department, University of Caifornia Santa Barbara, Physics, University of California, Santa Barbara
Authors
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Zvonimir Dogic
Physics, UC Santa Barbara, University of California Santa Barbara, University of California, Santa Barbara, Physics, University of California Santa Barbara, Physics Department, University of Caifornia Santa Barbara, Physics, University of California, Santa Barbara