Elucidating the consequences of heterogeneous activity in an actin based liquid crystal
ORAL
Abstract
Active matter is generally studied in cases in which activity is spatially uniform. However, many of the biological systems that inspire this line of research, such as forces in a cell, feature activity that is highly spatially inhomogeneous. While generating spatially inhomogeneous stress has historically been difficult, here we present an experimental system in which spatial control of myosin activity in an actin liquid crystal allows for patterning of activity within the sample. Using this system, and comparing with hydrodynamic simulations, we show that patterned activity has the potential to direct the motion of +1/2 defects within a liquid crystal and constrain fluid flow.
–
Presenters
Steven Redford
University of Chicago
James Franck Institute, University of Chicago
Authors
Steven Redford
University of Chicago
James Franck Institute, University of Chicago
Rui Zhang
University of Chicago
Institute for Molecular Engineering, University of Chicago
Nitin Kumar
University of Chicago
James Franck Institute, University of Chicago
Paul Ruijgrok
Stanford University
Ali Mozaffari
University of Chicago
Institute for Molecular Engineering, University of Chicago
Aaron Dinner
University of Chicago
Vincenzo Vitelli
University of Chicago
Univ of Chicago
James Franck Institute and Department of Physics, University of Chicago
The James Franck Institute and Department of Physics, University of Chicago
Zev Bryant
Stanford University
Juan De Pablo
University of Chicago
Chemical Eng., University of Chicago
The Institute for Molecular Engineering, The University of Chicago
Institute for Molecular Engineering, University of Chicago
Institute for Molecular Engineering, The University of Chicago
Institute for Molecular Engineering, Argonne National Laboratory
