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43 papers
Chiral fluid membranes with orientational order and multiple edges
Lijie Ding, Robert A. Pelcovits, Thomas R. Powers
We carry out Monte Carlo simulations on fluid membranes with orientational order and multiple edges in the presence and absence of external forces. The membrane resists bending and…
Flow states of two dimensional active gels driven by external shear
Wan Luo, Aparna Baskaran, Robert A. Pelcovits +1
Using a minimal hydrodynamic model, we theoretically and computationally study active gels in straight and annular two-dimensional channels subject to an externally imposed shear.…
Controlling the shape and topology of two-component colloidal membranes
Ayantika Khanra, Leroy L. Jia, Noah P. Mitchell +5
Changes in the geometry and topology of self-assembled membranes underlie diverse processes across cellular biology and engineering. Similar to lipid bilayers, monolayer colloidal…
Axisymmetric membranes with edges under external force: buckling, minimal surfaces, and tethers
Leroy L. Jia, Steven Pei, Robert A. Pelcovits +1
We use theory and numerical computation to determine the shape of an axisymmetric fluid membrane with a resistance to bending and constant area. The membrane connects two rings in…
Deformation and orientational order of chiral membranes with free edges
Lijie Ding, Robert A. Pelcovits, Thomas R. Powers
Motivated by experiments on colloidal membranes composed of chiral rod-like viruses, we use Monte Carlo methods to determine the phase diagram for the liquid crystalline order of t…
Taylor dispersion of elongated rods
Ajay Harishankar Kumar, Stuart J. Thomson, Thomas R. Powers +1
Particles transported in fluid flows, such as cells, polymers, or nanorods, are rarely spherical. In this study, we numerically and theoretically investigate the dispersion of an i…