165 citations · 658 across the 35 of their papers we have counts for
11 papers · 1 filter
Optimal mechanical interactions direct multicellular network formation on elastic substrates
Patrick S. Noerr, Jose E. Zamora Alvarado, Farnaz Golnaraghi +3
Cells self-organize into functional, ordered structures during tissue morphogenesis, a process that is evocative of colloidal self-assembly into engineered soft materials. Understa…
Collective states of active particles with elastic dipolar interactions
Subhaya Bose, Patrick S. Noerr, Ajay Gopinathan +2
Many types of mammalian cells exert active contractile forces and mechanically deform their elastic substrate, to accomplish biological functions such as cell migration. These subs…
Geometric effects induce anomalous size-dependent active transport in structured environments
Pooja Chopra, David Quint, Ajay Gopinathan +1
Variations of transport efficiency in structured environments between distinct individuals in actively self-propelled systems is both hard to study and poorly understood. Here, we…
Growth of Form in Thin Elastic Structures
Salem Al Mosleh, Ajay Gopinathan, Christian Santangelo
Heterogeneous growth plays an important role in the shape and pattern formation of thin elastic structures ranging from the petals of blooming lilies to the cell walls of growing b…
Shape selection of surface-bound helical filaments: biopolymers on curved membranes
D. A. Quint, A. Gopinathan, G. M. Grason
Motivated to understand the behavior of biological filaments interacting with membranes of various types, we study a theoretical model for the shape and thermodynamics of intrinsic…
Conformational Collapse of Surface-Bound Helical Filaments
David A. Quint, Ajay Gopinathan, Gregory M. Grason
Chiral polymers are ubiquitous in nature and in the cellular context they are often found in association with membranes. Here we show that surface bound polymers with an intrinsic…
Diffusion and binding of finite-size particles in confined geometries
Mark L. Henle, Brian DiDonna, Christian D. Santangelo +1
Describing the diffusion of particles through crowded, confined environments with which they can interact is of considerable biological and technological interest. Under conditions…
Polymer Translocation in Crowded Environments
Ajay Gopinathan, Yong Woon Kim
We study the effect of the crowded nature of the cellular cytoplasm on the translocation of a polymer through a pore in a membrane. By systematically treating the entropic penalty…
Dynamics of membranes driven by actin polymerization
Nir Gov, Ajay Gopinathan
A motile cell, when stimulated, shows a dramatic increase in the activity of its membrane, manifested by the appearance of dynamic membrane structures such as lamellipodia, filopod…
Statistically Locked-in Transport Through Periodic Potential Landscapes
Ajay Gopinathan, David G. Grier
Classical particles driven through periodically modulated potential energy landscapes are predicted to follow a Devil's staircase hierarchy of commensurate trajectories depending o…
Weak Long-Ranged Casimir Attraction in Colloidal Crystals
Ajay Gopinathan, Tong Zhou, S. N. Coppersmith +2
We investigate the influence of geometric confinement on the free energy of an idealized model for charge-stabilized colloidal suspensions. The mean-field Poisson-Boltzmann formula…