47 citations · 179 across the 10 of their papers we have counts for
10 papers
Rigidity of Epithelial Tissues as a Double Optimization Problem
Sadjad Arzash, Indrajit Tah, Andrea J. Liu +1
How do cells tune emergent properties at the scale of tissues? One class of such emergent behaviors are rigidity transitions, in which a tissue changes from a solid-like to a fluid…
Effects of local incompressibility on the rheology of composite biopolymer networks
Anupama Gannavarapu, Sadjad Arzash, Iain Muntz +4
Fibrous networks such as collagen are common in biological systems. Recent theoretical and experimental efforts have shed light on the mechanics of single component networks. Most…
Mechanical criticality of fiber networks at a finite temperature
Sadjad Arzash, Anupama Gannavarapu, Fred C. MacKintosh
At zero temperature, spring networks with connectivity below Maxwell's isostatic threshold undergo a mechanical phase transition from a floppy state at small strains to a rigid sta…
Mechanics of fiber networks under a bulk strain
Sadjad Arzash, Abhinav Sharma, Fred C. MacKintosh
Biopolymer networks are common in biological systems from the cytoskeleton of individual cells to collagen in the extracellular matrix. The mechanics of these systems under applied…
Shear-induced phase transition and critical exponents in 3D fiber networks
Sadjad Arzash, Jordan L. Shivers, Fred C. MacKintosh
When subject to applied strain, fiber networks exhibit nonlinear elastic stiffening. Recent theory and experiements have shown that this phenomenon is controlled by an underlying m…
Finite size effects in critical fiber networks
Sadjad Arzash, Jordan L. Shivers, Fred C. MacKintosh
Fibrous networks such as collagen are common in physiological systems. One important function of these networks is to provide mechanical stability for cells and tissues. At physiol…
Nonlinear Poisson effect governed by mechanical critical transition
Jordan L. Shivers, Sadjad Arzash, Fred C. MacKintosh
Under extensional strain, fiber networks can exhibit an anomalously large and nonlinear Poisson effect accompanied by a dramatic transverse contraction and volume reduction for app…
Stress relaxation in F-actin solutions by severing
S. Arzash, P. M. McCall, J. Feng +2
Networks of filamentous actin (F-actin) are important for the mechanics of most animal cells. These cytoskeletal networks are highly dynamic, with a variety of actin-associated pro…
Stress-stabilized sub-isostatic fiber networks in a rope-like limit
Sadjad Arzash, Jordan L. Shivers, Albert J. Licup +2
The mechanics of disordered fibrous networks such as those that make up the extracellular matrix are strongly dependent on the local connectivity or coordination number. For biopol…
Scaling theory for mechanical critical behavior in fiber networks
Jordan Shivers, Sadjad Arzash, Abhinav Sharma +1
As a function of connectivity, spring networks exhibit a critical transition between floppy and rigid phases at an isostatic threshold. For connectivity below this threshold, fiber…