John P. Berezney
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View article: Active assembly and non-reciprocal dynamics of elastic membranes
Active assembly and non-reciprocal dynamics of elastic membranes Open
Equilibrium self-assembly and conventional materials processing techniques fall far short of mimicking dynamic self-actuating processes that are commonplace throughout biology. To bridge the gap between living and synthetic matter, we stud…
View article: Closed-loop control of active nematic flows
Closed-loop control of active nematic flows Open
Living things enact control of non-equilibrium, dynamical structures through complex biochemical networks, accomplishing spatiotemporally-orchestrated physiological tasks such as cell division, motility, and embryogenesis. While the exact …
View article: Light-activated microtubule-based 2D active nematic
Light-activated microtubule-based 2D active nematic Open
We characterize two-dimensional (2D) microtubule-based active nematics driven by light-responsive kinesin motor clusters. We assess two constructs of optogenetic kinesin: opto-K401, a processive motor, and opto-K365, a non-processive motor…
View article: Light-activated microtubule-based two-dimensional active nematic
Light-activated microtubule-based two-dimensional active nematic Open
By introducing light-activated motors, we spatiotemporally pattern nematic defect structure and flow in two-dimensional microtubule nematics.
View article: Extensile to contractile transition in active microtubule–actin composites generates layered asters with programmable lifetimes
Extensile to contractile transition in active microtubule–actin composites generates layered asters with programmable lifetimes Open
Significance Active forces sculpt the forms of living things, generating adaptable and reconfigurable dynamical materials. Creating synthetic materials that exhibit comparable control over internally generated active forces remains a chall…
View article: Engineering stability, longevity, and miscibility of microtubule-based active fluids
Engineering stability, longevity, and miscibility of microtubule-based active fluids Open
Microtubule-based active matter provides insight into the self-organization of motile interacting constituents.
View article: Shear-Induced Gelation of Self-Yielding Active Networks
Shear-Induced Gelation of Self-Yielding Active Networks Open
An enticing feature of active materials is the possibility of controlling macroscale rheological properties through the activity of the microscopic constituents. Using a unique combination of microscopy and rheology we study three dimensio…
View article: Single-Molecule Stretching Shows Glycosylation Sets Tension in the Hyaluronan-Aggrecan Bottlebrush
Single-Molecule Stretching Shows Glycosylation Sets Tension in the Hyaluronan-Aggrecan Bottlebrush Open
View article: Single-Molecule Mechanical Measurements of the Hyaluronan-Aggrecan Bottlebrush
Single-Molecule Mechanical Measurements of the Hyaluronan-Aggrecan Bottlebrush Open
View article: Single-molecule mechanical measurements of the hyaluronan-aggrecan bottlebrush
Single-molecule mechanical measurements of the hyaluronan-aggrecan bottlebrush Open
View article: Microtubule-based active fluids with improved lifetime, temporal stability and miscibility with passive soft materials
Microtubule-based active fluids with improved lifetime, temporal stability and miscibility with passive soft materials Open
We have developed several distinct model systems of microtubule-based 3D active isotropic fluids and have compared their dynamical and structural properties. The non-equilibrium dynamics of these fluids is powered by three different types …
View article: The effect of chain stiffness and salt on the elastic response of a polyelectrolyte
The effect of chain stiffness and salt on the elastic response of a polyelectrolyte Open
We present simulations of the force-extension curves of strong polyelectrolytes with varying intrinsic stiffness as well as specifically treating hyaluronic acid, a polyelectrolyte of intermediate stiffness. Whereas fully flexible polyelec…
View article: Electrostatic Dependent Elastic Behavior of Hyaluronic Acid
Electrostatic Dependent Elastic Behavior of Hyaluronic Acid Open