240 citations · 601 across the 9 of their papers we have counts for
9 papers
Vorticity phase separation and defect lattices in the isotropic phase of active liquid crystals
Fernando Caballero, Zhihong You, M. Cristina Marchetti
We use numerical simulations and linear stability analysis to study the dynamics of an active liquid crystal film on a substrate in the regime where the passive system would be iso…
Spontaneous stable rotation of flocking flexible active matter
Gaoxiao Jiang, Zhihong You, Rui Ma +1
In nature, active matter, such as worms or dogs, tend to spontaneously form a stable rotational cluster when they flock to the same food source on an unregulated and unconfined sur…
Dynamics of active liquid interfaces
Raymond Adkins, Itamar Kolvin, Zhihong You +3
Controlling interfaces of phase separating fluid mixtures is key to creating diverse functional soft materials. Traditionally, this is accomplished with surface-modifying chemical…
Active nematic defects in compressible and incompressible flows
Supavit Pokawanvit, Zhitao Chen, Zhihong You +3
We study the dynamics of active nematic films on a substrate driven by active flows with or without the incompressible constraint.Through simulations and theoretical analysis, we s…
Nonreciprocity as a generic route to traveling states
Zhihong You, Aparna Baskaran, M. Cristina Marchetti
We examine a non-reciprocally coupled dynamical model of a mixture of two diffusing species. We demonstrate that nonreciprocity, which is encoded in the model via antagonistic cros…
Confinement-induced self-organization in growing bacterial colonies
Zhihong You, Daniel J. G. Pearce, Luca Giomi
We investigate the emergence of global alignment in colonies of dividing rod-shaped cells under confinement. Using molecular dynamics simulations and continuous modeling, we demons…
Mono-to-multilayer transition in growing bacterial colonies
Zhihong You, Daniel J. G. Pearce, Anupam Sengupta +1
The transition from monolayers to multilayered structures in bacterial colonies is a fundamental step in biofilm development. Observed across different morphotypes and species, thi…
Statistical Properties of Autonomous Flows in 2D Active Nematics
Linnea M Lemma, Stephen J Decamp, Zhihong You +2
We study the dynamics of a tunable 2D active nematic liquid crystal composed of microtubules and kinesin motors confined to an oil-water interface. Kinesin motors continuously inje…
Geometry and mechanics of microdomains in growing bacterial colonies
Zhihong You, Daniel J. G. Pearce, Anupam Sengupta +1
Bacterial colonies are abundant on living and nonliving surfaces and are known to mediate a broad range of processes in ecology, medicine, and industry. Although extensively resear…