47 citations · 440 across the 33 of their papers we have counts for
28 papers · 1 filter
Mixing induced by microswimmers as probed by mutual information
Yihong Shi, Yuto Hosaka, Andrej Vilfan +1
We investigate fluid mixing induced by microswimmers using mutual information as a global, information-theoretic measure of mixing efficiency. For a two-dimensional squirmer model…
Lateral hydrodynamics in supported membranes: The Evans-Sackmann model and its extensions
Yuto Hosaka, David Andelman, Shigeyuki Komura
We review the theoretical development and modern applications of the Evans-Sackmann hydrodynamic model for lateral transport in supported fluid membranes. We first cover the origin…
Self-phoretic colloids in chiral active fluids
Michalis Chatzittofi, Yuto Hosaka, Andrej Vilfan +1
Autonomous and driven transport in chiral active fluids have been shown to exhibit features that cannot be accommodated within the classical formulation of fluid mechanics, due to…
Analytical response functions for a compressible thin fluid layer with odd viscosity
Abdallah Daddi-Moussa-Ider, Yuto Hosaka, Shigeyuki Komura
Fluids composed of chiral active components can exhibit odd viscosity, a property that breaks time-reversal and parity symmetries. We investigate the hydrodynamic response to monop…
Dumbbell dimer dynamics in three-dimensional chiral fluids
Michalis Chatzittofi, Yuto Hosaka
We study the emergent orientational dynamics of a dumbbell dimer -- two asymmetric monomers connected by a linking spring -- in a three-dimensional chiral environment with odd visc…
Thermally driven two-sphere microswimmer with internal feedback control
Jun Li, Ziluo Zhang, Zhanglin Hou +4
We discuss the locomotion of a thermally driven elastic two-sphere microswimmer with internal feedback control that is realized by the position-dependent friction coefficients. In…
Chirotactic response of microswimmers in fluids with odd viscosity
Yuto Hosaka, Michalis Chatzittofi, Ramin Golestanian +1
Odd viscosity is a property of chiral active fluids with broken time-reversal and parity symmetries. We show that the flow of such a fluid around a rotating axisymmetric body is ex…
Generalized Three-Sphere Microswimmers
Kento Yasuda, Yuto Hosaka, Shigeyuki Komura
Among several models for microswimmers, the three-sphere microswimmer proposed by Najafi and Golestanian captures the essential mechanism for the locomotion of a microswimmer in a…
Axisymmetric monopole and dipole flow singularities in proximity of a stationary no-slip plate immersed in a Brinkman fluid
Abdallah Daddi-Moussa-Ider, Yuto Hosaka, Andrej Vilfan +1
Green's function plays an important role in many areas of physical sciences and is a prime tool for solving diverse hydrodynamic equations in the linear regime. In the present cont…
Lorentz Reciprocal Theorem in Fluids with Odd Viscosity
Yuto Hosaka, Ramin Golestanian, Andrej Vilfan
The Lorentz reciprocal theorem -- that is used to study various transport phenomena in hydrodynamics -- is violated in chiral active fluids that feature odd viscosity with broken t…
Hydrodynamics of an odd active surfer in a chiral fluid
Yuto Hosaka, Ramin Golestanian, Abdallah Daddi-Moussa-Ider
We theoretically and computationally study the low-Reynolds-number hydrodynamics of a linear active microswimmer surfing on a compressible thin fluid layer characterized by an odd…
Odd elasticity of a catalytic micromachine
Akira Kobayashi, Kento Yasuda, Kenta Ishimoto +4
We perform numerical simulations of a model micromachine driven by catalytic chemical reactions. Our model includes a mechano-chemical coupling between the structural variables and…
Pair dynamics of active force dipoles in an odd-viscous fluid
Yuto Hosaka, David Andelman, Shigeyuki Komura
We discuss the lateral dynamics of two active force dipoles, which interact with each other via hydrodynamic interactions in a thin fluid layer that is active and chiral. The fluid…
Simulations of Odd Microswimmers
Akira Kobayashi, Kento Yasuda, Li-Shing Lin +3
We perform numerical simulations of odd microswimmers consisting of three spheres and two odd springs. To describe the hydrodynamic interaction, both the Oseen-type and the Rotne-P…
Onsager's variational principle for nonreciprocal systems with odd elasticity
Li-Shing Lin, Kento Yasuda, Kenta Ishimoto +2
Using Onsager's variational principle, we derive dynamical equations for a nonequilibrium active system with odd elasticity. The elimination of the extra variable that is coupled t…
Nonequilibrium Transport Induced by Biological Nanomachines
Yuto Hosaka, Shigeyuki Komura
Biological nanomachines are nanometer-size macromolecular complexes that catalyze chemical reactions in the presence of substrate molecules. The catalytic functions carried out by…
Lateral response of a layered material with interlayer friction
Tomoki Sasada, Kento Yasuda, Yuto Hosaka +1
We investigate the mechanical properties of a layered material with interlayer friction. We propose a model that contains lateral elasticity and interlayer friction to obtain the r…
Time-correlation functions for odd Langevin systems
Kento Yasuda, Kenta Ishimoto, Akira Kobayashi +4
We investigate the statistical properties of fluctuations in active systems that are governed by non-symmetric responses. Both an underdamped Langevin system with an odd resistance…
The Onsager-Machlup Integral for Non-reciprocal Systems with Odd Elasticity
Kento Yasuda, Akira Kobayashi, Li-Shing Lin +3
The variational principle of the Onsager-Machlup integral is used to describe the stochastic dynamics of a micromachine, such as an enzyme, characterized by odd elasticity. The obt…
Hydrodynamic lift of a two-dimensional liquid domain with odd viscosity
Yuto Hosaka, Shigeyuki Komura, David Andelman
We discuss hydrodynamic forces acting on a two-dimensional liquid domain that moves laterally within a supported fluid membrane in the presence of odd viscosity. Since active rotat…
Odd Microswimmer
Kento Yasuda, Yuto Hosaka, Isamu Sou +1
We propose a model for a thermally driven microswimmer in which three spheres are connected by two springs with odd elasticity. We demonstrate that the presence of odd elasticity l…
Autonomous elastic microswimmer
Katsutomo Era, Yuki Koyano, Yuto Hosaka +3
A model of an autonomous three-sphere microswimmer is proposed by implementing a coupling effect between the two natural lengths of an elastic microswimmer. Such a coupling mechani…
Mechanochemical enzymes and protein machines as hydrodynamic force dipoles: The active dimer model
Yuto Hosaka, Shigeyuki Komura, Alexander S. Mikhailov
Mechanochemically active enzymes change their shapes within every turnover cycle. Therefore, they induce circulating flows in the solvent around them and behave as oscillating hydr…
Shear viscosity of two-state enzyme solutions
Yuto Hosaka, Shigeyuki Komura, David Andelman
We discuss the shear viscosity of a Newtonian solution of catalytic enzymes and substrate molecules. The enzyme is modeled as a two-state dimer consisting of two spherical domains…