Results 111 to 120 of about 3,119 (198)
Hydrophobicity Influence on Swimming Performance of Magnetically Driven Miniature Helical Swimmers
Micromachines, 2019 Helical microswimmers have been involved in a wide variety of applications, ranging from in vivo tasks such as targeted drug delivery to in vitro tasks such as transporting micro objects.
Chengwei Ye +6 more
doaj +1 more source
Collision of microswimmers in a viscous fluid
Physical Review E, 2013 We investigate the effects of boundary conditions on the surface of self-propelled spherical swimmers moving in a viscous fluid with a low Reynolds number. We first show that collisions between the swimmers are impossible under the commonly used no-slip conditions.
M, Potomkin +3 more
openaire +3 more sources
Propulsion of a chiral swimmer in viscoelastic fluids
Physical Review ResearchMicroswimmers often use chirality to generate translational movement from rotation motion, exhibiting distinct behaviors in complex fluids compared to simple Newtonian fluids. However, the underlying mechanism remains incompletely understood.
Takuya Kobayashi +2 more
doaj +1 more source
Motion of microswimmers in cylindrical microchannels
Soft MatterMicroswimmers in confinement slow down, and can exert pulling or pushing forces in particular at the end of a closed channel. Simulations and approximate theoretical calculation for the squirmer model are employed to predict this behavior.
Overberg, Florian A. +2 more
openaire +4 more sources
Trypanosoma brucei moving in microchannels and through constrictions
New Journal of PhysicsTrypanosoma brucei ( T. brucei ), a single-celled parasite and natural microswimmer, is responsible for fatal sleeping sickness in infected mammals, including humans. Understanding how T.
Zihan Tan +2 more
doaj +1 more source
Bioinspired Helical Microswimmers Based on Vascular Plants [PDF]
, 2014 Plant-based bioinspired magnetically propelled helical microswimmers are described. The helical microstructures are derived from spiral water-conducting vessels of different plants, harnessing the intrinsic biological structures of nature.
Pei, Allen +6 more
core
Collective motion in a sheet of microswimmers [PDF]
Self-propelled micron-size particles suspended in a fluid, like bacteria or synthetic microswimmers, are strongly non-equilibrium systems where particle motility breaks the microscopic detailed balance, often resulting in large-scale collective motion ...
Bárdfalvy, Dóra +9 more
core +2 more sources
Pattern selection and the route to turbulence in incompressible polar active fluids
New Journal of PhysicsActive fluids, such as suspensions of microswimmers, are well known to self-organize into complex spatio-temporal flow patterns. An intriguing example is mesoscale turbulence, a state of dynamic vortex structures exhibiting a characteristic length scale.
Henning Reinken +3 more
doaj +1 more source
Bidirectional propulsion of flexible oar swimmers
Tecnología en MarchaThe ability to control microswimmers in the low Reynold’s regime can enable access to previously unreachable regions in the body for biomedical applications such as targeted drug delivery and microsurgery. Flexible oar swimmers can generate propulsion by
Luis Felipe Córdoba-Ramírez
doaj +1 more source
Machine learning strategies for path-planning microswimmers in turbulent flows
, 2019 8 pages, 10 figuresInternational audienceWe develop an adversarial-reinforcement learning scheme for microswimmers in statistically homogeneous and isotropic turbulent fluid flows, in both two (2D) and three dimensions (3D).
Bec, Jérémie +4 more
core +1 more source