Results 91 to 100 of about 5,206 (163)

Flow Navigation by Smart Microswimmers via Reinforcement Learning

, 2017
Smart active particles can acquire some limited knowledge of the fluid environment from simple mechanical cues and exert a control on their preferred steering direction.
Biferale, Luca, Celani, Antonio, Colabrese, Simona, Gustavsson, Kristian   +3 more
core   +1 more source

Particle-scale statistical theory for hydrodynamically induced polar ordering in microswimmer suspensions

, 2018
Previous particle-based computer simulations have revealed a significantly more pronounced tendency of spontaneous global polar ordering in puller (contractile) microswimmer suspensions than in pusher (extensile) suspensions.
Hoell, Christian, Löwen, Hartmut, Menzel, Andreas M.   +2 more
core   +1 more source

Propulsion of Planar V‐Shaped Microswimmers in a Conically Rotating Magnetic Field

Advanced Intelligent Systems
Planar magnetic microswimmers bear great potential for in vivo biomedical applications as they can be mass‐produced at minimal costs using standard photolithography techniques. Therefore, it is central to understand how to control their motion.
Yasin Cagatay Duygu, U Kei Cheang, Alexander M. Leshansky, Min Jun Kim   +3 more
doaj   +1 more source

Propulsion of a chiral swimmer in viscoelastic fluids

Physical Review Research
Microswimmers 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, John J. Molina, Ryoichi Yamamoto   +2 more
doaj   +1 more source

Anisotropic mesoscale turbulence and pattern formation in microswimmer suspensions induced by orienting external fields

New Journal of Physics, 2019
This paper studies the influence of orienting external fields on pattern formation, particularly mesoscale turbulence, in microswimmer suspensions. To this end, we apply a hydrodynamic theory that can be derived from a microscopic microswimmer model ...
Henning Reinken, Sebastian Heidenreich, Markus Bär, Sabine H L Klapp   +3 more
doaj   +1 more source

Pattern selection and the route to turbulence in incompressible polar active fluids

New Journal of Physics
Active 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, Sebastian Heidenreich, Markus Bär, Sabine H L Klapp   +3 more
doaj   +1 more source

Trypanosoma brucei moving in microchannels and through constrictions

New Journal of Physics
Trypanosoma 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, Julian I U Peters, Holger Stark   +2 more
doaj   +1 more source

Alignment-induced self-organization of autonomously steering microswimmers: Turbulence, clusters, vortices, and jets

Physical Review Research
Microorganisms can sense their environment and adapt their movement accordingly, which gives rise to a multitude of collective phenomena, including active turbulence and bioconvection.
Segun Goh, Elmar Westphal, Roland G. Winkler, Gerhard Gompper   +3 more
doaj   +1 more source

Physical embodiment enables information processing beyond explicit flow sensing in active matter. [PDF]

Sci Adv
Paul D, Milosevic N, Scherf N, Cichos F.
europepmc   +1 more source

Supramolecular Engineering of Melamine-Barbiturate Assemblies for Polyphenol Encapsulation and Antioxidant Delivery. [PDF]

ACS Omega
Bridenko LA, Moskalenko IV, Nishanbaev IZ, Krylov VA, Zhukov MV, Skorb EV.   +5 more
europepmc   +1 more source