Results 91 to 100 of about 3,147 (162)

µ-PIV Measurements of Flows Generated by Photolithography-Fabricated Achiral Microswimmers

, 2019
Robotic micro/nanoswimmers can potentially be used as tools for medical applications, such as drug delivery and noninvasive surgery. Recently, achiral microswimmers have gained significant attention because of their simple structures, which enables high ...
U Kei Cheang, Xiangcheng Shi, Jamel Ali, Dalhyung Kim, Min Jun Kim, Liyuan Tan   +5 more
core   +1 more source

Microswimmers – From Single Particle Motion to Collective Behavior [PDF]

, 2016
Locomotion of autonomous microswimmers is a fascinating field at the cutting edge of science. It combines the biophysics of self-propulsion via motor proteins, artificial propulsion mechanisms, swimming strategies at low Reynolds numbers, the ...
Löwen, H., Herminghaus, Stephan, Gerhard Gompper, Hartmut Löwen, Isele-Holder, R., Stark, H., Clemens Bechinger, Bechinger, C., Winkler, R., Stephan Herminghaus, Stark, Holger, U. Benjamin Kaupp, Holger Stark, Roland G. Winkler, Gompper, Gerhard, Löwen, Hartmut, Herminghaus, S., Bechinger, Clemens, Winkler, Roland G., Isele-Holder, Rolf, Kaupp, U. Benjamin, Gompper, G., Kaupp, U., Rolf Isele-Holder   +23 more
core   +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

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

Bidirectional propulsion of flexible oar swimmers

Tecnología en Marcha
The 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

Motion of bio-hybrid microswimmers in optical potentials

, 2017
The behavior of microswimmers in the form of half-gold-coated silica Janus spheres with attached bacteria through streptavidin-biotin binding is studied in harmonic optical potentials, as well as in more complex (speckle) optical ...
Volpe, Giovanni, Volpe, Giovanni,, Helgadottir, Saga, Helgadóttir, Saga Huld,, Ruggero Verre, Verre, Ruggero,, Saga Helgadottir, Giovanni Volpe, Verre, Ruggero, Helgad\uf3ttir, Saga Huld   +9 more
core   +1 more source

Dynamical Swirl Structures Powered by Microswimmers in Active Nematics

Active nematics, in their pure form, have demonstrated a plethora of dynamic and steady state behaviors, including large-scale dynamic structures, collective flows, and intricate multi-spatial temporal dynamics.
Mondal, Partha Sarathi, Mishra, Shradha, Vicsek, Tamás, Mishra, Pawan Kumar   +3 more
core  

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

Quantitative measurements of non-equilibrium interactions of catalytic microswimmers with dual colloidal tracers [PDF]

Catalytic microswimmers convert the chemical energy of a fuel into motion, sustaining spatial chemical gradients and fluid flows that drive their propulsion.
Carrasco, Celso, Aubret, Antoine, Shen, Zaiyi, Lintuvuori, Juho S., Martinet, Quentin, Palacci, Jérémie   +5 more
core  

Autonomous Cargo Transport with Biohybrid Microswimmers Enabled by Light-Mediated Bacteria-Cargo Communication. [PDF]

Adv Mater
Zheng X, Zheng Y, Heidari A, Wegner SV.
europepmc   +1 more source