Results 61 to 70 of about 5,206 (163)

The control effort to steer self-propelled microswimmers depends on their morphology: comparing symmetric spherical versus asymmetric L-shaped particles

open access: yesRoyal Society Open Science, 2021
Active goal-directed motion requires real-time adjustment of control signals depending on the system’s status, also known as control. The amount of information that needs to be processed depends on the desired motion and control, and on the system’s ...
Julia M. Riede   +3 more
doaj   +1 more source

Corner accumulation behavior of spermatozoa in microchannels [PDF]

open access: yes, 2014
This paper was presented at the 4th Micro and Nano Flows Conference (MNF2014), which was held at University College, London, UK. The conference was organised by Brunel University and supported by the Italian Union of Thermofluiddynamics, IPEM, the ...
4th Micro and Nano Flows Conference (MNF2014)   +3 more
core  

Destabilization of a flow focused suspension of magnetotactic bacteria

open access: yes, 2016
Active matter is a new class of material, intrinsically out-of equilibrium with intriguing properties. So far, the recent upsurge of studies has mostly focused on the spontaneous behavior of these systems --in the absence of external constraints or ...
Bocquet, Lyderic   +4 more
core   +2 more sources

Swimming Characteristics of Bioinspired Helical Microswimmers Based on Soft Lotus-Root Fibers

open access: yesMicromachines, 2017
Various kinds of helical swimmers inspired by E. coli bacteria have been developed continually in many types of researches, but most of them are proposed by the rigid bodies.
Jia Liu   +5 more
doaj   +1 more source

Magnetic microswimmers with infrared‐induced shape transformation

open access: yesMicro & Nano Letters, 2021
Soft untethered microswimmers have recently been demonstrated to be capable of transporting and delivering cargos by external control while maintaining biocompatibility and safety.
Runhuai Yang   +4 more
doaj   +1 more source

A Review on the Motion of Magnetically Actuated Bio-Inspired Microrobots

open access: yesApplied Sciences, 2022
Nature consists of numerous solutions to overcome challenges in designing artificial systems. Various actuation mechanisms have been implemented in microrobots to mimic the motion of microorganisms. Such bio-inspired designs have contributed immensely to
Shanuka Dodampegama   +8 more
doaj   +1 more source

Stationary shapes of deformable particles moving at low Reynolds numbers

open access: yes, 2015
Lecture Notes of the Summer School ``Microswimmers -- From Single Particle Motion to Collective Behaviour'', organised by the DFG Priority Programme SPP 1726 (Forschungszentrum J{\"{u}}lich, 2015).Comment: Pages C7.1-16 of G. Gompper et al.
A. Mietke   +27 more
core   +1 more source

From 0D to 3D liquid crystal elastomers architectures: Fabrications and applications

open access: yesResponsive Materials, EarlyView.
This review presents a dimension‐oriented overview of liquid crystal elastomers (LCEs), highlighting their molecular alignment, fabrication strategies, and programmable deformations from 0D particles to 3D architectures. Emphasis is placed on how dimensionality guides design principles, enables diverse actuation modes, and bridges fundamental ...
Mingxuan Liu   +8 more
wiley   +1 more source

Run-and-Tumble Dynamics of Self-Propelled Particles in Confinement

open access: yes, 2015
Run-and-tumble dynamics is a wide-spread mechanism of swimming bacteria. The accumulation of run-and-tumble microswimmers near impermeable surfaces is studied theoretically and numerically in the low-density limit in two and three spatial dimensions ...
Elgeti, Jens, Gompper, Gerhard
core   +1 more source

Activatable smart contrast agents for photoacoustic imaging

open access: yesSmart Molecules, EarlyView.
This review highlights recent advances in smart activatable photoacoustic imaging (PAI) contrast agents, which dynamically modulate their optical properties in response to external stimuli or microenvironmental cues. It discusses their molecular design, activation mechanisms, biomedical applications, and future prospects for clinically tailored use ...
Donghyeon Oh   +5 more
wiley   +1 more source

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