Results 91 to 100 of about 1,201 (161)
Miniature Robotic Swimmer with Precise 2D Motion Control via Acoustic Vortex‐Induced Propulsion
In this work, a miniature robotic swimmer achieves precise 2D motion using sound waves with customized 3D‐printed lenses. Localized acoustic vortices drive both translation and rotation of the swimmer without mechanical parts. This contactless approach offers a novel route to controlled micro‐scale movement, with promising applications in biomedical ...
Chadi Ellouzi +6 more
wiley +1 more source
Biomimetic Chemotactic Motion of Self‐Assembling Doublet Microrobots
Bio‐hybrid robotics at the microscale promises to advance intelligent systems in biomedical devices, environmental monitoring, and soft robotics by emulating complex behaviors found in living entities, such as chemotaxis.
Zuyao Xiao +2 more
doaj +1 more source
Multimodal Locomotion of Soft Robots
This review comprehensively surveys recent advances in multimodal locomotion within soft robotics. Typical locomotion modes are summarized and categorized. Furthermore, the underlying mechanisms enabling multimodal locomotion are discussed and classified into three primary categories: active control‐based, reconfiguration‐based, and environment ...
Zihao Yuan +4 more
wiley +1 more source
Phytoplankton Tune Local pH to Actively Modulate Circadian Gravitactic Behavior
Diel vertical migration hides an unexpected twist: Phytoplankton quietly engineer their local pH landscape, splitting into behaviorally distinct sub‐groups which stay separated even in identical conditions. Circadian pH changes, occuring over the course of a day, reshape their gravitactic behavior and physiological functions in ways scientists have ...
Arkajyoti Ghoshal +4 more
wiley +1 more source
Following the goal of using active particles as targeted cargo carriers aimed, for example, to deliver drugs towards cancer cells, the quest for the control of individual active particles with external fields is among the most explored topics in active ...
Alexandra Zampetaki +3 more
doaj +1 more source
Microswimmers Knead Nematics into Cholesterics
The hydrodynamic stresses created by active particles can destabilise orientational order present in the system. This is manifested, for example, by the appearance of a bend instability in active nematics or in quasi-2-dimensional living liquid crystals consisting of swimming bacteria in thin nematic films.
Bhavesh Gautam, Juho S. Lintuvuori
openaire +3 more sources
Optimal Control of Slender Microswimmers [PDF]
We discuss a reduced model to compute the motion of slender swimmerswhich propel themselves by changing the curvature of their body. Our approach isbased on the use of Resistive Force Theory for the evaluation of the viscous forcesand torques exerted by the surrounding fluid, and on discretizing the kinematicsof the swimmer by representing its body ...
Zoppello, Marta +4 more
openaire +4 more sources
Hydrophobicity Influence on Swimming Performance of Magnetically Driven Miniature Helical Swimmers
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
Propulsion of Planar V‐Shaped Microswimmers in a Conically Rotating Magnetic Field
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 +3 more
doaj +1 more source
Propulsion of a chiral swimmer in viscoelastic fluids
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 +2 more
doaj +1 more source

