Results 41 to 50 of about 5,206 (163)
Coarse Graining Nonisothermal Microswimmer Suspensions
Frontiers in Physics, 2021 We investigate coarse-grained models of suspended self-thermophoretic microswimmers. Upon heating, the Janus spheres, with hemispheres made of different materials, induce a heterogeneous local solvent temperature that causes the self-phoretic particle ...
Sven Auschra +4 more
doaj +1 more source
Modelling chemotaxis of microswimmers: from individual to collective behavior
, 2019 We discuss recent progress in the theoretical description of chemotaxis by coupling the diffusion equation of a chemical species to equations describing the motion of sensing microorganisms. In particular, we discuss models for autochemotaxis of a single
Liebchen, B., Löwen, H.
core +1 more source
4D Printing of Multimaterial Flexible Magneto‐Active Polymers
Advanced Materials Technologies, EarlyView.Magneto‐active polymers are 3D‐printed with tunable mechanical and magnetic properties using both superparamagnetic and hard ferromagnetic fillers. Nano‐CT imaging reveals the spatial distribution of particles within the matrix. Programmable magnetization patterns and soft, flexible architectures enable responsive actuation, offering exciting ...
Naji Tarabay +6 more
wiley +1 more source
Fission and fusion scenarios for magnetic microswimmer clusters
Nature Communications, 2016 The collective motion of microswimmers is determined by not only their direct interaction, but also the hydrodynamics forces mediated by the surrounding flow field.
Francisca Guzmán-Lastra +2 more
doaj +1 more source
Advanced Robotics Research, EarlyView.Functional surfaces are investigated as a foundation for reconfigurable microscale systems with sensing and actuation capabilities. Advances in additive manufacturing enable our development of planar arrays of hybrid‐material, compliant microdevices that convert environmental stimuli into programmed motion and visual responses.
Sandra Edward +5 more
wiley +1 more source
Theoretical framework for two-microswimmer hydrodynamic interactions
New Journal of Physics, 2021 Hydrodynamic interactions are crucial for determining the cooperative behavior of microswimmers at low Reynolds numbers. Here we provide a comprehensive analysis of the scaling laws and the strength of the interactions in the case of a pair of three ...
Sebastian Ziegler +4 more
doaj +1 more source
Flagellar swimmers oscillate between pusher- and puller-type swimming
, 2015 Self-propulsion of cellular microswimmers generates flow signatures, commonly classified as pusher- and puller-type, which characterize hydrodynamic interactions with other cells or boundaries. Using experimentally measured beat patterns, we compute that
Friedrich, Benjamin M., Klindt, Gary S.
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Cross‐Scale Hierarchical Targeted Delivery System Based on Small‐Scale Magnetic Robots
Advanced Robotics Research, EarlyView.This article reviews a cross‐scale hierarchical targeted delivery system that integrates magnetic continuum robots and magnetic microrobots. By combining rapid long‐range navigation with precise microscale targeting, the system overcomes key limitations of single‐scale approaches.
Junjian Zhou +4 more
wiley +1 more source
A Path toward Inherently Asymmetric Micromotors
Advanced Intelligent Systems, 2023 Since the highly cited paper by Purcell postulating the “Scallop theorem” almost 50 years ago, asymmetry is an unavoidable part of micromotors. It is frequently induced by self‐shadowing or self‐masking, resulting in so‐called Janus colloids.
Purnesh Chattopadhyay +3 more
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Gravitaxis of asymmetric self-propelled colloidal particles [PDF]
, 2014 Many motile microorganisms adjust their swimming motion relative to the gravitational field and thus counteract sedimentation to the ground. This gravitactic behavior is often the result of an inhomogeneous mass distribution which aligns the ...
Bechinger, Clemens +5 more
core +2 more sources