A deformable magnetizable worm in a magnetic field—A prototype of a mobile crawling robot

Zimmermann, Klaus; Налетова, В.А.; Zeidis, Igor; Турков, В.А.; Kolev, E.; Lukashevich, Mikhail V.; Stepanov, Gennadij V.

doi:10.1016/j.jmmm.2006.11.153

Cited by 50 publications

(27 citation statements)

References 4 publications

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“…Belouzov [7] –Zhabotinsky [8] ), and a polymer-magnetic composite swimmer actuated by a magnetic field. [9] Figure 1a illustrates types of material asymmetries, which could be due to structural or compositional variations. A recent review on nanomaterials assembly classified these variations in detail.…”

Section: Definition Of Anisotropy In Materials Sciencementioning

confidence: 99%

Bioinspired Directional Surfaces for Adhesion, Wetting, and Transport

Hancock

Sekeroglu

Demirel

2012

Adv Funct Materials

243

192

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In Nature, directional surfaces on insect cuticle, animal fur, bird feathers, and plant leaves are comprised of dual micro-nanoscale features that tune roughness and surface energy. This feature article summarizes experimental and theoretical approaches for the design, synthesis and characterization of new bioinspired surfaces demonstrating unidirectional surface properties. The experimental approaches focus on bottom-up and top-down synthesis methods of unidirectional micro- and nanoscale films to explore and characterize their anomalous features. The theoretical component of the review focuses on computational tools to predict the physicochemical properties of unidirectional surfaces.

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Section: Definition Of Anisotropy In Materials Sciencementioning

confidence: 99%

Bioinspired Directional Surfaces for Adhesion, Wetting, and Transport

Hancock

Sekeroglu

Demirel

2012

Adv Funct Materials

243

192

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“…In this field the body velocity amounts to 20 cm/s, which is an order greater than the velocity of the mover proposed by Japanese authors [1]. The movers described in [2][3][4] are autonomous (there is no external energy supply), do not contain solid details, and, as distinct from the mover proposed by the Japanese authors, do not cut off the channel cross section. For this reason, these movers can be employed in medical investigations (for transferring medicines or a videocamera in large blood vessels).…”

mentioning

confidence: 94%

“…The development of movers, whose directional motion in a channel is due to deformation of bodies made of magnetizable materials (magnetic fluid in an elastic shell or body made of magnetizable composite) in a variable magnetic field is a new promising problem which was solved in [1][2][3][4][5][6]. The above-mentioned magnetizable composites are elastic materials with a very small Young modulus and appreciable viscous properties.…”

mentioning

confidence: 99%

“…The velocity of the motion of this system in the channel is about 1 cm/s. In [2][3][4] an experimental setup was first described, in which slender prolate bodies (movers) made of magnetizable materials (a cylindrical body of magnetizable composite [2,4] and a cylindrical elastic capsule filled with a magnetic fluid [3]) moved in a channel due to bending strains caused by a "traveling" magnetic field. The traveling magnetic field was produced by a system of electromagnetic coils switched at a given frequency and located along the channel sides, so that the coil axes and the channel axis were in the same horizontal plane.…”

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confidence: 99%

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Motion of a slender body made of magnetizable composite in a traveling magnetic field

2013

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The motion of a slender body made of magnetizable composite in a channel, along which coils producing a heterogeneous "traveling" magnetic field are mounted, is investigated. The coil axes are vertical and lie in the same plane. A mathematical model of a slender body made of viscoelastic magnetizable material is proposed. The magnetic force is calculated from a formula used in ferrohydrodynamics of magnetic fluids with equilibrium magnetization. The problem of the motion of this body in a channel in a vertical plane under the action of the magnetic field produced in an experimental setup is numerically solved. The dependence of the body velocity on the coil switching frequency is calculated and the effect of different problem parameters on the form of this dependence is studied. The theoretical results are compared with the experimental data.

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“…These involve worm-like locomotion systems, where an elastic capsule filled with a ferrofluid travels in an external magnetic field alternating at frequencies up to kHz or locomotion of magnetic fluid layers driven by travelling external magnetic field waves (cf. Zimmermann et al 2007;Trahms 2009). Another example includes magnetofluidic dampers in which the oscillatory magnetic field is used to control the viscosity of a ferrofluid inside a damper (cf.…”

Section: Introductionmentioning

confidence: 99%

Short-time self-diffusion, collective diffusion and effective viscosity of dilute hard sphere magnetic suspensions

Mizerski

Wajnryb

2016

J. Fluid Mech.

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The virial corrections to short-time self-and collective diffusion coefficients as well as the effective viscosity are calculated for suspensions of hard spheres with the same radii and constant (blocked within the particle) magnetization modelled by a point dipole. Analytic, integral formulae derived from basic principles of statistical mechanics are provided for both cases -in the absence and in the presence of an external magnetic field. In the former case the diffusion and viscosity coefficients are evaluated numerically as a function of the strength of magnetic interactions between the particles and it is reported that the translational collective diffusion coefficient is significantly greater than all the other coefficients. In the presence of an external magnetic field the coefficients become anisotropic and are evaluated in the asymptotic regime of weak interparticle magnetic interactions.

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A deformable magnetizable worm in a magnetic field—A prototype of a mobile crawling robot

Cited by 50 publications

References 4 publications

Bioinspired Directional Surfaces for Adhesion, Wetting, and Transport

Bioinspired Directional Surfaces for Adhesion, Wetting, and Transport

Motion of a slender body made of magnetizable composite in a traveling magnetic field

Short-time self-diffusion, collective diffusion and effective viscosity of dilute hard sphere magnetic suspensions

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