Stability of Soft Magnetic Helical Microrobots

Stability of Soft Magnetic Helical Microrobots

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Nano/microrobotic swimmers have many possible biomedical applications such as drug delivery and micro-manipulation.This paper examines one of the most promising classes of these: rigid magnetic microrobots that are propelled through bulk 3 Piece Queen Bed w/Bench fluid by rotation induced by a rotating magnetic field.Propulsion corresponds to steadily rotating and translating solutions of the dynamics of such microrobots that co-rotate with the magnetic field.To be observed in experiments and be amenable to steering control, such solutions must also be stable to perturbations.

In this paper, we analytically derive a criterion for the stability of such steadily rotating solutions 15Amp Mains Plug Top for a microrobot made of soft magnetic materials, which have a magnetization that depends on the applied field.This result generalizes previous stability criteria we obtained for microrobots with a permanent magnetization.