Magnetically controlled 3D-printed structures for soft robotics and biomedical applications

Magnetically controlled 3D-printed structures for soft robotics and biomedical applications

Our research focuses on the development of 3D-printed, magnetically controlled structures using laser powder bed fusion (LPBF), with applications in soft robotics and biomedical devices. We showcase three key innovations: a flexible airway stent, artificial muscles, and bioinspired magnetic butterflies.

The airway stent is designed to clear airway blockages non-invasively using wireless magnetic actuation. It was successfully tested in a 3D-printed airway model, where it was guided to a blockage site and expanded to clear the blockage area.

The artificial muscles, inspired by natural biomechanics, use controlled stiffness variations to achieve smooth, magnetically driven bending and contraction, making them ideal for adaptive robotics.

The bioinspired magnetic butterflies mimic the wing morphing behavior of monarch butterflies, demonstrating lightweight, wireless actuation without embedded electronics—offering potential for micro aerial vehicles.

These applications highlight LPBF’s versatility in creating responsive, flexible structures with tunable mechanical properties, advancing soft robotics for both biomedical and engineering fields.

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  • Organization
    Department of Functional Materials, Institute of Material Science, TU Darmstadt, Germany
  • Profession
    3D-printed, magnetically actuated structures for robotics and healthcare