Programmable Transformation and Controllable Locomotion of Magnetoactive Soft Materials with 3D-Patterned...

Area of Science:

• Soft Robotics
• Materials Science
• Metamaterials

Background:

• Magnetoactive soft materials (MASM) offer versatile shape manipulation via magnetic fields.
• Existing MASM research with hard-magnetic profiles has limitations in transformation mechanisms, high-dimensional shape changes, and multistable locomotion.

Purpose of the Study:

• To develop a systematic methodology for programmable transformation and controllable locomotion of MASM.
• To investigate the transformation mechanisms and high-dimensional shape manipulation capabilities of MASM.
• To demonstrate multistable locomotion for practical applications.

Main Methods:

• Developed a 3D-patterned continuum magnetization strategy for MASM.
• Created an iterative computational model balancing magnetic and elastic torques for precise transformation prediction.
• Experimentally demonstrated complex shape transformations (1D to 4D) and multimodal locomotion.

Main Results:

• Achieved programmable and precise shape transformations in solid MASM, MASM-based meshes, and lattices.
• Demonstrated 1D to 2D, 2D to 3D, and 3D to 4D transformations.
• Verified multistable locomotion, including roll, open, and close movements, for applications like wall climbing and drug delivery.

Conclusions:

• The developed methodology enables precise control over MASM shape transformation and locomotion.
• MASM with 3D magnetization shows significant potential for advanced soft robotics and biomedical applications.
• This work provides a foundation for designing sophisticated magnetoactive soft material systems.