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Related Concept Videos

Metallic Solids02:37

Metallic Solids

Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability. Many...

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Shaping magnetic liquid metals into 3D leakage-free, shape-programmable structures and electronics.

Yongyu Lu1,2, Zizheng Wang1, Vagif Abdulla2,3

  • 1Department of Materials Science and Engineering, University of Connecticut, Storrs, CT 06269, USA.

Advanced Electronic Materials
|March 13, 2026
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Summary

Researchers developed a novel method to create 3D liquid metal (LM) structures that are leakage-free and shape-adaptable. This breakthrough enables complex LM patterning for advanced applications in flexible electronics and soft robotics.

Keywords:
3D patterning of liquid metalsleakage-freeoptogenetic electronicsshape programmability and reconfigurability

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Area of Science:

  • Materials Science
  • Robotics
  • Electronics Engineering

Background:

  • Liquid metals (LMs) offer high conductivity and deformability, crucial for flexible electronics and soft robotics.
  • Current LM patterning methods are limited to 2D and struggle with LM fluidity and leakage.
  • Precise 3D patterning of LMs is essential for next-generation device fabrication.

Purpose of the Study:

  • To develop a novel technique for creating complex, leakage-free 3D liquid metal structures.
  • To enable dynamic shape morphing and mechanical robustness in LM-based materials.
  • To demonstrate the potential of these structures in advanced applications like antennas.

Main Methods:

  • Incorporating magnetic particles into LMs to form a magnetically immobilized paste.
  • Utilizing mechanical programming and magnetic immobilization to prevent leakage.
  • Employing induction heating and magnetic-assisted reprogramming for dynamic 3D shape control.
  • Solidifying the LM composite at ambient temperature to create freestanding structures.

Main Results:

  • Successfully created complex 3D leakage-free liquid metal structures.
  • Demonstrated dynamic shape morphing between 2D and 3D configurations.
  • Achieved structures with high compression resistance and self-healing capabilities.
  • Developed a helical magnetic LM antenna showcasing wireless communication and energy harvesting efficiency.

Conclusions:

  • The proposed method overcomes limitations of traditional LM patterning, enabling robust 3D structures.
  • Magnetically immobilized LM paste offers a viable solution for leakage prevention while maintaining conductivity.
  • The shape-adaptable and self-healing properties of these structures open new avenues for advanced LM applications.