Highlights
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Magnetoactive phase transitional matter (MPTM) is made of NdFeB embedded liquid metal
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MPTMs can reversibly switch between solid and liquid phase
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MPTMs can solder electronic components and assemble parts in hard-to-reach space
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MPTMs can remove foreign objects or deliver drugs in a model stomach
Progress and potential
Summary
Graphical abstract
Keywords
Material advancement progression
Introduction
Kim, H., Lee, K., Oh, J.W., Kim, Y., Park, J.-E., Jang, J., Lee, S.W., Lee, S., Koo, C.M., and Park, C. (2022). Shape-Deformable and Locomotive MXene (Ti3C2Tx)-Encapsulated Magnetic Liquid Metal for 3D-Motion-Adaptive Synapses. Adv. Funct. Mater. 2210385. https://doi.org/10.1002/adfm.202210385
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Video S1. Solid MPTM moves along a circuitous path (formed from the letters “SYSU”) and liquid MPTM is observed to hardly move
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Video S2. MPTM molded in the shape of a Lego minifigure escapes from a cage
Results and discussion
Solid-liquid phase transitional matter
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Video S3. Temperature change of MPTM upon heating by AMF
MPTM mobility
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Video S4. Typical magnetoactive actuated behaviors of solid MPTMs
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Video S5. Typical magnetoactive actuated behaviors of liquid MPTMs
Complex motions through phase change
Applications of MPTM
Smart soldering machines for circuit assembly and repair
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Video S9. Smart soldering robots for circuit assembly and repair
Universal screws for smart assembly
MPTMs for clearing of foreign body and drug delivery
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Video S14. Magnetic manipulation platforms based on permanent magnets
Conclusions
Experimental procedures
Resource availability
Lead contact
Materials availability
Preparation of MPTM
Characterization of MPTM
Liquid-solid phase transitional machine
Solid MPTM behaviors
Liquid MPTM behaviors
Smart soldering MPTM devices
Universal screws
Clearing of foreign body
Drug delivery
Finite element analysis
Data and code availability
Acknowledgments
Author contributions
Declaration of interests
Supplemental information
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Document S1. Figures S1–S19 and Tables S1 and S2
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