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Shape Memory Polymers for Active Cell Culture
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Intelligent Reversible Reconfigurable Metamaterials Based on a Two-Way Shape Memory Polymer.

Haoyu Gu1, Xiaoyu Dong1, Qiankun Zhang1

  • 1School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China.

ACS Applied Materials & Interfaces
|September 30, 2024
PubMed
Summary
This summary is machine-generated.

Intelligent metamaterials with a two-way shape memory polymer (2W-SMP) substrate enable on-demand 3D structure formation and reversible electromagnetic tuning. This breakthrough offers advanced programmable 3D metamaterials with repeatable shape reconfiguration via thermal control.

Keywords:
ethylene-vinyl acetate copolymerreconfigurable metamaterialsreversibletunable resonance frequencytwo-way shape memory polymer

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Area of Science:

  • Materials Science
  • Electromagnetics
  • Polymer Science

Background:

  • Intelligent reversible reconfigurable metamaterials are crucial for advanced 3D structures and tunable properties.
  • Existing metamaterials often lack facile and reversible tunability for dynamic applications.

Purpose of the Study:

  • To develop an intelligent metamaterial with on-demand 3D structure formation and reversible electromagnetic tuning.
  • To demonstrate repeatable shape reconfiguration and electromagnetic property modulation using thermal stimulation.

Main Methods:

  • Utilized a two-way shape memory polymer (2W-SMP) ethylene vinyl acetate copolymer (EVA) actuator substrate.
  • Integrated a patterned flexible-rigid film with the 2W-SMP substrate.
  • Controlled mechanical buckling of the 2W-SMP via thermal stimulation for shape reconfiguration.

Main Results:

  • Achieved remote, on-demand 3D structure formation and shape reconfiguration.
  • Demonstrated repeatable, reversible deformation of the 2W-SMP substrate through temperature control.
  • Showcased reversible tuning of metamaterial electromagnetic properties between 9.15 and 10.82 GHz.

Conclusions:

  • The developed intelligent metamaterial offers significant potential for advanced programmable 3D metamaterials.
  • The 2W-SMP based approach enables reversible tunability and on-demand shape reconfiguration.
  • This work opens new avenues for dynamic and reconfigurable electromagnetic devices.