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Related Experiment Video

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Omnidirectional Printing of Soft Elastomer for Liquid-State Stretchable Electronics.

Jiachen Wang1, Sennan Yang2, Peitao Ding3

  • 1College of Engineering and Applied Sciences, National Laboratory of Solid State Microstructure, Collaborative Innovation Center of Advanced Microstructures, and Jiangsu Key Laboratory of Artificial Functional Materials , Nanjing University , Nanjing 210093 , China.

ACS Applied Materials & Interfaces
|May 4, 2019
PubMed
Summary

Researchers developed a 3D printing method for creating stretchable electronics using liquid-state materials. This innovation enables precise fabrication of complex, durable devices like smart gloves for gesture recognition.

Keywords:
liquid metalliquid-state deviceskin-like electronicsstretchable electronicsthree-dimensional printing

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Area of Science:

  • Materials Science
  • Electronics Engineering
  • Robotics

Background:

  • Stretchable electronics offer expanded applications beyond rigid conventional electronics.
  • Liquid-state devices provide excellent stretchability and durability but lack robust fabrication methods.
  • Current fabrication approaches hinder the precise assembly of liquid-state materials into functional systems.

Purpose of the Study:

  • To report an additive manufacturing platform for digital fabrication of 3D elastomeric structures.
  • To enable precise and efficient assembly of liquid-state materials for advanced electronic devices.
  • To overcome limitations in current fabrication approaches for liquid-state stretchable electronics.

Main Methods:

  • Formulated a shear-thinning ink for omnidirectional printing.
  • Utilized additive manufacturing to create complex 3D elastomeric architectures without sacrificial materials.
  • Integrated liquid metal into embedded microchannels for sensing capabilities.

Main Results:

  • Successfully generated various elastic features with complex architectures, including overhanging and suspended structures.
  • Demonstrated facile creation of elastomeric sensors with strain- and pressure-sensing capabilities.
  • Developed a smart glove for hand gesture capture as a fully integrated liquid-state electronic system.

Conclusions:

  • The developed additive manufacturing platform precisely fabricates 3D elastomeric structures for liquid-state electronics.
  • This approach facilitates the creation of advanced sensors and integrated systems like smart gloves.
  • The liquid-state stretchable electronics show potential for biomedical instruments, wearables, and soft robotics.