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Adsorbed Eutectic GaIn Structures on a Neoprene Foam for Stretchable MRI Coils.
Journal article

Adsorbed Eutectic GaIn Structures on a Neoprene Foam for Stretchable MRI Coils.

  • Varga M Electronics Laboratory, ETH Zurich, Gloriastrasse 35, 8092, Zurich, Switzerland.
  • Mehmann A Electronics Laboratory, ETH Zurich, Gloriastrasse 35, 8092, Zurich, Switzerland.
  • Marjanovic J Institute for Biomedical Engineering, ETH Zurich and University of Zurich, Gloriastrasse 35, 8092, Zurich, Switzerland.
  • Reber J Institute for Biomedical Engineering, ETH Zurich and University of Zurich, Gloriastrasse 35, 8092, Zurich, Switzerland.
  • Vogt C Electronics Laboratory, ETH Zurich, Gloriastrasse 35, 8092, Zurich, Switzerland.
  • Pruessmann KP Institute for Biomedical Engineering, ETH Zurich and University of Zurich, Gloriastrasse 35, 8092, Zurich, Switzerland.
  • Tröster G Electronics Laboratory, ETH Zurich, Gloriastrasse 35, 8092, Zurich, Switzerland.
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  • 2017-10-14
Published in:
  • Advanced materials (Deerfield Beach, Fla.). - 2017
eutectic gallium indium materials
stretchable conductors
stretchable electronics
wearable magnetic resonance imaging coils
English Stretchable conductors based on eutectic gallium-indium (eGaIn) alloy are patterned on a polychloroprene substrate (neoprene foam) using stencil printing. By tuning the amount of eGaIn on the neoprene substrate, different strain-sensitivity of electrical resistance is achieved. Conductors with a layer of eGaIn, which adsorbs to the walls of 60-100 µm wide neoprene cells, change their electrical resistance for 5% at 100% strain. When the amount of eGaIn is increased, the cells are filled with eGaIn and the strain-sensitivity of the electrical resistance rises to 300% at 100% strain. The developed conductors are patterned as stretchable on-body coils for receiving magnetic signals in a clinical magnetic resonance imaging setup. First images with a stretchable coil are acquired on an orange and compared to the images that are recorded using a rigid copper coil of the same size.
Language
  • English
Open access status
closed
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Persistent URL
https://sonar.rero.ch/global/documents/215453
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