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

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

Matija Varga, Andreas Mehmann, Josip Marjanovic, Jonas Reber, Christian Vogt, Klaas Paul Pruessmann, Gerhard Tröster

Adv Mater. 2017 Nov;29(44).

PMID: 29027724

Abstract:

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.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP9010984	Polychloroprene		9010-98-4	Price

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