Sign In

Communications of the ACM

ACM TechNews

4D Printing for Nerve Stimulation

View as: Print Mobile App Share:
For the conductive structures, a thin layer of gold is deposited onto the 3D printed structure under high vacuum.

Researchers at the Technical University of Munich and the Medical & Health Informatics Lab at NTT Research have developed 4D-printed electrodes that wrap themselves around ultra-thin nerve fibers when inserted into moist tissue.

Credit: Andreas Heddergott/TUM

Scientists at Germany's Technical University of Munich (TUM) and U.S.-based technology developer NTT Research four-dimensionally (4D)-printed flexible electrodes for stimulating nerves.

The self-folding electrodes wrap around nerve fibers when inserted into moist tissue via an outer biocompatible hydrogel shell that swells upon contact; the flexible interior material does not swell.

An inner titanium-gold coating sends electrical signals between the electrodes and the nerve fibers, which "allows us to both stimulate the nerves and measure nerve signals," according to TUM's Bernard Wolfrum.

The researchers used the electrodes to sheathe 100-micrometer-diameter nerve fibers in locusts harmlessly.

From Technical University of Munich (Germany)
View Full Article


Abstracts Copyright © 2023 SmithBucklin, Washington, D.C., USA


No entries found