Neural implants contain integrated circuits (ICs) — commonly called chips — built on silicon. These implants need to be small and flexible to mimic circumstances inside the human body.
Jan 7 2025 Neural implants contain integrated circuits — commonly called chips — built on silicon. These implants need to be small and flexible to mimic circumstances inside the human body. However, the environment within the body is corrosive, which raises concerns about the durability of implantable silicon ICs. A team of researchers from the Bioelectronic s Section led by Dr.
"Miniaturized neural implants have enormous potential to transform healthcare, but their long-term stability in the body is a major concern", explains Vasso Giagka, researcher at the Technical University Delft. "Our research not only identifies key challenges but also provides practical guidelines to enhance the reliability of these devices, bringing us closer to safe and long-lasting clinical solutions.
Analysis of the materials of the chips revealed that there was degradation of the chips in the bare regions, but there was only limited degradation in the PDMS-coated regions. Surprised scientists "We were all surprised", shares PhD student Kambiz Nanbakhsh, who is the first author of this work. "I did not expect microchips to be so stable when soaked and electrically biased in hot salt water."
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