A polymer neural probe with tunable flexibility

Fredrik Ejserholm, A. Vastesson, T. Haraldsson, W. van der Wijngaart, J. Schouenborg, Lars Wallman, Martin Bengtsson

Forskningsoutput: Kapitel i bok/rapport/Conference proceedingKonferenspaper i proceedingPeer review


A novel polymeric material, off-stoichiometry thiol-ene-epoxy (OSTE+), has been evaluated for the fabrication of neural implants. OSTE+ is easily photo-structurable and exhibits mechanical properties suitable for stable implantation of the probe into brain tissue, while being sufficiently soft at physiological temperatures to reduce living tissue damage. The facile processing of OSTE+ allows use in applications where SU-8 or polyimide currently are the materials of choice. Uniquely, OSTE+ has a Young's modulus of 1.9 GPa at 10 degrees C decreasing almost two orders of magnitude to 30 MPa at 40 degrees C, which can be compared to the Young's modulus of 2.1 GPa for SU-8. We show a probe, with nine gold electrode sites, implanted into 0.5% agar at 40 degrees C using active cooling during the implantation.
Titel på värdpublikation2013 6th International IEEE/Embs Conference on Neural Engineering (NER)
FörlagIEEE - Institute of Electrical and Electronics Engineers Inc.
StatusPublished - 2013
Evenemang6th International IEEE EMBS Conference on Neural Engineering (NER) - San Diego, CA
Varaktighet: 2013 nov. 62013 nov. 8


ISSN (tryckt)1948-3546


Konferens6th International IEEE EMBS Conference on Neural Engineering (NER)

Ämnesklassifikation (UKÄ)

  • Medicinteknik


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