Cited by 46Neuroscience and Neural EngineeringAnalog and Mixed-Signal Circuit DesignNerve injury and regeneration

Design,in vitro and in vivo assessment of a multi-channel sieve electrode with integrated multiplexer

Ramachandran, Anup, Schuettler, Martin, Lago, Natalia, Doerge, Thomas, Koch, Klaus Peter, Navarro, Xavier, Hoffmann, Klaus-Peter, Stieglitz, Thomas·2006·Journal of Neural Engineering

Abstract

This paper reports on the design, in vitro and in vivo investigation of a flexible, lightweight, polyimide based implantable sieve electrode with a hybrid assembly of multiplexers and polymer encapsulation. The integration of multiplexers enables us to connect a large number of electrodes on the sieve using few input connections. The implant assembly of the sieve electrode with the electronic circuitry was verified by impedance measurement. The 27 platinum electrodes of the sieve were coated with platinum black to reduce the electrode impedance. The impedance magnitude of the electrode sites on the sieve (geometric surface area 2,200 microm(2)) was |Z(f=1kHz)| = 5.7 kOmega. The sieve electrodes, encased in silicone, have been implanted in the transected sciatic nerve of rats. Initial experiments showed that axons regenerated through the holes of the sieve and reinnervated distal target organs. Nerve signals were recorded in preliminary tests after 3-7 months post-implantation.

Integrity signals

Registry

Crossref · 10.1088/1741-2560/3/2/005

Cites

27 of 27 references verified0 citation errors · 0 not checkable

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  • Silicon sieves were observed to lead to extensive axon death after implantation and were replaced by more flexible materials such as polyimide in later designs.

    “Silicon sieves were observed to lead to extensive axon death after implantation and were replaced by more flexible materials such as polyimide in later designs (Shimatani et al., 2003; Ramachandran et al., 2006).”

    From Foreign Body Reaction to Implanted Biomaterials and Its Impact in Nerve Neuroprosthetics (2021) · cites this paper as Ramachandran et al., 2006

  • Sieve electrodes implanted into regenerating nerves in rodent models have been successfully used to record gustatory and sensorimotor signals weeks after implantation.

    “Sieve electrodes implanted into regenerating nerves in rodent models have been successfully used to record gustatory (Shimatani et al., 2003) as well as sensorimotor (Ramachandran et al., 2006) signals weeks after implantation.”

    From Foreign Body Reaction to Implanted Biomaterials and Its Impact in Nerve Neuroprosthetics (2021) · cites this paper as Ramachandran et al., 2006

  • Studies have achieved long-term recordings in freely moving animals using microchannel devices for periods 4 months post-implantation, while only small signals in response to electrical stimulation have been recorded at such chronic timepoint with sieve electrodes.

    “Studies have achieved long-term recordings in freely moving animals using microchannel devices for periods 4 months post-implantation (Gore et al., 2015), while only small signals in response to electrical stimulation have been recorded at such chronic timepoint with sieve electrodes (Ramachandran et al., 2006).”

    From Foreign Body Reaction to Implanted Biomaterials and Its Impact in Nerve Neuroprosthetics (2021) · cites this paper as Ramachandran et al., 2006

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Authors
Ramachandran, A., Schuettler, M., Lago, N., Doerge, T., Koch, K. P., Navarro, X., Hoffmann, K.-P., & Stieglitz, T.
Affiliations
  • Fraunhofer Institute for Biomedical Engineering (DE)
  • Universitat Autònoma de Barcelona (ES)
  • University of Freiburg (DE)
Venue
Journal of Neural Engineering
Published
2006-04-18
Volume
3
Issue
2
Pages
114-124
ISSN
  • 1741-2552 (ISSN-L)
  • 1741-2560
OpenAlex
W2066044990
Cited by
46
References
27
Citations by year
2024: 2 · 2023: 1 · 2021: 4 · 2020: 3 · 2019: 2 · 2018: 1 · 2017: 2 · 2016: 2 · 2015: 4 · 2014: 4 · 2013: 3 · 2012: 3
FWCI
1.39
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Neural Engineering (publishedVersion)
  • PubMed (publishedVersion)
  • Publikationsdatenbank der Fraunhofer-Gesellschaft (Fraunhofer-Gesellschaft) (submittedVersion)
  • Fraunhofer-Publica (Fraunhofer-Gesellschaft) (submittedVersion)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neural Engineering
  • Physical Sciences › Engineering › Biomedical Engineering › Analog and Mixed-Signal Circuit Design
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nerve injury and regeneration
Keywords
implanted electrodes, multiplexer, polyimide, electrode impedance, sciatic nerve transection, nerve regeneration, axon reinnervation, peripheral nerve recording, silicone encapsulation, flexible electronics
MeSH terms
Action Potentials, Animals, Electric Stimulation, Electrodes, Implanted, Equipment Design, Microelectrodes, Sciatic Nerve, Signal Processing, Computer-Assisted, Rats, Sprague-Dawley, Systems Integration, Equipment Failure Analysis, Rats

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