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Polymer hydrogel microelectrodes for neural communication
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology.
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics .
Linkoping Univ, Appl Phys Lab, Dept Phys & Measurement Technol, S-58183 Linkoping, Sweden Linkoping Univ, Dept Cellbiol, Inst Biomed & Surg, S-58183 Linkoping, Sweden.
2002 (English)In: Biomedical microdevices (Print), ISSN 1387-2176, E-ISSN 1572-8781, Vol. 4, no 1, 43-52 p.Article in journal (Refereed) Published
Abstract [en]

A conducting polymer hydrogel electrode was electrochemically deposited in micromachined via holes and the charge delivery capacity (CDC) was studied. Polymer hydrogel microelectrodes, with a geometric area of 1000 mum(2), and a capacitance of up to 850 nF were fabricated. The impedance of a 1,000 mum(2) polymer hydrogel electrode deposited with 8 muC was measured as low as 8.5 kOmega. We studied neural cell growth on structures to be used as neural interfaces. Directed cell growth was achieved by imposing a topographical structure on the substrate. Due to the interesting mechanical and chemical adaptability of the polymer hydrogel material and its large charge delivery capacity and low impedance we think that it is an interesting material for neural communication.

Place, publisher, year, edition, pages
2002. Vol. 4, no 1, 43-52 p.
Keyword [en]
conducting polymer, polypyrrole, hydrogel, neural electrodes, neural prostheses
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-48784OAI: oai:DiVA.org:liu-48784DiVA: diva2:269680
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2017-12-12

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Nyberg, TobiasInganäs, Olle

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The Institute of TechnologyDepartment of Physics, Chemistry and BiologyBiomolecular and Organic Electronics
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