Autor: Louis Tiefenauer, Helga Sorribas, Dora Fitzli, T Mezzacasa, Lukas Leder, Celestino Padeste, Peter Sonderegger
Rok vydání: 1999
Předmět:
Zdroj: Journal of Materials Science: Materials in Medicine. 10:787-791
ISSN: 0957-4530
DOI: 10.1023/a:1008955101492
Popis: Designed networks of neurons are potentially very useful to investigate neural activities. Using photolithography microgrooves suited in size for single neurons have been produced on glass chips. Two conducting gold lanes ending in each microgroove allow extracelluar stimulation of the neurons and recording of their activity. A cell adhesive surface was created by functionalization of glass with the adhesion peptide RGDC. In addition, in order to optimize the contact of the neuronal cell membrane to the electrode surface axonin-1, a specific neural adhesion protein was used. A recombinant form of axonin-1 was produced and immobilized in a correct orientation on protected gold surfaces through a C-terminal cysteine residue. Neurite outgrowth of neurons cultured on chips derivatized with RGDC or axonin-1 were compared. The developed materials and methods represent a first step towards establishing designed functionalized glass surfaces for neurophysiological investigations.
Databáze: OpenAIRE
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