Neural networks on chemically patterned "cultured probe" electrode arrays: network growth and activity patterns

Wim Rutten, T.G. Ruardij, B.R.M. van Buul, B.H. Roelofsen

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    Abstract

    A 'cultured probe' is a hybrid type of neural information transducer or prosthesis, for stimulation and/or recording of neural activity in the brain or the spinal cord (ventral motor region or dorsal sensory region). It consists of a micro electrode array (MEA) on a planar substrate, each electrode being covered and surrounded by a locally confined network of cultured neurons, obtained by chemical patterning of the substrate. The purpose of the cultured cells is that they act as intermediates for collateral sprouts from the in vivo system, thus allowing for an effective and selective neuron electrode interface. As the local neural network will become spontaneously active and has the capability of information processing, one may envisage future applications of these intermediary networks as 'front-end' signal processors. Two aspects of the development of this kind of cultured probe device are described. First, it is shown how substrates can be chemically modified to confine developing networks, cultured from dissociated rat cortex cells, to the surrounding of an electrode site. Secondly, the paper presents results on neuronal activity in such confined, circular networks and synchronized activity between two such interconnected networks.
    Original languageUndefined
    Title of host publicationProceedings of the 1st International IEEE EMBS conference on Neural Engineering, Capri island, Italy
    PublisherIEEE
    Pages120-123
    Number of pages4
    ISBN (Print)0-7803-7819-9
    DOIs
    Publication statusPublished - 20 Mar 2003
    Event1st International IEEE/EMBS Conference on Neural Engineering, NER 2003 - Capri, Italy
    Duration: 20 Mar 200322 Mar 2003
    Conference number: 1

    Publication series

    Name
    PublisherIEEE

    Conference

    Conference1st International IEEE/EMBS Conference on Neural Engineering, NER 2003
    Abbreviated titleNER
    CountryItaly
    CityCapri
    Period20/03/0322/03/03

    Keywords

    • IR-46477
    • METIS-215108

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