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An automated microdrop delivery system for neuronal network patterning on microelectrode arrays.

Identifieur interne : 001607 ( Main/Exploration ); précédent : 001606; suivant : 001608

An automated microdrop delivery system for neuronal network patterning on microelectrode arrays.

Auteurs : Elisabetta Macis [Italie] ; Mariateresa Tedesco ; Paolo Massobrio ; Roberto Raiteri ; Sergio Martinoia

Source :

RBID : pubmed:17141327

English descriptors

Abstract

The aim of this work is to present a new technique for defining interconnected sub-populations of cultured neurons on microelectrode arrays (MEAs). An automated microdrop delivery technique allows to design and realize spatially distributed neuronal ensembles by depositing sub-nanoliter volumes of adhesion molecules in which neurons grow and develop. Electrophysiological tests demonstrate that functionally interconnected clusters are obtained and experimental results (both spontaneous and stimulus evoked activity recordings) attesting the feasibility of the proposed approach are presented. By means of the automated system, different and specific architectures can be easily designed and functionally studied. In the presented system the speed of drop deposition is about 30 drops/min; the mean diameter is 147 microm; typical cell survival time is 4-5 weeks. By changing drop size and spacing, investigations about how the network dynamics is related to the network structure can be systematically carried out.

DOI: 10.1016/j.jneumeth.2006.10.015
PubMed: 17141327


Affiliations:


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Le document en format XML

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