Modification of a neuronal network direction using stepwise photo-thermal etching of an agarose architecture

<p>Abstract</p> <p>Control over spatial distribution of individual neurons and the pattern of neural network provides an important tool for studying information processing pathways during neural network formation. Moreover, the knowledge of the direction of synaptic connections bet...

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Main Authors: Jimbo Yasuhiko, Moriguchi Hiroyuki, Sugio Yoshihiro, Suzuki Ikurou, Yasuda Kenji
Format: Article
Language:English
Published: BMC 2004-07-01
Series:Journal of Nanobiotechnology
Online Access:http://www.jnanobiotechnology.com/content/2/1/7
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author Jimbo Yasuhiko
Moriguchi Hiroyuki
Sugio Yoshihiro
Suzuki Ikurou
Yasuda Kenji
author_facet Jimbo Yasuhiko
Moriguchi Hiroyuki
Sugio Yoshihiro
Suzuki Ikurou
Yasuda Kenji
author_sort Jimbo Yasuhiko
collection DOAJ
description <p>Abstract</p> <p>Control over spatial distribution of individual neurons and the pattern of neural network provides an important tool for studying information processing pathways during neural network formation. Moreover, the knowledge of the direction of synaptic connections between cells in each neural network can provide detailed information on the relationship between the forward and feedback signaling. We have developed a method for topographical control of the direction of synaptic connections within a living neuronal network using a new type of individual-cell-based on-chip cell-cultivation system with an agarose microchamber array (AMCA). The advantages of this system include the possibility to control positions and number of cultured cells as well as flexible control of the direction of elongation of axons through stepwise melting of narrow grooves. Such micrometer-order microchannels are obtained by photo-thermal etching of agarose where a portion of the gel is melted with a 1064-nm infrared laser beam. Using this system, we created neural network from individual Rat hippocampal cells. We were able to control elongation of individual axons during cultivation (from cells contained within the AMCA) by non-destructive stepwise photo-thermal etching. We have demonstrated the potential of our on-chip AMCA cell cultivation system for the controlled development of individual cell-based neural networks.</p>
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spelling doaj.art-a01eef5d95b3475e900a3d17723a19712022-12-22T02:20:50ZengBMCJournal of Nanobiotechnology1477-31552004-07-0121710.1186/1477-3155-2-7Modification of a neuronal network direction using stepwise photo-thermal etching of an agarose architectureJimbo YasuhikoMoriguchi HiroyukiSugio YoshihiroSuzuki IkurouYasuda Kenji<p>Abstract</p> <p>Control over spatial distribution of individual neurons and the pattern of neural network provides an important tool for studying information processing pathways during neural network formation. Moreover, the knowledge of the direction of synaptic connections between cells in each neural network can provide detailed information on the relationship between the forward and feedback signaling. We have developed a method for topographical control of the direction of synaptic connections within a living neuronal network using a new type of individual-cell-based on-chip cell-cultivation system with an agarose microchamber array (AMCA). The advantages of this system include the possibility to control positions and number of cultured cells as well as flexible control of the direction of elongation of axons through stepwise melting of narrow grooves. Such micrometer-order microchannels are obtained by photo-thermal etching of agarose where a portion of the gel is melted with a 1064-nm infrared laser beam. Using this system, we created neural network from individual Rat hippocampal cells. We were able to control elongation of individual axons during cultivation (from cells contained within the AMCA) by non-destructive stepwise photo-thermal etching. We have demonstrated the potential of our on-chip AMCA cell cultivation system for the controlled development of individual cell-based neural networks.</p>http://www.jnanobiotechnology.com/content/2/1/7
spellingShingle Jimbo Yasuhiko
Moriguchi Hiroyuki
Sugio Yoshihiro
Suzuki Ikurou
Yasuda Kenji
Modification of a neuronal network direction using stepwise photo-thermal etching of an agarose architecture
Journal of Nanobiotechnology
title Modification of a neuronal network direction using stepwise photo-thermal etching of an agarose architecture
title_full Modification of a neuronal network direction using stepwise photo-thermal etching of an agarose architecture
title_fullStr Modification of a neuronal network direction using stepwise photo-thermal etching of an agarose architecture
title_full_unstemmed Modification of a neuronal network direction using stepwise photo-thermal etching of an agarose architecture
title_short Modification of a neuronal network direction using stepwise photo-thermal etching of an agarose architecture
title_sort modification of a neuronal network direction using stepwise photo thermal etching of an agarose architecture
url http://www.jnanobiotechnology.com/content/2/1/7
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AT sugioyoshihiro modificationofaneuronalnetworkdirectionusingstepwisephotothermaletchingofanagarosearchitecture
AT suzukiikurou modificationofaneuronalnetworkdirectionusingstepwisephotothermaletchingofanagarosearchitecture
AT yasudakenji modificationofaneuronalnetworkdirectionusingstepwisephotothermaletchingofanagarosearchitecture