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Label-free detection of ATP release from living astrocytes with high temporal resolution using carbon nanotube network.

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Label-free detection of ATP release from living astrocytes with high temporal resolution using carbon nanotube network.

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dc.contributor.author Huang, Yinxi.
dc.contributor.author Sudibya, Herry Gunadi.
dc.contributor.author Fu, Dongliang.
dc.contributor.author Xue, Renhao.
dc.contributor.author Dong, Xiaochen.
dc.contributor.author Li, Lain-Jong.
dc.contributor.author Chen, Peng.
dc.date.accessioned 2012-02-28T08:14:30Z
dc.date.available 2012-02-28T08:14:30Z
dc.date.copyright 2008
dc.date.issued 2012-02-28
dc.identifier.citation Huang, Y., Sudibya, H. G., Fu, D., Xue, R., Dong, X., Li, L. J. & Chen, P. (2009) Label free detection of ATP release from living astrocytes with high temporal resolution using carbon nanotube network. Biosensors & Bioelectronics, 24, 2716–2720.
dc.identifier.uri http://hdl.handle.net/10220/7546
dc.description.abstract Owing to its unique combination of electrical, physiochemical, and one-dimension structural properties, single-walled carbon nanotube (SWNT) has recently emerged as a novel nanoelectronic biosensor for biomolecular detection with extraordinary sensitivity and simple detection scheme. All the realizations so far, however, are limited to static in vitro measurement. Dynamic detection of biomolecule release from living cells which may occur in millisecond timescale has yet to be demonstrated. In the present work, SWNT network was utilized to directly interface with living neuroglial astrocytes and label-freely detect the triggered release of adenosine triphosphate (ATP) from these cells with high temporal resolution. The secreted ATP molecules diffuse into the narrow interface gap between the SWNT-net and the astrocyte, and interact with the nanotubes. Highly charged ATP molecules electrostatically modulate the SWNT conductance leading to measurable current response. This technique provides a novel platform to study ATP release and signaling which play important roles in astrocyte–neuron crosstalk and other essential cellular functions.
dc.language.iso en
dc.relation.ispartofseries Biosensors and bioelectronics
dc.rights © 2008 Elsevier. This is the author created version of a work that has been peer reviewed and accepted for publication by Biosensors and Bioelectronics, Elsevier. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [DOI: http://dx.doi.org/10.1016/j.bios.2008.12.006]
dc.subject DRNTU::Engineering::Materials::Biomaterials.
dc.title Label-free detection of ATP release from living astrocytes with high temporal resolution using carbon nanotube network.
dc.type Journal Article
dc.contributor.school School of Materials Science and Engineering
dc.identifier.doi http://dx.doi.org/10.1016/j.bios.2008.12.006
dc.description.version Accepted version
dc.contributor.organization School of Chemical and Biomedical Engineering

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