Nanocomposite Flexible Pressure Sensor for Biomedical Applications

A new approach for the fabrication of flexible pressure sensors based on aligned carbon nanotubes (A-CNTs) is described in this paper. The technology is suitable for blood pressure sensors that can be attached to a stent-graft and deployed during an endovascular aneurysm repair (EVAR) procedure. Giv...

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Bibliographic Details
Published inProcedia engineering Vol. 25; pp. 140 - 143
Main Authors Sepúlveda, A.T., Fachin, F., Villoria, R. Guzmán de, Wardle, B.L., Viana, J.C., Pontes, A.J., Rocha, L.A.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 2011
Subjects
aneurysms
carbon nanotubes
Flexible pressure sensor
polymer nanocomposite
pressure sensor design
Flexible pressure sensor
carbon nanotubes
polymer nanocomposite
pressure sensor design
aneurysms
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Summary:A new approach for the fabrication of flexible pressure sensors based on aligned carbon nanotubes (A-CNTs) is described in this paper. The technology is suitable for blood pressure sensors that can be attached to a stent-graft and deployed during an endovascular aneurysm repair (EVAR) procedure. Given the specifications of EVAR, the device should be foldable (extremely flexible) and characterized by a (very small) profile that integrates with the stent-graft cross section. A-CNTs embedded in a flexible substrate of polydimethylsiloxane (PDMS), a transparent, nontoxic and biocompatible silicone elastomer, are used to fabricate elements of the capacitive sensors. Fabricated prototypes validate our approach and show that CNTs/PDMS layered composites can be used to create highly flexible pressure sensors.
ISSN:1877-7058
1877-7058
DOI:10.1016/j.proeng.2011.12.035