Nanocomposite flexible pressure sensor for biomedical applications

被引：30
|
作者：
Sepulveda, A. T. [1 ]
Fachin, F. [2 ]
de Villoria, R. Guzman [2 ]
Wardle, B. L. [2 ]
Viana, J. C. [1 ]
Pontes, A. J. [1 ]
Rocha, L. A. [1 ]
机构：
[1] Univ Minho, Inst Polymers & Composites I3N, Campus Azurem, P-4800058 Guimaraes, Portugal
[2] MIT, Dept Aeronaut & Astronaut, Cambridge, MA 02139 USA
来源：
EUROSENSORS XXV | 2011年 / 25卷
关键词：
Flexible pressure sensor; aneurysms; carbon nanotubes; pressure sensor design; polymer nanocomposite;
D O I：
10.1016/j.proeng.2011.12.035
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
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. (C) 2011 Published by Elsevier Ltd.
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页数：4
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