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Portable device integrating an ultrasensitive mechanical crack-based sensor for the wireless monitoring of cardiac activity

Abstract : Flexible crack-based strain sensors showing a maximum gauge factor of 30,000 at 0.2% strain level are elaborated by means of Atomic Layer Deposition and e-beam evaporation. It is shown that the mechanosensitivity can be drastically boosted by encapsulating the cracks with a photoresist layer. A non-invasive portable device integrating this ultrasensitive flexible transducer is then developed to monitor the cardiac activity at rest. The presented prototype integrates a Bluetooth Low Energy wireless interface for realtime communication with an Android mobile device.
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https://hal.archives-ouvertes.fr/hal-03344474
Contributor : Etienne Puyoo Connect in order to contact the contributor
Submitted on : Wednesday, September 15, 2021 - 9:52:01 AM
Last modification on : Friday, September 17, 2021 - 3:36:06 AM

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Nicolas de Pinho Ferreira, Etienne Puyoo, Bertrand Massot, Solène Brottet, Christophe Malhaire. Portable device integrating an ultrasensitive mechanical crack-based sensor for the wireless monitoring of cardiac activity. 2020 Symposium on Design, Test, Integration & Packaging of MEMS and MOEMS (DTIP), Jun 2020, Lyon, France. pp.1-5, ⟨10.1109/DTIP51112.2020.9139156⟩. ⟨hal-03344474⟩

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