Producing energy while chewing

Peer recognition and visibility on three continents

March 23, 2015
Aidin Delnavaz, researcher, with a chin strap prototype.
Producing energy while chewing – this ingenious idea, dreamed up by Jérémie Voix and Aidin Delnavaz, researchers in the Sonomax-ETS Industrial Research Chair in In-Ear Technologies (CRITIAS), has just gained recognition from Smart Materials and Structures as an innovative project with strong scientific impact.

“Flexible piezoelectric energy harvesting from jaw movements,” the article in which the researchers describe their project, was selected by this prestigious science journal as one of the highlights of 2014. This is tremendous recognition from the smart materials and structures research community.

In addition to this accolade, the ÉTS researchers’ project has also sparked great media interest in the United States, Great Britain, France, Korea, Iran, and India from such prominent news organizations as Le Monde, BBC, Newsweek, US Official News to mention only a few. Closer to home, the CBC French network - both radio and television – has taken a keen interest in this innovation.

Clearly, the research project has triggered strong and widespread interest – and has people talking on three continents!

About the project


The project designed by Jérémie Voix and Aidin Delnavaz allows for the havesting of energy from jaw movements using piezoelectric fibre. One of the features of this particular fibre is its ability to generate electrical charge when stretched.

Eventually, the fibre will generate enough energy to power a cochlear implant (a hearing aid) or even a head-mounted device (of the kind first responders wear at work).

More concretely, it will be a benefit for hearing-aid users who regularly have to replace their batteries – a task that requires considerable dexterity and generates cost. It will also have a positive impact on the environment by reducing the number of batteries that are scrapped.

This project is truly a wonderful example of the engineering ingenuity that can be found at École de technologie supérieure (ÉTS): building devices that benefit the community without harming the environment.

To learn more:
Sonomax-ETS Industrial Research Chair in In-Ear Technologies (CRITIAS)



For information
Chantal Crevier
Service des communications - ÉTS
514 396-8800, ext. 7893

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