{"id":2988,"date":"2014-09-17T15:53:56","date_gmt":"2014-09-17T20:53:56","guid":{"rendered":"http:\/\/sciencemediacentre.ca\/site\/?p=2988"},"modified":"2014-09-17T15:56:09","modified_gmt":"2014-09-17T20:56:09","slug":"chin-strap-device-generates-power-from-chewing","status":"publish","type":"post","link":"http:\/\/sciencemediacentre.ca\/site\/chin-strap-device-generates-power-from-chewing\/","title":{"rendered":"Chin strap device generates power from chewing<img src=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/01\/canada_flag_icon_small.gif\">"},"content":{"rendered":"<div id=\"attachment_2989\" style=\"width: 410px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-2989\" class=\"size-full wp-image-2989 aligncenter alignnone\" src=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/09\/Piezo_chin_strap.jpg\" alt=\"Aidin Delnavaz demonstrates a new chin strap device that can harvest the energy of talking or chewing to create electricity. Photo credit: Aidin Delnavaz\/J\u00e9r\u00e9mie Voix\" width=\"400\" height=\"336\" srcset=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/09\/Piezo_chin_strap.jpg 400w, http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/09\/Piezo_chin_strap-300x252.jpg 300w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><p id=\"caption-attachment-2989\" class=\"wp-caption-text\">Aidin Delnavaz demonstrates a new chin strap device that can harvest the energy of talking or chewing to create electricity. Photo credit: Aidin Delnavaz\/J\u00e9r\u00e9mie Voix<\/p><\/div>\n<p><span style=\"color: #000000;\">Researchers have created a device capable of harvesting the mechanical energy generated by chewing or talking.<\/span><\/p>\n<p><span style=\"color: #000000;\">The device works via the piezoelectic effect, in which certain materials generate electricity when stretched or squeezed. In this case, the chin strap contains a strip of piezoelectric material made of electrodes that are embedded into plastic. <\/span><\/p>\n<p><span style=\"color: #000000;\">Chewing gum for 60 seconds is enough to generate 18 microwatts of power. While this amount of power is too small for most applications, if the power is multiplied by adding more strips, the device could be used to run low-power electronic devices such as electronic hearing protectors, hearing aids and communication earpieces.<\/span><\/p>\n<p><span style=\"text-decoration: underline;\"><a href=\"http:\/\/iopscience.iop.org\/0964-1726\/23\/10\/105020\" target=\"_blank\">Original research paper<\/a><\/span>\u00a0published in\u00a0<em>Smart Materials and Structures\u00a0<\/em>on\u00a0<strong>September 17, 2014<\/strong>.<\/p>\n<p><span style=\"text-decoration: underline;\"><em><strong>Names and affiliations of selected\u00a0authors<\/strong><\/em><\/span><\/p>\n<h4><span style=\"color: #000000;\">Aidin Delnavaz, Mechanical Engineering Department, E\u0301cole de technologie superieure, Montreal<\/span><\/h4>\n<h4><span style=\"color: #000000;\">J\u00e9r\u00e9mie Voix, Mechanical Engineering Department, E\u0301cole de technologie superieure, Montreal<\/span><\/h4>\n","protected":false},"excerpt":{"rendered":"<p>Researchers have created a device capable of harvesting the mechanical energy generated by chewing or talking. The device works via the piezoelectic effect, in which certain materials generate electricity when stretched or squeezed. In this case, the chin strap contains a strip of piezoelectric material made of electrodes that are embedded into plastic. Chewing gum [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2989,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[25],"tags":[2163,2165,2162,2164,2166],"class_list":["post-2988","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-paper-of-interest","tag-electricity","tag-hearing-aids","tag-mechanical-engineering","tag-piezoelectric-effect","tag-portable-power"],"jetpack_featured_media_url":"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/09\/Piezo_chin_strap.jpg","jetpack_shortlink":"https:\/\/wp.me\/p4DqbN-Mc","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts\/2988","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/comments?post=2988"}],"version-history":[{"count":3,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts\/2988\/revisions"}],"predecessor-version":[{"id":2992,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts\/2988\/revisions\/2992"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/media\/2989"}],"wp:attachment":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/media?parent=2988"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/categories?post=2988"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/tags?post=2988"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}