{"id":44351,"date":"2023-05-15T20:07:10","date_gmt":"2023-05-15T20:07:10","guid":{"rendered":"https:\/\/www.africa-press.net\/senegal\/politique\/biomimetisme-le-puceron-pousse-les-chercheurs-a-revolutionner-le-catheter"},"modified":"2023-05-15T21:40:39","modified_gmt":"2023-05-15T21:40:39","slug":"biomimetisme-le-puceron-pousse-les-chercheurs-a-revolutionner-le-catheter","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/biomimetisme-le-puceron-pousse-les-chercheurs-a-revolutionner-le-catheter","title":{"rendered":"Biomim\u00e9tisme\u00a0: le puceron pousse les chercheurs \u00e0 r\u00e9volutionner le cath\u00e9ter"},"content":{"rendered":"

Africa-Press – Senegal. <\/strong><\/span>Cet article est issu du magazine Les Indispensables de Sciences et Avenir n\u00b0213 date\u0301 avril\/ juin 2023.<\/p>\n

Le puceron deviendra-t-il un mode\u0300le pour les chirurgiens ? Pourquoi pas, re\u0301pondent les chercheurs en biologie qui explorent aujourd\u2019hui les proprie\u0301te\u0301s biome\u0301caniques de l\u2019appareil buccal gra\u0302ce auquel l\u2019insecte se nourrit en forant des trous minuscules dans les ve\u0301ge\u0301taux.<\/p>\n

\u201cLe stylet du puceron est capable de se diriger dans toutes les directions\u201d<\/b><\/p>\n

\u201cA\u0300 la diffe\u0301rence de celui du moustique ou de la punaise, le stylet du puceron est capable de se diriger dans toutes les directions et me\u0302me de se plier a\u0300 90\u00b0. Prote\u0301ge\u0301 par un rostre musculeux et re\u0301tractable, il est a\u0300 la fois souple et rigide\u201d, pre\u0301cise Yvan Rahbe\u0301, chercheur a\u0300 l\u2019Inrae. Autant de caracte\u0301ristiques qui seraient ide\u0301ales pour les cathe\u0301ters utilise\u0301s en chirurgie cardiovasculaire.<\/p>\n

Ne pas activer le syste\u0300me immunitaire<\/b><\/p>\n

Introduits par les arte\u0300res des jambes, les cathe\u0301ters doivent en effet se frayer un chemin dans le syste\u0300me arte\u0301riel pour atteindre les reins, le c\u0153ur ou le cerveau. \u201cLa rigidite\u0301 du stylet du puceron vient de la chitine, e\u0301galement pre\u0301sente chez les crustace\u0301s, et qui entre de\u0301ja\u0300 dans la composition de fils chirurgicaux car elle a l\u2019avantage de ne pas activer le syste\u0300me immunitaire, explique Yvan Rahbe\u0301. Nous sommes en train d\u2019identifier la dizaine de prote\u0301ines qui se fixent sur elle et lui confe\u0300rent sa souplesse.\u201d<\/p>\n

Pour plus d’informations et d’analyses sur la Senegal<\/a>, suivez Africa-Press<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Africa-Press – Senegal. Cet article est issu du magazine Les Indispensables de Sciences et Avenir n\u00b0213 date\u0301 avril\/ juin 2023. Le puceron deviendra-t-il un mode\u0300le pour les chirurgiens ? Pourquoi pas, re\u0301pondent les chercheurs en biologie qui explorent aujourd\u2019hui les proprie\u0301te\u0301s biome\u0301caniques de l\u2019appareil buccal gra\u0302ce auquel l\u2019insecte se nourrit en forant des trous minuscules […]<\/p>\n","protected":false},"author":82,"featured_media":44350,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,10],"tags":[43,47,44],"class_list":["post-44351","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-toutes-les-actualites","tag-africa-press-2","tag-africa-press-senegal","tag-senegal-2"],"yoast_head":"\nBiomim\u00e9tisme\u00a0: le puceron pousse les chercheurs \u00e0 r\u00e9volutionner le cath\u00e9ter - Senegal<\/title>\n<meta name=\"description\" content=\"Cet article est issu du magazine Les Indispensables de Sciences et Avenir n\u00b0213 date\u0301 avril\/ juin 2023. 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