{"id":73410,"date":"2025-12-13T12:00:00","date_gmt":"2025-12-13T12:00:00","guid":{"rendered":"https:\/\/www.africa-press.net\/senegal\/politique\/impression-3d-avec-trompe-de-moustique-necro-impression"},"modified":"2025-12-14T01:41:02","modified_gmt":"2025-12-14T01:41:02","slug":"impression-3d-avec-trompe-de-moustique-necro-impression","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/impression-3d-avec-trompe-de-moustique-necro-impression","title":{"rendered":"Impression 3D avec Trompe de Moustique N\u00e9cro-Impression"},"content":{"rendered":"<p><span style=\"color: #ff6600\"><strong>Africa-Press &#8211; Senegal. <\/strong><\/span>Une e\u0301quipe de chercheurs en ge\u0301nie biome\u0301canique de l\u2019universite\u0301 McGill, au Canada, inaugure un nouveau concept (et un nouveau mot): la ne\u0301cro-impression. A savoir l\u2019utilisation de l\u2019organe d\u2019un animal mort dans un syste\u0300me d\u2019impression.<\/p>\n<p>L\u2019e\u0301quipe a en effet eu l\u2019ide\u0301e de se servir d\u2019un proboscis de moustique, ce que l\u2019on appelle plus commune\u0301ment la trompe, avec laquelle l\u2019insecte pompe le sang, pour en faire une buse d\u2019impression 3D. Ils peuvent ainsi obtenir un filament de mate\u0301riau imprime\u0301 d\u2019une finesse ine\u0301dite, impossible a\u0300 obtenir avec des buses du commerce ou alors a\u0300 un prix prohibitif.<\/p>\n<p>Le projet a e\u0301te\u0301 pre\u0301sente\u0301 dans la revue Science Advances mi-novembre 2025. Dans l\u2019article, les chercheurs expliquent que les buses en me\u0301tal les plus fines disponibles injectent des couches de 35 microme\u0300tres mais sont vendues 80 dollars l\u2019unite\u0301 (68,35 euros). Et les buses en plastique ne descendent qu\u2019a\u0300 150 microme\u0300tres.<\/p>\n<p><b>Crocs de serpent et dard de scorpion<\/b><\/p>\n<p>L\u2019e\u0301quipe a e\u0301tudie\u0301 d\u2019autres appendices d\u2019autres animaux, comme des crocs de serpents, le dard du conidae (un escargot marin) ou du scorpion. Mais la trompe du moustique a l\u2019avantage d\u2019avoir une rigidite\u0301 e\u0301quivalente a\u0300 celle d\u2019un plastique, et d\u2019e\u0302tre rectiligne pour un diame\u0300tre inte\u0301rieur de 20 a\u0300 25 microme\u0300tres. Le seul mate\u0301riau capable de faire mieux serait le verre, avec des filaments de 1 microme\u0300tre sortant de buses, mais ces dernie\u0300res seraient trop fragiles.<\/p>\n<p>Les tests de pression ont aussi permis d\u2019e\u0301tablir que l\u2019appendice avait une re\u0301sistance me\u0301canique de 708 kilopascals, ce qui reste faible. Une imprimante 3D a donc e\u0301te\u0301 construite de toutes pie\u0300ces. Plus exactement, il s\u2019agit de \u00ab direct ink writing \u00bb, c\u2019est-a\u0300-dire une forme d\u2019impression 3D qui injecte des mate\u0301riaux visqueux en couches si fines que le proce\u0301de\u0301 rappelle l\u2019injection d\u2019une encre. Ici, la trompe de moustique a e\u0301te\u0301 fixe\u0301e a\u0300 l\u2019extre\u0301mite\u0301 d\u2019un cylindre a\u0300 piston ressemblant a\u0300 une seringue.<\/p>\n<p><b>Re\u0301sistance aux variations de tempe\u0301ratures<\/b><\/p>\n<p>Plusieurs structures (nids d\u2019abeille, feuilles d\u2019e\u0301rables) ont e\u0301te\u0301 re\u0301alise\u0301es avec une injection de Pluronic F127, un copolyme\u0300re. Les chercheurs estiment que les re\u0301sultats varient tre\u0300s peu par rapport au mode\u0300le nume\u0301rique: 11% d\u2019erreurs concernant le diame\u0300tre inte\u0301rieur et 16,5% concernant l\u2019e\u0301paisseur d\u2019une paroi imprime\u0301e en 3D. La buse est aussi re\u0301sistante aux variations de tempe\u0301ratures (20 a\u0300 30 degre\u0301s) et de taux d\u2019humidite\u0301 ambiants (30 a\u0300 70%).<\/p>\n<p>L\u2019e\u0301quipe estime donc avoir de\u0301montre\u0301 la faisabilite\u0301 de ce projet d\u2019impression dite biohybride. Se pose maintenant la question du test d\u2019autres organes d\u2019autres insectes, en fonction des besoins d\u2019impression, comme le rostre de la re\u0301duve (un insecte he\u0301mipte\u0300re), la trompe de la punaise de lit, de la mouche tse\u0301-tse\u0301 ou de la mouche des sables, voire du puceron, dont l\u2019organe s\u2019ave\u0300re d\u2019un diame\u0300tre d\u2019un microme\u0300tre.<\/p>\n<p><strong>Pour plus d&rsquo;informations et d&rsquo;analyses sur la <span style=\"color: #ff6600\">Senegal<\/span>, suivez <span style=\"color: #ff6600\">Africa-Press<\/span><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Africa-Press &#8211; Senegal. Une e\u0301quipe de chercheurs en ge\u0301nie biome\u0301canique de l\u2019universite\u0301 McGill, au Canada, inaugure un nouveau concept (et un nouveau mot): la ne\u0301cro-impression. A savoir l\u2019utilisation de l\u2019organe d\u2019un animal mort dans un syste\u0300me d\u2019impression. L\u2019e\u0301quipe a en effet eu l\u2019ide\u0301e de se servir d\u2019un proboscis de moustique, ce que l\u2019on appelle plus [&hellip;]<\/p>\n","protected":false},"author":82,"featured_media":73408,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,10],"tags":[44],"class_list":["post-73410","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-toutes-les-actualites","tag-senegal-2"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.1 (Yoast SEO v27.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Impression 3D avec Trompe de Moustique N\u00e9cro-Impression - Senegal<\/title>\n<meta name=\"description\" content=\"Une e\u0301quipe de chercheurs en ge\u0301nie biome\u0301canique de l\u2019universite\u0301 McGill, au Canada, inaugure un nouveau concept (et un ...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/impression-3d-avec-trompe-de-moustique-necro-impression\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Impression 3D avec Trompe de Moustique N\u00e9cro-Impression\" \/>\n<meta property=\"og:description\" content=\"Une e\u0301quipe de chercheurs en ge\u0301nie biome\u0301canique de l\u2019universite\u0301 McGill, au Canada, inaugure un nouveau concept (et un ...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/impression-3d-avec-trompe-de-moustique-necro-impression\" \/>\n<meta property=\"og:site_name\" content=\"Senegal\" \/>\n<meta property=\"article:published_time\" content=\"2025-12-13T12:00:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-12-14T01:41:02+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/static.africa-press.net\/senegal\/sites\/13\/2025\/12\/sm_1765705171.824718.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"899\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"cfeditorfr\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"cfeditorfr\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/impression-3d-avec-trompe-de-moustique-necro-impression#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/impression-3d-avec-trompe-de-moustique-necro-impression\"},\"author\":{\"name\":\"cfeditorfr\",\"@id\":\"https:\/\/www.africa-press.net\/senegal\/#\/schema\/person\/2b1cf3cd81a31e3cd26889ca66d677f1\"},\"headline\":\"Impression 3D avec Trompe de Moustique N\u00e9cro-Impression\",\"datePublished\":\"2025-12-13T12:00:00+00:00\",\"dateModified\":\"2025-12-14T01:41:02+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/impression-3d-avec-trompe-de-moustique-necro-impression\"},\"wordCount\":557,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/impression-3d-avec-trompe-de-moustique-necro-impression#primaryimage\"},\"thumbnailUrl\":\"https:\/\/static.africa-press.net\/senegal\/sites\/13\/2025\/12\/sm_1765705171.824718.jpg\",\"keywords\":[\"Senegal\"],\"articleSection\":[\"Divers\",\"Toutes les actualit\u00e9s\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/impression-3d-avec-trompe-de-moustique-necro-impression#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/impression-3d-avec-trompe-de-moustique-necro-impression\",\"url\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/impression-3d-avec-trompe-de-moustique-necro-impression\",\"name\":\"Impression 3D avec Trompe de Moustique N\u00e9cro-Impression - 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