{"id":34639,"date":"2021-09-10T11:46:18","date_gmt":"2021-09-10T09:46:18","guid":{"rendered":"https:\/\/foretnature.be\/resume-foret-mail\/la-fibre-de-bois-pour-soigner-les-plaies\/"},"modified":"2021-09-10T11:46:18","modified_gmt":"2021-09-10T09:46:18","slug":"la-fibre-de-bois-pour-soigner-les-plaies","status":"publish","type":"resume-foret-mail","link":"https:\/\/foretnature.be\/en\/resume-foret-mail\/la-fibre-de-bois-pour-soigner-les-plaies\/","title":{"rendered":"La fibre de bois pour soigner les plaies"},"content":{"rendered":"

Les germes qui p\u00e9n\u00e8trent dans les plaies peuvent emp\u00eacher la gu\u00e9rison et provoquer des complications potentiellement mortelles. Dans le cas de plaies complexes, des r\u00e9sistances aux antibiotiques peuvent appara\u00eetre, compliquant d’autant plus la t\u00e2che du corps m\u00e9dical. Des chercheurs de l’EMPA en Suisse, ont mis au point un pansement \u00e0 base de membrane cellulosique pour endiguer les infections avant qu’elles ne puissent s’\u00e9tendre.
\nDes fibres de cellulose dont le diam\u00e8tre est inf\u00e9rieur \u00e0 1 \u03bcm (0,001 mm) sont fil\u00e9es sur plusieurs couches pour former un tissu en trois dimensions. Du polyur\u00e9thane polym\u00e8re est ajout\u00e9 pour augmenter la flexibilit\u00e9 et la stabilit\u00e9 de la membrane.
\nAfin de cr\u00e9er un r\u00e9el effet antibact\u00e9rien, les chercheurs utilisent des peptides qui se lient aux fibres de cellulose et jouent un r\u00f4le bact\u00e9ricide. Les peptides utilis\u00e9s sont plus faciles \u00e0 produire et sont plus stables que de plus grosses prot\u00e9ines, plus sensibles aux conditions chimiques des plaies. Gr\u00e2ce aux membranes de cellulose trait\u00e9es avec les peptides, les \u00e9l\u00e9ments qui constituent les prot\u00e9ines saturent le squelette fibreux.
\nLes exp\u00e9riences de culture de cellules montrent que les membranes de cellulose sont bien tol\u00e9r\u00e9es par la peau humaine. Le pansement v\u00e9g\u00e9tal s’est \u00e9galement av\u00e9r\u00e9 \u00eatre efficace contre les bact\u00e9ries comme les staphylocoques que l’on rencontre fr\u00e9quemment dans les plaies mal cicatris\u00e9es.
\nLes d\u00e9veloppements futurs s’attacheront \u00e0 am\u00e9liorer les effets du pansement de cellulose gr\u00e2ce \u00e0 des solutions de peptides qui pourraient permettre la lib\u00e9ration contr\u00f4l\u00e9e de substances pour am\u00e9liorer la gu\u00e9rison.
\nSix A. (2020). Un pansement bact\u00e9ricide \u00e0 base de cellulose. La For\u00eat n\u00b09 : 9.<\/p>","protected":false},"excerpt":{"rendered":"

Les germes qui p\u00e9n\u00e8trent dans les plaies peuvent emp\u00eacher la gu\u00e9rison et provoquer des complications potentiellement mortelles. Dans le cas de plaies complexes, des r\u00e9sistances aux antibiotiques peuvent appara\u00eetre, compliquant d’autant plus la t\u00e2che du corps m\u00e9dical. Des chercheurs de l’EMPA en Suisse, ont mis au point un pansement \u00e0 base de membrane cellulosique pour […]<\/p>","protected":false},"featured_media":0,"template":"","categories":[50],"acf":[],"yoast_head":"\nLa fibre de bois pour soigner les plaies - For\u00eat.Nature<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/foretnature.be\/en\/resume-foret-mail\/la-fibre-de-bois-pour-soigner-les-plaies\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"La fibre de bois pour soigner les plaies - For\u00eat.Nature\" \/>\n<meta property=\"og:description\" content=\"Les germes qui p\u00e9n\u00e8trent dans les plaies peuvent emp\u00eacher la gu\u00e9rison et provoquer des complications potentiellement mortelles. Dans le cas de plaies complexes, des r\u00e9sistances aux antibiotiques peuvent appara\u00eetre, compliquant d’autant plus la t\u00e2che du corps m\u00e9dical. 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