iit-m-makes-sutures-with-nanofiber-yarns-th

  • A team of researchers at IIT Madras is ready with a prototype of suture thread made of nanofiber yarns that is bio-absorbable and can deliver a higher load of antibiotics and/or therapeutics at the site itself.
  • The suture material uses nanofibers woven as yarn using certain specific techniques, and the strength can be varied depending on the target tissue (skin, muscle, cartilage).
  • Each strand has a good tensile strength, besides degrading rapidly and mimics the collagen fibrils of body tissues.
  • Several innovations globally in suture material have advanced infection control and achieved in some cases, better recovery among patients, even as other options such as staples, glues and strips have become available.
  • Nanofiber yarns are thread-like structures formed by twisting together hundreds of nanofibers. The way the nanofibers mimicked the collagen fibril sparked the idea in a lab that primarily works on scaffold-based tissue engineering to create thread like structures by twisting nanofibers together using custom-made machinery.
  • Several experiments were done to prove its compatibility, mechanical strength, stem cell interaction, immune responses, and antibacterial property, and they were compatible with prescribed norms in surgical procedure.