IIT-M team develops sutures with nanofiber yarns
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A team of researchers at IIT Madras is ready with a prototype of suture thread made of nanofiber yarns that are 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), explains Rama S. Verma of the Stem Cell and Molecular Biology laboratory, Department of Biotechnology, IIT Madras.

Each strand has good tensile strength, besides degrading rapidly and mimics the collagen fibrils of body tissues, he adds.

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.

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.

"The team also loaded the fibres to deliver drugs at the site, Prof. Verma says, adding that it might be more suitable for internal sutures and on soft tissues. The bio absorbability aspect makes sure that the sutures do not have to be removed.

Source: https://www.thehindu.com/sci-tech/technology/iit-m-team-develops-sutures-with-nanofiber-yarns/article32746959.ece
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