Scientists in China have made a new bionic surgical suture. What inspired this invention?

654381October 5th, the authoritative magazine Nanocommunication published a new bionic surgical suture developed by Yu Shuhong, an academician of China, which is a kind of lotus fiber microstructure and mechanical properties based on the natural phenomenon of broken silk. It is a water-based gel, which can be used to spin lotus fiber for surgical suture. Because this hydrogel has high strength and toughness, certain hydrophilicity and biocompatibility, and is similar to the elasticity of human skin, it is selected as the best substitute material.

First, the new bionic surgical suture This latest bionic surgical suture is a special kind of hydrogel fiber with bionic spiral structure, which can play a certain role in buffering and absorbing energy in the deformed parts of human wounds. The most wonderful thing is that it can deform synchronously with human tissue to avoid the secondary separation of the wound. Compared with traditional cotton thread and polymer thread, hydrogel fiber suture has the characteristics of high compatibility, high water content, low irritation and low friction resistance. To some extent, it can protect the recovery of our damaged tissues and promote the healing of wounds. This new bionic surgical suture extends upward in a bionic spiral shape, which is as delicate as a lotus thread, but it is extremely plastic and has excellent effect on wound suture.

Second,? Break off the relationship? This natural phenomenon makes scientists deeply study whether lotus fiber can replace traditional polymeric cotton thread in microstructure and mechanical properties. The three-dimensional nanofiber network of this bacterial cellulose hydrogel has a high strength of more than 900 kPa, and its unique cellulose nanofiber bionic network has strong mechanical properties of pulling up and not rebounding, which can play a certain role in our high-end surgical suture field. At the same time, nanofiber hydrogel has a porous structure, which can better absorb antibiotics and anti-inflammatory drugs on the skin surface and promote wound healing. This bionic design will have great application potential in the future surgical suture field.

Third, it is widely used. At present, the patent has been passed, examined and granted certain authorization. I believe that the future materials will show their unique application potential, and high-quality biological and mechanical properties can bring an innovation in the field of surgical suture. For our patients, it can further reduce the inflammatory stimulation to the wound, play a very good role in promoting wound healing, and try to improve the aesthetics of the wound to the highest. I think this is the biggest benefit brought by this technology.