Shell-based bio-glue stops bleeding in 15 seconds

Glue can close a wound in 15-30 seconds, which is many times faster than similar products. Tests on rats and pigs

showed that the glue remained at the wound site infor several weeks before being slowly broken down by the body as the tissue heals. However, if necessary, it can be removed earlier by using a special solution. Experiments also showed that the glue did not cause severe inflammation around the healing area.

Scientists were inspired to create glue by nature.It is known that shells are firmly attached to stones, ship hulls, and hard, wet and dirty surfaces. To attach themselves to them, shells secrete two different liquids. The first is an oil that repels and displaces water, allowing the second liquid, a protein-based adhesive, to adhere to the cleaned slate.

To mimic natural material, MIT scientistsused previously developed medical adhesives. In 2019, scientists created a double-sided tape that can replace stitches when closing a wound or incision in an organ or skin. This time, they froze sheets of their material, pulverized it into tiny particles, and then suspended it in silicone oil.

Experiments have shown that glue works better than existing hemostats. They stop blood flow even in those experimental animals that have been given strong thrombolytics.

The study was published in the journalNature Biomedical Engineering.

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