Bio dressing invented to accelerate the healing of broken bones

The researchers created a bandage thatcaptures and holds healing molecules at the site of a bone fracture, accelerating the natural healing process of tissues and reducing the time of complete recovery to three weeks.

In 2014, scientists discovered that the biomolecule adenosine plays an important role in stimulating bone growth.When a bone is injured or fractured, the body naturally fills the area around the injury with these molecules, but they don't stay in one place for long and break down quickly.In addition to participating in the processbone healing, adenosine performs many other important functions in the body, so only a local increase in its level is permissible.

To solve the problem, the biomedical team fromDuke University has developed a biomaterial dressing coated with borate molecules. When she wraps a broken bone, it captures and retains adenosine near the site of damage. The second version of the dressing they additionally covered with adenosine, which was gradually released. Since in both cases the healing molecules gradually decomposed, they did not disturb the natural balance and did not cause side effects.

Laboratory tests in mice showed that fora week, each type of processed dressings significantly improved the process of splicing. Three weeks later, healing was observed in all experimental subjects, but in those using adenosine bio-dressings, a better bone formation was observed, with a large volume of tissue and better vascularization.

Researchers say dressings canmade of biodegradable material for quick healing of fractures, or create a permanent option in which new adenosine can be administered to treat repeated injuries associated with aging or osteoporosis. In addition, they plan to develop a gel for external use.

Recently, we also reported on the creation of a smart bionic pacemaker that makes the heart beat with a natural rhythm, increasing the efficiency of pumping blood.

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