New research shows that wool may become a safe and eco‑friendly way to fix broken bones.
Why Wool Is Interesting
Wool contains a protein called keratin. Scientists can pull this protein out and turn it into a thin membrane that works like a tiny scaffold for bone cells.
Testing the Wool Scaffold
First, the team grew human bone cells on the keratin membrane in a lab. The cells stuck well and began to act like healthy bone.
Next, they placed the membrane into rats that had holes in their skulls—holes that would not close on their own. Over several weeks, the researchers watched the bone grow back.
Better Than Collagen?
Collagen is the current favorite material for bone repair, but it can be weak and break down too fast. The wool‑based keratin stayed strong, blended with the surrounding tissue, and helped the new bone line up in an organized way.
Although collagen created a little more bone overall, the bone made with keratin looked more like natural, healthy bone because its fibers were well‑aligned.
Why This Matters
Wool is a waste product from farms, so using it is both cheap and renewable. If the keratin scaffold works in people, doctors could have a greener option for fixing broken jaws, teeth, or other bones.
Dr. Sherif Elsharkawy says the animal results move the idea from the lab bench to a real medical tool that could help patients soon.