It is understood that a research team at the Aikenhead Medical Discovery Center in St. Vincent Hospital, Melbourne, Australia, successfully tested its innovative “bio-penâ€. This 3D bioprint pen filled with stem cell hydrogel inks allows doctors to easily print live cells onto injured muscles, bones, tendons and other tissues. In the test, it was used to repair the knee of a sheep.
The body of the device has a lightweight and ergonomic structure and is said to be made of medical plastic and titanium. Its titanium nozzle is capable of extruding bio-ink containing stem cells and a hydrogel made of gelatin and hyaluronic acid. After extrusion, a low power UV will cure the mixture.
In a recent test, the bio-ink contained on the pen consisted of stem cells of sick sheep and a biocompatible hydrogel material. Doctors say the hydrogel not only allows cells to be printed, but also allows cells to survive and replicate.
Successful testing on sheep has provided a positive signal for the future of this bioprinting technology, and the research team hopes that their equipment will soon be used to repair cartilage damage that is currently difficult to treat. The biggest beneficiaries of bio-pens may be young people and athletes because they can heal the injuries they suffer, preventing or at least delaying osteoarthritis, one of the most common chronic joint diseases.
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