Science, Space and Technology News 2024
A new 3D bioprinting method using fat tissue enables the printing of layered living skin and hair follicles, promising improved outcomes for reconstructive surgery and hair growth treatments. This patented technology, showcasing successful tests in rats, could revolutionize approaches to healing skin injuries and enhancing cosmetic procedures.
While scientists have previously 3D bioprinted thin layers of skin, Ozbolat and his team are the first to intraoperatively print a full, living system of multiple skin layers, including the bottom-most layer or hypodermis. Intraoperatively refers to the ability to print the tissue during surgery, meaning the approach may be used to more immediately and seamlessly repair damaged skin, the researchers said.
Ravnic’s team also obtained stem cells, which have the potential to mature into several different cell types if provided the correct environment, from the adipose tissue to make another bioink component. Each component was loaded into one of three compartments in the bioprinter. The third compartment was filled with a clotting solution that helps the other components properly bind onto the injured site.
“In our experiments, the fat cells may have altered the extracellular matrix to be more supportive for downgrowth formation,” Ozbolat said. “We are working to advance this, to mature the hair follicles with controlled density, directionality and growth.”
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