Researchers at Penn State University found sodium alginate from seaweed can be used to “print” human tissues. Alginate mixed with human stem cells can be 3D-printed into tiny particles that create breathable tissues.
Currently the technology is limited to small strands, however, the researchers are confidant they will be able to create larger tissue patches in the future. The researchers believe these tissues could be used for bone and cartilage surgery , such as knee restoration, cartilage defects, and osteoarthritis.