Taking clues from spongy toddler toys that can absorb water and inflate to bigger sizes, scientists at Mayo Clinical Research Centre, Rochester, Minnesota, United States have developed biodegradable<unk>  grafts that, when surgically placed in damaged vertebrae, intended to grow such that it is just the right size and shape to fix the spinal column. For obvious reasons, any problem with the backbone of a vertebrate is often considered a potential disability which can limit a person's ability to manoeuvre their way around their surroundings, cause a lot of pain and be responsible for mental distress. This has been researched upon by Lichun Lu and Xifeng Liu, scientists from Mayo Clinic's college of medicine, who have developed a novel spinal graft that, once surgically placed in the body, will grow to be just the right size and shape to fix the spinal column. They presented their work at the 251st National Meeting & Exposition of the non-profit organization American Chemical Society (ACS).
Polymer sponge
Gauze sponge
Fibrin glue
Ligature 
Surgical staple
Surgical mesh
Surgical tape
Chemical peel