A surgical suture is medical device used to hold tissue together in the body. Traditional examples include metal staples and stitches. Soft matter provides an exciting opportunity to develop new high performance sutures. One example is given in A_Biodegradable_and_Biocompatible_Gecko-Inspired_Tissue_Adhesive.
Apart from the development of new types of sutures from soft materials, sutures themselves have to function on soft materials, namely body tissue. Hence they need to take into account soft material properties so that the tissues remain bound, even under strain.
 Surgical Sutures from Wikipedia