Using the quick search there are shown up to three reports about ultrahigh tensile strength:
Since the discovery of carbon nanotubes in the early 1990s, nanotubes and nanowires have been the focus of much scientific attention. Aside from carbon, nanotubes have since been made from various oth...
Biowissenschaften Chemie |Using the fulltext-search for the word ultrahigh tensile strength you can set up serveral searching-options > choose search options