Researchers have developed the most precise way to build polyrotaxanes by using two artificial molecular pumps to install rings onto each end of a polymer string. Northwestern University researchers ...

Sheep intestine launched the technological advancements of tennis strings. But that was 145 years ago and the tech making strings has advanced well beyond the sheep intestine natural gut first ...

Proceedings of the National Academy of Sciences of the United States of America, Vol. 106, No. 42 (Oct. 20, 2009), pp. 17644-17649 (6 pages) The "beads-on-a-string" model for folding of polymers is a ...

Polyrotaxanes show promise in soft materials, such as scratch-resistant coatings and actuators Pump allows researchers to control precisely how many rings thread onto the chain, which was previously ...