Imagine a microscopic locomotive moving back and forth along a track, propelling itself without any external force. At the molecular level, this concept forms the foundation of molecular motors -- ...

The structure of semi-crystalline polymers largely depends on how strongly their molecular chains are entangled. Following numerous experiments, researchers developed a new model to predict the ...

Imagine a knot so small that it can’t be seen with the naked eye. Then think even smaller. Chemists have tied together just 54 atoms to form the smallest molecular knot yet. Described January 2 in ...

Researchers used a light-driven molecular motor to wind two molecular strands into an interlocked ring structure called a catenane, without forming chemical bonds. (Nanowerk News) Threads or ropes can ...

Fast-scanning atomic force microscopy imaging of the molecule at two different time points shows positional shifts along the polymer chain on the left. On the right, the molecular structure of PEG ...