Smallest Archimedean Screw: Facet Dynamics and Friction in Multiwalled Nanotubes.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 28795813.
- Also identified by DOI 10.1021/acs.nanolett.7b01718 and PMC identifier 5600185.
- No licence information is recorded for this record.
- Because redistribution is not established, this page shows the abstract only. Follow the links below for the full text.
Abstract
We identify a new material phenomenon, where minute mechanical manipulations induce pronounced global structural reconfigurations in faceted multiwalled nanotubes. This behavior has strong implications on the tribological properties of these systems and may be the key to understand the enhanced interwall friction recently measured for boron-nitride nanotubes with respect to their carbon counterparts. Notably, the fast rotation of helical facets in these systems upon coaxial sliding may serve as a nanoscale Archimedean screw for directional transport of physisorbed molecules.