The Water Droplet Contact Line Probed with Multiwalled Carbon Nanotubes at the Air-Water Interface.

ABSTRACT: Within the issue of sessile droplet evaporation, particularly important is the behavior of the triple phase contact line governed by pinning phenomena. We demonstrate how pristine, insoluble multiwalled carbon nanotubes (MWNT) can exhibit ordering phenomena at the air-water interface, contribute to droplet pinning, and are also responsive to the evolving shape of evaporating water droplets at the contact line. The arc-discharge-synthesized MWNTs were of high quality, but they were mixed with graphitic impurity particles in the 10-100 nm size ranges. The MWNTs were ordered into chain structures by capillary interactions at the air-water interface. Moreover, we observed how the chain structures regularly turned perpendicular to the contact line a short time prior to the withdrawal of the str

SUBMITTER: Hyyrylainen E 

PROVIDER: S-EPMC12604613 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature