Skoltech scientists modeled the behavior of nanobubbles showing in van der Waals heterostructures and the behavior of drugs trapped inside the bubbles. Sooner or later, the new mannequin will help obtain equations of state for substances in nano-volumes, opening up new alternatives for the extraction of hydrocarbons from the rock with large quantities of micro- and nanopores. The results of the research had been featured in the Journal of Chemical Physics.
The van der Waals nanostructures hold a lot promise for the study of tiniest samples with volumes from 1 cubic micron down to a number of cubic nanometers. These atomically thin layers of two-dimensional supplies, corresponding to graphene, hexagonal boron nitride (hBN), and dichalcogenides of transition metals, are held collectively by weak van der Waals interaction only.
Inserting a pattern between the layers separates the higher and bottom layers, making the higher layer carry to form a nanobubble. The ensuing structure will then change into available for transmission electron and atomic power microscopy, providing an insight into the structure of the substance contained in the bubble.
The properties exhibited by substances inside the van der Waals nanobubbles are fairly unusual.
For instance, water trapped inside a nanobubble shows a tenfold lower in its dielectric fixed and etches the diamond surface, something it will never do under regular situations. Argon, which typically exists in liquid type when in giant quantities, can turn into solid at the same strain if trapped inside very small nanobubbles with a radius of lower than 50 nanometers.