Transport and trapping of nanosheets via hydrodynamic forces and curvature-induced capillary quadrupolar interactions.

ABSTRACT:

Hypothesis

The manipulation of nanosheets on a fluid-fluid interface remains a significant challenge. At this interface, hydrodynamic forces can be used for long-range transport (>1× capillary length) but are difficult to utilize for accurate and repeatable positioning. While capillary multipole interactions have been used for particle trapping, how these interactions manifest on large but thin objects, i.e., nanosheets, remains an open question. Hence, we posit hydrodynamic forces in conjunction with capillary multipole interactions can be used for nanosheet transport and trapping.

Experiments

We designed and characterized a fluidic device for transporting and trapping nanosheets on the water-air interface. Analytical models were compared against optical measurements of the

SUBMITTER: Lee TJ 

PROVIDER: S-EPMC6217804 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature