Continuous Directional Water Delivery on the 3D-Printed Arrowhead Microstructure Array.

ABSTRACT: Unidirectional transport is attracting increasing attention in the field of microfluidics, because it does not require an external energy supply. However, most of the current self-driving structures are still plagued with persistent problems that restrict their practical applications. These include low transport velocity, short transport distance, and complex structure. This work reports the design of a new arrowhead microstructure array, on which liquid transport can reach speeds of 23 mm/s and the ratio of transport length to channel width (L/R) can reach up to approximately 40. This structure drives liquid through a unique arrow conformation, which can induce capillary force and arrest the reverse motion of the liquid simultaneously. By means of theory, simulation, and experiment, we ha

SUBMITTER: Liang L 

PROVIDER: S-EPMC6480226 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature