Controlling Microdroplet Inner Rotation by Parallel Carrier Flow of Sesame and Silicone Oils.

ABSTRACT: We developed a method for passively controlling microdroplet rotation, including interior rotation, using a parallel flow comprising silicone and sesame oils. This device has a simple 2D structure with a straight channel and T-junctions fabricated from polydimethylsiloxane. A microdroplet that forms upstream moves into the sesame oil. Then, the largest flow velocity at the interface of the two oil layers applies a rotational force to the microdroplet. A microdroplet in the lower oil rotates clockwise while that in the upper oil rotates anti-clockwise. The rotational direction was controlled by a simple combination of sesame and silicone oils. Droplet interior flow was visualized by tracking microbeads inside the microdroplets. This study will contribute to the efficient creation of chiral

SUBMITTER: Yoshimura H 

PROVIDER: S-EPMC8781333 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature