Ferrofluid Microdroplet Splitting for Population-Based Microfluidics and Interfacial Tensiometry.

ABSTRACT: Ferrofluids exhibit a unique combination of liquid properties and strong magnetic response, which leads to a rich variety of interesting functional properties. Here, the magnetic-field-induced splitting of ferrofluid droplets immersed in an immiscible liquid is presented, and related fascinating dynamics and applications are discussed. A magnetic field created by a permanent magnet induces instability on a mother droplet, which divides into two daughter droplets in less than 0.1 s. During the splitting process, the droplet undergoes a Plateau-Rayleigh-like instability, which is investigated using high-speed imaging. The dynamics of the resulting satellite droplet formation is shown to depend on the roughness of the supporting surface. Further increasing the field results in additional spli

SUBMITTER: Latikka M 

PROVIDER: S-EPMC7375242 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature