Year: 2025
Type: article
Abstract: Precise, localized flow control in microfluidic devices remains a difficult challenge. In this paper we demonstrate, theoretically, how active droplets might be harnessed to overcome this challenge. Active droplets are produced along the microchannel wall via stimulation of a responsive hydrogel, and the ensuing phoretic slip flows drive transport and mixing in the microfluidic device. We find optimal transport times for particles traversing the channel, and show that, by switching between two droplet configurations, chaotic mixing can be achieved.
Source: Physical Review Fluids
DOI: 10.1103/csrt-n3fx
Institution: University of Warwick
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Funder: Leverhulme Trust
Award: G4285754894
OpenAlex ID: W4414313233