Jump to main content
Jump to site search

Issue 16, 2010
Previous Article Next Article

Dynamics of microfluidic droplets

Author affiliations


This critical review discusses the current understanding of the formation, transport, and merging of drops in microfluidics. We focus on the physical ingredients which determine the flow of drops in microchannels and recall classical results of fluid dynamics which help explain the observed behaviour. We begin by introducing the main physical ingredients that differentiate droplet microfluidics from single-phase microfluidics, namely the modifications to the flow and pressure fields that are introduced by the presence of interfacial tension. Then three practical aspects are studied in detail: (i) The formation of drops and the dominant interactions depending on the geometry in which they are formed. (ii) The transport of drops, namely the evaluation of drop velocity, the pressure-velocity relationships, and the flow field induced by the presence of the drop. (iii) The fusion of two drops, including different methods of bridging the liquid film between them which enables their merging.

Graphical abstract: Dynamics of microfluidic droplets

Back to tab navigation

Article information

19 Jan 2010
28 Apr 2010
First published
18 Jun 2010

Lab Chip, 2010,10, 2032-2045
Article type
Critical Review

Dynamics of microfluidic droplets

C. N. Baroud, F. Gallaire and R. Dangla, Lab Chip, 2010, 10, 2032
DOI: 10.1039/C001191F

Social activity

Search articles by author