Document Type


Publication Date

February 2012

Publication Title



Here, we present a microfluidic droplet trap that takes advantage of the net Laplace pressure force generated when a droplet is differentially constricted. Mathematical simulations were first used to understand the working range of the component; followed by finite element modeling using the CFDsoftware package to further characterize the behavior of the system. Controlled release of the trapped droplets is also demonstrated through both a mechanical method and a chemical method that manipulates the total pressure exerted on the trapped droplet. The unique design of this trapping device also provides the capability for selection of a single dropletfrom a train, as well as droplet fusion.


This article originally appeared in Biomicrofluidics, 8, 014110, 2012. © 2012 AIP Publishing LLC. This work can also be found online at this link