A microfluidic platform for on-demand formation and merging of microdroplets using electric control

Hao Gu; Chandrashekhar U. Murade; Michael H.G. Duits; Frieder Mugele

doi:10.1063/1.3570666

A microfluidic platform for on-demand formation and merging of microdroplets using electric control

Hao Gu
, Chandrashekhar U. Murade
, Michael H.G. Duits
, Frieder Mugele

Research output: Contribution to journal › Article › Academic › peer-review

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Abstract

We discuss a microfluidic system in which (programmable) local electric fields originating from embedded and protected electrodes are used to control the formation and merging of droplets in a microchannel. The creation of droplets-on-demand (DOD) is implemented using the principle of electrowetting. Combined with hydrodynamic control, the droplet size and formation frequency can be varied independently. Using two synchronized DOD injectors, merging-on-demand (MOD) is achieved via electrocoalescence. The efficiency of MOD is 98% based on hundreds of observations. These two functionalities can be activated independently.

Original language	English
Article number	011101
Pages (from-to)	-
Journal	Biomicrofluidics
Volume	5
Issue number	1
DOIs	https://doi.org/10.1063/1.3570666
Publication status	Published - 2011

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abstract = "We discuss a microfluidic system in which (programmable) local electric fields originating from embedded and protected electrodes are used to control the formation and merging of droplets in a microchannel. The creation of droplets-on-demand (DOD) is implemented using the principle of electrowetting. Combined with hydrodynamic control, the droplet size and formation frequency can be varied independently. Using two synchronized DOD injectors, merging-on-demand (MOD) is achieved via electrocoalescence. The efficiency of MOD is 98\% based on hundreds of observations. These two functionalities can be activated independently.",

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AB - We discuss a microfluidic system in which (programmable) local electric fields originating from embedded and protected electrodes are used to control the formation and merging of droplets in a microchannel. The creation of droplets-on-demand (DOD) is implemented using the principle of electrowetting. Combined with hydrodynamic control, the droplet size and formation frequency can be varied independently. Using two synchronized DOD injectors, merging-on-demand (MOD) is achieved via electrocoalescence. The efficiency of MOD is 98% based on hundreds of observations. These two functionalities can be activated independently.

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A microfluidic platform for on-demand formation and merging of microdroplets using electric control

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