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Reliable addition of reagents into microfluidic droplets

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Reliable addition of reagents into microfluidic droplets

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dc.contributor.author Sivasamy Jayaprakash
dc.contributor.author Chim, Yong Cai
dc.contributor.author Wong, Teck Neng
dc.contributor.author Nguyen, Nam-Trung
dc.contributor.author Yobas, Levent
dc.date.accessioned 2012-05-10T01:21:29Z
dc.date.available 2012-05-10T01:21:29Z
dc.date.copyright 2010
dc.date.issued 2012-05-10
dc.identifier.citation Sivasamy, J., Chim, Y. C., Wong,T. N., Nguyen, N. T., & Yobas, L. (2009). Reliable addition of reagents into microfluidic droplets. Microfluidics and Nanofluidics, 8(3), 409-416.
dc.identifier.uri http://hdl.handle.net/10220/7829
dc.description.abstract This article reports a design that reliably adds reagents into droplets by exploiting the physics of fluid flow at a T-junction in the microchannel. An expanded section right after the T-junction enhances merging of a stream with a droplet, eliminates the drawbacks such as extra droplet formation and long mixing time. The expanded section reduces the pressure buildup at the T-junction and minimizes the tendency to form extra droplets; plays the role in creating low Laplace pressure jump across the interface of the droplet forming from the T-junction which reduces the probability of forming extra droplet in the merging process; provides space for droplet coalescence if there is an extra droplet due to droplet break-up before merging. In this design, after merging, the reactants are in axial arrangement inside the droplets which lead to faster mixing. Reliable addition of reagent to the droplets happens for the combination of flow rates in a broad range from 25 to 250 μl/h, for both DI water (Q DI) and fluorescent (Q fluo) streams.
dc.format.extent 25 p.
dc.language.iso en
dc.relation.ispartofseries Microfluidics and nanofluidics
dc.rights © 2009 Springer-Verlag. This is the author created version of a work that has been peer reviewed and accepted for publication by Microfluidics and Nanofluidics, Springer-Verlag. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: DOI: [http://dx.doi.org/10.1007/s10404-009-0531-5].
dc.subject DRNTU::Engineering::Mechanical engineering.
dc.title Reliable addition of reagents into microfluidic droplets
dc.type Journal Article
dc.contributor.school School of Mechanical and Aerospace Engineering
dc.identifier.doi http://dx.doi.org/10.1007/s10404-009-0531-5
dc.description.version Accepted version

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