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Microfluidic particle zipper enables controlled loading of droplets with distinct particle types

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Abstract

Current encapsulation approaches control the number of particles encapsulated per droplet, but not the particle types; consequently, they are unable to generate droplets containing combinations of distinct particle types, limiting the reactions that can be performed. We describe a microfluidic particle zipper that allows the number and types of particles encapsulated in every droplet to be controlled. The approach exploits self-ordering to generate repeating particle patterns that allow controlled encapsulation in droplets. We use the method to combine barcode particles with gel encapsulated cells to profile multiple disease relevant genomic loci with single cell sequencing. Particle zippers can operate in series to generate complex particle compositions in droplets.

Graphical abstract: Microfluidic particle zipper enables controlled loading of droplets with distinct particle types

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Supplementary files

Article information


Submitted
04 Apr 2020
Accepted
01 Jun 2020
First published
01 Jun 2020

Lab Chip, 2020, Advance Article
Article type
Paper

Microfluidic particle zipper enables controlled loading of droplets with distinct particle types

C. L. Delley and A. R. Abate, Lab Chip, 2020, Advance Article , DOI: 10.1039/D0LC00339E

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