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Related Experiment Video

Updated: May 21, 2026

High Throughput Single-cell and Multiple-cell Micro-encapsulation
16:19

High Throughput Single-cell and Multiple-cell Micro-encapsulation

Published on: June 15, 2012

High throughput single-cell and multiple-cell micro-encapsulation.

Todd P Lagus1, Jon F Edd

  • 1Department of Mechanical Engineering, Vanderbilt University, USA.

Journal of Visualized Experiments : Jove
|June 27, 2012
PubMed
Summary
This summary is machine-generated.

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This study presents a novel microfluidic method for precisely controlling the number of cells encapsulated in droplets, achieving high efficiencies for single and double cell encapsulation. This technique enables the study of cell isolation and interactions in controlled group sizes, advancing high-throughput screening and cytometry.

Area of Science:

  • Biotechnology and Biomedical Engineering
  • Microfluidics and Lab-on-a-Chip Technologies
  • Cellular Analysis and High-Throughput Screening

Background:

  • Traditional cell encapsulation in microfluidic drops offers confinement but lacks control over cell numbers per drop, limiting studies on cell interactions.
  • Existing methods often rely on Poisson statistics, leading to low encapsulation efficiencies and requiring downstream sorting.
  • Controlled cell encapsulation is crucial for applications in high-throughput screening, cytometry, and studying intercellular signaling.

Purpose of the Study:

  • To develop and demonstrate a microfluidic method for controlled, repeated encapsulation of a specific number of cells (e.g., one or two cells) per droplet.
  • To improve encapsulation efficiencies beyond random (Poisson) distributions for single and multiple cell studies.
  • To enable the investigation of cell isolation and interactions within precisely sized cell groups.

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Last Updated: May 21, 2026

High Throughput Single-cell and Multiple-cell Micro-encapsulation
16:19

High Throughput Single-cell and Multiple-cell Micro-encapsulation

Published on: June 15, 2012

An Ultrahigh-throughput Microfluidic Platform for Single-cell Genome Sequencing
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An Ultrahigh-throughput Microfluidic Platform for Single-cell Genome Sequencing

Published on: May 23, 2018

A Microfluidic Platform for High-throughput Single-cell Isolation and Culture
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A Microfluidic Platform for High-throughput Single-cell Isolation and Culture

Published on: June 16, 2016

Main Methods:

  • Utilized microfluidic flow-focusing to generate monodisperse aqueous-in-oil droplets.
  • Integrated passive inertial ordering of cells/particles within the aqueous flow to achieve predictable arrival at the nozzle.
  • Tuned flow rates to synchronize particle ordering frequency with droplet generation frequency for controlled encapsulation.

Main Results:

  • Achieved high single-particle encapsulation efficiency P(k=1) of 83.7% and double-particle efficiency P(k=2) of 79.5%, significantly exceeding Poisson predictions (39.3% and 33.3%, respectively).
  • Demonstrated the importance of consistent cell/particle concentration for efficient encapsulation.
  • Addressed dripping to jetting transitions in droplet generation.

Conclusions:

  • The developed ordered encapsulation method significantly enhances encapsulation efficiency for controlled numbers of cells.
  • This technique provides a robust platform for studying both isolated cells and controlled cell-cell interactions.
  • The method is scalable for encapsulating larger, defined numbers of cells, with potential applications across various biological assays.