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Updated: May 16, 2026

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

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

Published on: May 23, 2018

High-throughput genome scanning in constant tension fluidic funnels.

Joshua W Griffis¹, Ekaterina Protozanova, Douglas B Cameron

¹Pathogenetix, Inc., 12 Gill St., Suite 3150, Woburn, MA 01801, USA.

|December 4, 2012

Summary

Genome Sequence Scanning (GSS) technology for bacterial identification is enhanced by a novel compound funnel design. This innovation significantly increases molecule throughput and detection sensitivity for improved DNA analysis.

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Area of Science:

Biotechnology
Genomics
Microfluidics

Background:

Genome Sequence Scanning (GSS) relies on detecting fluorescent tags on stretched DNA molecules in microfluidic devices.
DNA stretching efficiency and sensitivity are critical for GSS performance.
Previous research focused on fluid dynamics' role in DNA stretching within continuous flow systems.

Purpose of the Study:

To develop a novel compound funnel design for microfluidic devices to enhance Genome Sequence Scanning (GSS).
To improve effective molecule throughput and detection sensitivity in GSS.
To optimize DNA molecule stretching and retention within continuous flow systems.

Main Methods:

Designed novel compound funnel geometries considering fluid strain rate and molecule tension.

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Published on: October 1, 2017

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Last Updated: May 16, 2026

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

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

Published on: May 23, 2018

Rapid Subtractive Patterning of Live Cell Layers with a Microfluidic Probe

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Published on: September 15, 2016

A Simple, Robust, and High Throughput Single Molecule Flow Stretching Assay Implementation for Studying Transport of Molecules Along DNA

A Simple, Robust, and High Throughput Single Molecule Flow Stretching Assay Implementation for Studying Transport of Molecules Along DNA

Published on: October 1, 2017

Utilized a constant-strain detection channel to minimize molecular tumbling and relaxation.

Analyzed fluid velocities and molecular behavior under varying flow conditions.

Main Results:

Achieved over a thirty-fold increase in effective molecule throughput compared to previous devices.
Demonstrated improved retention of stretched DNA molecules.
Enabled a priori prediction of spatial resolution bias in accelerating flow.

Conclusions:

The novel compound funnel design significantly enhances GSS performance by increasing molecule throughput.
Optimized microfluidic geometries improve DNA stretching and retention, boosting detection sensitivity.
This advancement offers a more efficient and sensitive platform for bacterial identification using GSS technology.