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Related Experiment Video

Updated: May 27, 2026

A Microfluidic-based Electrochemical Biochip for Label-free DNA Hybridization Analysis
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A Microfluidic-based Electrochemical Biochip for Label-free DNA Hybridization Analysis

Published on: September 10, 2014

Microfluidic DNA fragmentation for on-chip genomic analysis.

Lingling Shui1, Johan G Bomer, Mingliang Jin

  • 1BIOS/Lab-on-Chip Group, MESA + Institute for Nanotechnology, University of Twente, The Netherlands.

Nanotechnology
|November 22, 2011
PubMed
Summary
This summary is machine-generated.

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This study introduces a clog-free microfluidic chip for high-throughput DNA fragmentation using hydrodynamic shearing. The device efficiently fragments salmon sperm DNA to approximately 5 kilobase pairs at low pressures.

Area of Science:

  • Biotechnology
  • Microfluidics
  • Molecular Biology

Background:

  • High-throughput DNA fragmentation is crucial for genomic applications.
  • Existing methods can suffer from clogging and low efficiency.

Purpose of the Study:

  • To develop a clog-free microfluidic chip for efficient DNA fragmentation.
  • To investigate the impact of channel geometry and recirculation on fragment length and yield.

Main Methods:

  • Utilized hydrodynamic shearing in micromachined constrictions within microfluidic channels.
  • Employed low hydraulic pressures (≤1 bar) for DNA fragmentation.
  • Investigated the effects of constriction length and sample recirculation (up to 10x).

Main Results:

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Last Updated: May 27, 2026

A Microfluidic-based Electrochemical Biochip for Label-free DNA Hybridization Analysis
14:53

A Microfluidic-based Electrochemical Biochip for Label-free DNA Hybridization Analysis

Published on: September 10, 2014

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

Simple Bulk Readout of Digital Nucleic Acid Quantification Assays
06:55

Simple Bulk Readout of Digital Nucleic Acid Quantification Assays

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  • Achieved reproducible fragmentation of salmon sperm DNA to ~5 kilobase pairs.
  • Demonstrated that longer constrictions yield shorter fragments but require higher pressure.
  • Showed that 10x sample recirculation in short constrictions reduces fragment length variation and improves yield.

Conclusions:

  • The developed microfluidic chip offers a high-throughput, clog-free solution for DNA fragmentation.
  • Channel geometry and recirculation are key parameters for controlling fragment size and improving efficiency.
  • This technology has potential applications in genomics and molecular biology workflows.