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Related Concept Videos

DNA Microarrays02:34

DNA Microarrays

Microarrays are high-throughput and relatively inexpensive assays that can be automated to analyze large quantities of data at a time. They are used in genome-wide studies to compare gene or protein expression under two varied conditions, such as healthy and diseased states. Microarrays consist of glass or silica slides on which probe molecules are covalently attached through surface functionalization. Most commonly, the slides are prepared through the chemisorption of silanes to silica...

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Related Experiment Video

Updated: May 26, 2026

Visual Detection of Multiple Nucleic Acids in a Capillary Array
08:56

Visual Detection of Multiple Nucleic Acids in a Capillary Array

Published on: November 15, 2017

Microfabricated linear hydrogel microarray for single-nucleotide polymorphism detection.

Avraham Bromberg1, Erik C Jensen, Jungkyu Kim

  • 1Department of Chemistry, University of California, Berkeley, California 94720, United States.

Analytical Chemistry
|December 8, 2011
PubMed
Summary
This summary is machine-generated.

This study introduces a novel platform for rapid, multiplexed single-nucleotide polymorphism detection using gel-based microchannels. The method achieves high sensitivity and speed for DNA analysis.

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Related Experiment Videos

Last Updated: May 26, 2026

Visual Detection of Multiple Nucleic Acids in a Capillary Array
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The Visual Colorimetric Detection of Multi-nucleotide Polymorphisms on a Pneumatic Droplet Manipulation Platform
10:01

The Visual Colorimetric Detection of Multi-nucleotide Polymorphisms on a Pneumatic Droplet Manipulation Platform

Published on: September 27, 2016

Area of Science:

  • Biotechnology
  • Molecular Biology
  • Genetics

Background:

  • Single-nucleotide polymorphisms (SNPs) are crucial genetic markers.
  • Existing SNP detection methods can be time-consuming and require large DNA amounts.
  • There is a need for rapid, sensitive, and multiplexed SNP analysis platforms.

Purpose of the Study:

  • To develop a novel platform for rapid, multiplexed detection of single-nucleotide polymorphisms (SNPs).
  • To enable precise analysis of small DNA quantities.
  • To improve upon existing DNA microarray technologies for SNP genotyping.

Main Methods:

  • Development of a microchannel array with gels copolymerized with unique oligonucleotide capture probes.
  • Analysis of DNA samples via electrophoresis through the linear array of gels.
  • Utilizing differential melting of target DNA from capture probes under varying electric field and temperature conditions for SNP identification.

Main Results:

  • Achieved significantly shorter incubation times compared to standard surface DNA microarrays.
  • Enabled precise analysis of as little as 0.6 femtomoles of DNA target due to target concentration within gels.
  • Demonstrated rapid and unambiguous identification of single-nucleotide polymorphisms.

Conclusions:

  • The developed platform offers a rapid and sensitive method for multiplexed SNP detection.
  • This technology has potential applications in genetic research, diagnostics, and personalized medicine.
  • The gel-based microchannel approach overcomes limitations of current SNP genotyping techniques.