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Related Concept Videos

DNA Microarrays02:34

DNA Microarrays

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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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High-throughput Detection of Respiratory Pathogens in Animal Specimens by Nanoscale PCR
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Rapid, inexpensive multiplex pathogen detection using resequencing microarrays.

Kendall Hoff1, Xun Ding2, Xing Liang Liu3

  • 1Centrillion Technologies, Palo Alto, CA 94303, United States; Department of Biomedical Engineering, University of New Mexico, Albuquerque, NM 87131, United States.

Journal of Virological Methods
|January 18, 2025
PubMed
Summary
This summary is machine-generated.

A new microarray assay rapidly detects SARS-CoV-2, influenza A, and influenza B in under two hours. This affordable, high-sensitivity pathogen screening method aids global public health surveillance.

Keywords:
COVID-19DNA ChipDNA SequencingRT-PCRSARS-CoV-2Tiling arrayVPCR

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Area of Science:

  • Microbiology
  • Genomics
  • Public Health

Background:

  • Global genomic surveillance is crucial for monitoring pathogen outbreaks.
  • Current high-throughput methods for pathogen identification are often costly and time-consuming.

Purpose of the Study:

  • To develop and validate a rapid, cost-effective assay for detecting multiple respiratory pathogens.
  • To assess the clinical performance of a novel resequencing microarray for pathogen screening.

Main Methods:

  • Designed and manufactured a resequencing microarray for identifying 35 viral pathogens, 21 bacteria, and 16 antibiotic resistance genes.
  • Developed a rapid assay for the simultaneous detection of SARS-CoV-2, influenza A, and influenza B using the microarrays.
  • Clinically validated the assay's sensitivity and speed.

Main Results:

  • The assay provides results in under two hours.
  • Achieved high sensitivity with limits of detection of 125 copies/mL for SARS-CoV-2 and low TCID50/mL for influenza A and B.
  • The microarray is suitable for mass production via wafer-scale synthesis, ensuring affordability.

Conclusions:

  • The developed microarray assay offers a rapid, sensitive, and affordable solution for pathogen detection.
  • This technology has significant potential for enhancing public health surveillance and outbreak response.
  • The cost-effective nature of mass-produced microarrays makes advanced pathogen screening more accessible.