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DNA Microarrays

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...

Labeling DNA Probes

Labeling DNA Probes

DNA probes are fragments of DNA labeled with a reporter tag to enable their detection or purification. The resulting labeled DNA probes can then hybridize to target nucleic acid sequences through complementary base-pairing, and may be used to recover or identify these regions.
Radioisotopes, fluorophores, or small molecule binding partners like biotin or digoxigenin, are the most widely used reporter tags for labeling DNA probes. These labels can be attached to the probe DNA molecule via...

Southern Blot

Southern Blot

Agarose gel electrophoresis is very useful in separating DNA fragments by size. Running a DNA ladder containing fragments of the known length alongside the sample helps determine the approximate length of the sample DNA fragments. However, additional steps are needed to verify the sequence identity of the sample DNA fragments.
Denatured DNA fragments must be transferred onto a carrier membrane from the gel to make it accessible to a probe - a small ssDNA fragment complementary to the target DNA...

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Updated: Jun 6, 2026

High-Density DNA and RNA microarrays - Photolithographic Synthesis, Hybridization and Preparation of Large Nucleic Acid Libraries

High-Density DNA and RNA microarrays - Photolithographic Synthesis, Hybridization and Preparation of Large Nucleic Acid Libraries

Published on: August 12, 2019

Recent patents and challenges on DNA microarray probe design technologies.

¹Institute for Information Technology, National Research Council, 100 des Aboiteaux St., Moncton, NB E1A 7R1, Canada. dan.tulpan@nrc-cnrc.gc.ca

Recent Patents on DNA & Gene Sequences

|December 3, 2010

Summary

This summary is machine-generated.

DNA microarray technology enables large-scale gene studies using specific DNA probes. This review covers probe design methods, focusing on hybridization quality for accurate results in genomic research.

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Area of Science:

Genomics
Molecular Biology
Biotechnology

Background:

Microarray technology allows simultaneous analysis of thousands of genes, a significant advancement from single-gene studies.
DNA microarrays depend on precisely designed probes for specific target binding.
Probe quality is critical and relies on DNA hybridization, the formation of double-stranded DNA.

Purpose of the Study:

To review current DNA probe design methods for microarrays.
To highlight the stringent criteria required for effective probe design.
To suggest future advancements in microarray probe technology.

Main Methods:

Review of patents and research publications on DNA probe design.
Analysis of criteria for selecting unique and complementary DNA sequences.
Examination of hybridization efficiency and specificity in probe design.

Main Results:

Current probe design methods necessitate unique sequences to avoid off-target binding in large genomic datasets.
Stringent design criteria are essential for ensuring the accuracy and reliability of microarray experiments.
The review identifies various established and emerging probe design strategies.

Conclusions:

Effective DNA probe design is paramount for the success of microarray-based genomic studies.
Continued innovation in probe design is needed to enhance specificity and efficiency.
Future research should focus on optimizing probe selection for complex genomic applications.