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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...

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Disc-based microarrays: principles and analytical applications.

Sergi Morais¹, Rosa Puchades², Ángel Maquieira²

¹Departamento de Química, Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Camino de Vera s/n, 46071, Valencia, Spain. smorais@qim.upv.es.

Analytical and Bioanalytical Chemistry

|February 29, 2016

Summary

This summary is machine-generated.

Optical discs like CDs are repurposed for molecular biorecognition assays, creating affordable protein and DNA microarrays. Standard computer disk drives serve as readers for diverse applications in healthcare and environmental monitoring.

Keywords:

Biosensing Compact disc Consumer electronics Molecular recognition Point of care

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Area of Science:

Biotechnology
Analytical Chemistry
Materials Science

Background:

Optical discs (CDs, DVDs, Blu-ray) offer versatile platforms for developing microarrays.
Standard computer disk drives provide accessible and cost-effective optical detection systems.
CD technology, originating from the audio-video industry, is adapted for analytical applications.

Purpose of the Study:

To review and critically evaluate the state-of-the-art in disc-based microarrays.
To highlight analytical developments using chemically activated or raw CDs for probe immobilization.
To describe the evolution of disc drives as optical detectors for these microarrays.

Main Methods:

Immobilization of biological probes (proteins, DNA, peptides) onto standard optical discs.
Utilizing chemically activated or raw CDs for assay development.
Employing standard optical drives for reading and analyzing the disc-based assays.

Main Results:

Disc-based microarrays demonstrate potential in healthcare, environmental monitoring, and food safety.
Various biological probes can be successfully immobilized and detected on optical discs.
The readability of discs is maintained throughout the assay process using standard drives.

Conclusions:

Disc-based microarrays represent a significant advancement in affordable biosensing technology.
The integration of optical discs and standard drives offers a versatile platform for life science applications.
Continued development promises broader applications in diagnostics and monitoring.