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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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Related Experiment Video

Updated: Sep 27, 2025

Author Spotlight: Advancements in DNA Nanosensors – Addressing Sensitivity and Selectivity Challenges in Molecular Detection

Author Spotlight: Advancements in DNA Nanosensors – Addressing Sensitivity and Selectivity Challenges in Molecular Detection

Published on: February 9, 2024

Engineering DNA quadruplexes in DNA nanostructures for biosensor construction.

Jingxin Liu¹, Li Yan¹, Shiliang He¹

¹College of Health Science and Environmental Engineering, Shenzhen Technology University, Shenzhen, 518118 China.

|April 11, 2022

Summary

This summary is machine-generated.

DNA quadruplexes, four-stranded nucleic acid structures, are engineered into complex DNA nanostructures. These are increasingly used in biosensing as probes and platforms for diverse applications.

Keywords:

DNA nanotechnology G-quadruplex biosensor i-motif

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Area of Science:

Biochemistry
Nanotechnology
Biosensing

Background:

DNA quadruplexes are four-stranded nucleic acid structures found in the human genome.
Artificial DNA nanostructures have been developed since the 1980s using DNA's programmable base-pairing and conjugation properties.
The integration of natural DNA quadruplexes and artificial DNA nanostructures is a growing area.

Purpose of the Study:

To review the combined use of DNA quadruplexes and DNA nanostructures in biosensing.
To highlight their roles in biosensor construction (recognition probe, signal probe, amplifier, platform).
To survey their implementation in various sensing scenarios.

Main Methods:

Literature review of DNA quadruplexes and DNA nanostructures in biosensing.
Analysis of their roles in biosensor design and function.
Survey of applications in different sensing contexts.

Main Results:

DNA quadruplexes and nanostructures are versatile components in biosensor development.
They function effectively as recognition probes, signal probes, amplifiers, and support platforms.
Successful implementation across diverse sensing applications has been demonstrated.

Conclusions:

The synergy between DNA quadruplexes and artificial nanostructures significantly advances biosensing technology.
Further development holds promise for novel biosensor designs and applications.
Future research should focus on expanding their capabilities and exploring new sensing frontiers.