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DNA as a Genetic Template

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Two structural features of the DNA molecule provide a basis for the mechanisms of heredity: the four nucleotide bases and its double-stranded nature. The Watson-Crick model of double-helical DNA structure, proposed in 1952, drew heavily upon the X-ray crystallography work of researchers Rosalind Franklin and Maurice Wilkins. Watson, Crick, and Wilkins jointly received the Nobel Prize in Physiology or Medicine for their work in 1962. Franklin was, controversially, excluded from the prize for...

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Related Experiment Video

Updated: Jan 25, 2026

Development of an Electrochemical DNA Biosensor to Detect a Foodborne Pathogen

Development of an Electrochemical DNA Biosensor to Detect a Foodborne Pathogen

Published on: June 3, 2018

Progress in biosensor based on DNA-templated copper nanoparticles.

Zhihe Qing¹, Ailing Bai¹, Shuohui Xing¹

¹Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, Hunan Provincial Engineering Research Center for Food Processing of Aquatic Biotic Resources, School of Chemistry and Food Engineering, Changsha University of Science and Technology, Changsha, 410114, PR China.

Biosensors & Bioelectronics

|May 16, 2019

Summary

This summary is machine-generated.

DNA-templated copper nanoparticles (DNA-CuNPs) offer simple, rapid, and low-toxicity preparation for advanced biochemical sensing. This review covers DNA-CuNPs synthesis and biosensing applications, highlighting future potential.

Keywords:

Biosensor Copper nanoparticles DNA Template

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Area of Science:

Nanomaterials Science
Biochemistry
Analytical Chemistry

Background:

Metal nanomaterials (MNs) are crucial in microelectronics, biosensing, and biomedicine due to unique properties.
Deoxyribonucleic acid (DNA) serves as an effective template for nanopreparation, offering programmable synthesis and molecular recognition.
DNA-templated copper nanoparticles (DNA-CuNPs) have emerged as a significant development in nanomaterial synthesis.

Purpose of the Study:

To comprehensively review the preparation methods of DNA-CuNPs.
To explore the diverse applications of DNA-CuNPs in biochemical sensing.
To highlight future prospects and challenges in the field of DNA-CuNPs for biosensing.

Main Methods:

Synthesis of DNA-CuNPs using DNA as a template for controlled nanoparticle formation.
Exploitation of DNA-CuNPs in various label-free detection techniques.
Integration of DNA-CuNPs with analytical platforms like fluorescence, electrochemistry, and spectroscopy.

Main Results:

DNA-CuNPs exhibit advantages such as simple and rapid preparation, high efficiency, and low biological toxicity.
DNA-CuNPs enable label-free detection across multiple analytical technologies.
Successful application of DNA-CuNPs in diverse biochemical sensing scenarios since 2010.

Conclusions:

DNA-CuNPs represent a promising platform for advanced biosensing applications.
The unique properties of DNA-CuNPs facilitate sensitive and efficient detection methods.
Further research into DNA-CuNPs holds potential for significant advancements in biosensing technology.