相关实验视频

Updated: Jan 28, 2026

Fabrication of Electrochemical-DNA Biosensors for the Reagentless Detection of Nucleic Acids, Proteins and Small Molecules

Fabrication of Electrochemical-DNA Biosensors for the Reagentless Detection of Nucleic Acids, Proteins and Small Molecules

Published on: June 1, 2011

单分子核酸检测与一个可重新配置的旋转DNA原始化纳米装置

Emily Tsang¹, Line M Lund¹, Victoria Birkedal¹

¹Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, Aarhus C 8000, Denmark.

|January 26, 2026

概括

研究人员创建了一个可重复使用的DNA纳米设备,用于连续的核酸传感. 这种DNA原形装置实现了低纳米分子检测极限,并为分子动力学提供了洞察力.

科学领域:

纳米技术纳米技术
生物技术是生物技术.
分子生物学分子生物学

背景情况:

DNA纳米设备为纳米级工程提供可编程平台.
宏观机器激发了具有特殊功能的动态纳米设备的设计.

研究的目的:

开发一种基于DNA原形的旋转纳米设备,用于连续的核酸传感.
为了证明纳米设备的可逆性和再生能力,用于多个检测回合.
设计单模和双模纳米设备用于弗斯特共振能量转移 (FRET) 和多重测量.

主要方法:

利用DNA原始创作进行精确的纳米级构造.
用于用于可逆目标检测的托托介导链位移.
应用组合和单分子技术来分析纳米设备动态和构造变化.
设计单模式 (FRET) 和双模式 (FRET/quenched) 系统,用于各种检测策略.

主要成果:

实现了核酸传感的低纳米分子范围的检测极限.
在多个检测周期中证明了纳米设备的成功再生.
在单个分子水平上获得了对动态形状变化的高分辨率洞察力.
通过使用双模式纳米设备成功实现了多重测量.

结论:

开发的DNA原木纳米设备可以实现连续和可逆的核酸传感.
单分子分析为纳米设备的动态行为提供了宝贵的见解.
由于DNA原形的可编程性,可以实现多功能传感器设计,包括多重检测.
这项工作为优化DNA纳米设备设计,用于增强传感应用提供了基础.

关键词:

DNA纳米技术 DNA纳米技术基因原始的DNA原始化光是一种光.纳米设备是一个纳米设备.单分子光谱学单分子光谱学子的移位子的移位

更多相关视频

Author Spotlight: Single-Molecule Surface-Enhanced Raman Scattering Measurements Enabled by Plasmonic DNA Origami Nanoantennas

Author Spotlight: Single-Molecule Surface-Enhanced Raman Scattering Measurements Enabled by Plasmonic DNA Origami Nanoantennas

Published on: July 21, 2023

Production of Dynein and Kinesin Motor Ensembles on DNA Origami Nanostructures for Single Molecule Observation

Production of Dynein and Kinesin Motor Ensembles on DNA Origami Nanostructures for Single Molecule Observation

Published on: October 15, 2019

相关概念视频

Nucleic Acids

Nucleic Acids

Nucleic acids are the most important macromolecules for the continuity of life. They carry the cell's genetic blueprint and carry instructions for its functioning.
DNA and RNA
The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). DNA is the genetic material in all living organisms, ranging from single-celled bacteria to multicellular mammals. It is in the nucleus of eukaryotes and in the organelles, chloroplasts, and mitochondria. In prokaryotes,...

Nucleic acids

Nucleic acids

Nucleic acids are the most important macromolecules for the continuity of life. They carry the cell's genetic blueprint and carry instructions for its functioning.
DNA and RNA
The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). DNA is the genetic material in all living organisms, ranging from single-celled bacteria to multicellular mammals. It is in the nucleus of eukaryotes and in the organelles, chloroplasts, and mitochondria. In prokaryotes,...

Nucleic Acids

Nucleic Acids

Biosynthesis of Nucleic Acids

Biosynthesis of Nucleic Acids

Nucleic acid biosynthesis is a fundamental biochemical process that produces the purine and pyrimidine nucleotides essential for DNA and RNA synthesis. This pathway maintains a balanced nucleotide pool, preventing imbalances that could jeopardize genetic integrity and cellular function. Given the crucial role of nucleotides, their synthesis is tightly regulated to ensure proper cellular homeostasis.Purine BiosynthesisThe biosynthesis of purine nucleotides begins with ribose-5-phosphate, a...

Nucleic Acid Structure

Nucleic Acid Structure

The pentose sugar in DNA is deoxyribose, while in RNA the pentose sugar is ribose. The difference between the sugars is the presence of the hydroxyl group on the ribose's second carbon and a hydrogen on the deoxyribose's second carbon. The phosphate residue attaches to the hydroxyl group of the 5′ carbon of one sugar and the hydroxyl group of the 3′ carbon of the sugar of the next nucleotide, which forms a 5′ to 3′ phosphodiester linkage.
DNA Structure
DNA...

Nucleic Acids and Nucleotides

Nucleic Acids and Nucleotides

Nucleic acids are the most important macromolecules for the continuity of life. They carry the cell's genetic blueprint and have instructions for its functioning. The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).
Deoxyribonucleic Acid (DNA)
DNA is the genetic material in all living organisms, ranging from single-celled bacteria to multicellular mammals. It is in the nucleus of eukaryotes and the organelles such as chloroplasts and mitochondria....