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相关概念视频

Nucleic Acids02:43

Nucleic Acids

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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,...
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Nucleic acids02:43

Nucleic acids

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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,...
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Nucleic Acids02:43

Nucleic Acids

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Nucleic Acid Structure01:25

Nucleic Acid Structure

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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...
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Nucleic Acids and Nucleotides01:20

Nucleic Acids and Nucleotides

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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....
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Biosynthesis of Nucleic Acids01:28

Biosynthesis of Nucleic Acids

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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...
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Updated: Feb 13, 2026

Kinetic Screening of Nuclease Activity using Nucleic Acid Probes
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Kinetic Screening of Nuclease Activity using Nucleic Acid Probes

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智能DNA水凝响应编码可实现便携式核酸检测

Jie Luo, Yu Tang, Hongzhao Yang

  • 1Department of Biological and Environmental Engineering, Cornell University, Ithaca NY14853-5701, United States.

ACS nano
|February 12, 2026
PubMed
概括
此摘要是机器生成的。

一个新的DNA水凝平台,Q-RAPID,可以快速,便携式核酸检测. 这种生物传感装置为识别病原体提供了高精度,提高了在各种医疗保健环境中的诊断.

关键词:
这是一种DNA水凝.智能数字分析 智能数字分析核酸检测核酸检测检测基于纸张的微流体材料关心点检测检测的测试点.

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相关实验视频

Last Updated: Feb 13, 2026

Kinetic Screening of Nuclease Activity using Nucleic Acid Probes
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Kinetic Screening of Nuclease Activity using Nucleic Acid Probes

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Visual Detection of Multiple Nucleic Acids in a Capillary Array
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Fabrication of Electrochemical-DNA Biosensors for the Reagentless Detection of Nucleic Acids, Proteins and Small Molecules
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Fabrication of Electrochemical-DNA Biosensors for the Reagentless Detection of Nucleic Acids, Proteins and Small Molecules

Published on: June 1, 2011

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科学领域:

  • 生物材料科学 生物材料科学
  • 分子诊断学 分子诊断学
  • 生物传感技术的技术

背景情况:

  • DNA水凝显示了生物传感的潜力,但由于缓慢的扩散和体积,在便携式诊断方面面临挑战.
  • 目前的方法缺乏快速,准确和可访问的核酸检测,用于点的护理应用.

研究的目的:

  • 开发一个智能DNA水凝响应感应平台,Q-RAPID,用于快速和便携式核酸检测.
  • 为了克服现有的DNA水凝生物传感器的局限性,改进目标传输,信号放大和数据输出.

主要方法:

  • Q-RAPID集成了用于毛细管驱动的纸质支架,用于DNA杂交和链位移的水凝传感模块,以及数字QR码输出.
  • 该系统利用由特定目标DNA杂交触发的色度反应来进行视觉信号放大.
  • 智能手机集成允许自动分类和无线报告结果.

主要成果:

  • 在检测目标核酸方面,Q-RAPID表现出高性能,达到91%的灵敏度和97.3%的精度.
  • 使用病毒伪病毒模型和100个临床标本进行测试显示95%的一致性.
  • 该平台的设计可重新配置,用于检测各种呼吸道病原体.

结论:

  • Q-RAPID为便携式核酸检测提供了一个有前途的解决方案,克服了当前DNA水凝生物传感器的关键局限性.
  • 该平台的准确性,速度和易用性支持其在各种医疗保健环境中的应用,包括资源有限的环境.
  • 这项技术有可能扩大快速分子诊断的范围.