基于寡核酸的稳定单体分支DNA纳米结构的最小数量:生物化学和生物物理研究研究
Avishek Kar1, Bineeth Baral2, Umakanta Subudhi1
1DNA Nanotechnology & Application Laboratory, Environment and Sustainability Department, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751013, Odisha, India; Academy of Scientific & Innovative Research (AcSIR), Ghaziabad 201002, India.
International journal of biological macromolecules
|July 18, 2024
概括
这项研究使用最小的寡核酸设计了稳定的分支DNA (bDNA) 纳米结构. 这些bDNA纳米结构在生理条件下表现出稳定性,为生物医学应用铺平了道路.
科学领域:
- 生物技术是生物技术.
- 纳米技术 纳米技术
- 分子生物学分子生物学
背景情况:
- DNA的可编程性使其成为纳米材料的关键组成部分.
- 分支DNA (bDNA) 纳米结构提供了多样化的应用,但需要优化合成.
- 对于稳定的bDNA合成而言,核酸的最佳数量仍未得到充分探索.
研究的目的:
- 设计稳定的单体分支DNA (bDNA) 纳米结构,使用最佳数量的寡核酸 (两个或三个).
- 为了研究这些bDNA纳米结构在各种生理条件下的稳定性.
- 探索这些bDNA纳米结构的应用潜力,例如针对特定目标的转录调节.
主要方法:
- 设计和合成稳定的单体bDNA纳米结构使用两个或三个寡核酸.
- 评估bDNA纳米结构在pH值,阴离子度,胎儿牛血清和DNase I.范围内的稳定性.
- 使用凝减缓试验来确认寡核酸结合和热力学分析来了解自我组装相互作用.
主要成果:
- 成功设计稳定的单体bDNA纳米结构,仅使用两或三种寡核酸.
- 在各种生理条件下证明了这些bDNA纳米结构的稳定性,包括血清和酶降解.
- 热力学分析揭示了键和范德瓦尔斯力在bDNA自我组装中的关键作用.
- 凝减缓试验证实了补充性寡核酸的特定结合.
结论:
- 稳定,自组装的bDNA纳米结构可以使用最佳数量的寡核酸有效地构建.
- 这些bDNA纳米结构在生理环境中表现出显著的稳定性,使其适用于生物医学应用.
- 这些纳米结构的可编程性和稳定性为诸如向基因调节等应用开辟了道路.
相关概念视频
Nucleic Acid Structure
6.1K
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...
DNA Structure
DNA...
6.1K
The DNA Helix
138.9K
Overview
138.9K
Nucleic Acids
44.0K
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,...
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,...
44.0K
DNA as a Genetic Template
21.9K
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...
21.9K
Nucleic acids
161.4K
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,...
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,...
161.4K


