相关实验视频
Updated: Feb 12, 2026

07:13
Measuring Active and Passive Tameness Separately in Mice
Published on: August 10, 2018
7.6K
使用模板增长来服管体自我组装的多态化
Sirui Liu1, Thomas E Videbæk1, W Benjamin Rogers1
1Martin A. Fisher School of Physics, Brandeis University, Waltham, Massachusetts 02453, USA.
The Journal of chemical physics
|February 11, 2026
概括
使用精确定义的DNA原木种子进行模板增长,可以防止在自闭式组装中产生不必要的形状. 这种方法可以控制管子直径和螺旋性,减少结构多态性,以实现可预测的纳米级构造.
科学领域:
- 纳米技术纳米技术
- 材料科学 材料科学 材料科学
- 生物物理学的生物物理.
背景情况:
- 纳米结构的自闭组装通常会导致由于曲波动导致的多态性.
- 自发核化导致非目标组件,限制结构控制.
- 模板增长提供了一种策略,通过从定义的种子开始组装来克服多态性.
研究的目的:
- 用DNA原木种子来探索模板增长,以控制自我闭合组件中的多态性.
- 开发方法来创造精确定义的种子,具有特定的直径和螺旋性.
- 为了研究模板增长的条件,有利于目标几何形状,而不是自发核化.
主要方法:
- 利用多元组件组装和凝电泳/提取来创建DNA原木种子.
- 研究了种子和单体度以及组合温度对管道形成的影响.
- 分析了种子中的管体生长,以评估几何选择性和单分散性.
主要成果:
- 成功创建了具有定义直径和螺旋性的种子.
- 证明模板管道准确地复制了种子的几何形状,提高了选择性.
- 表明种子直径可以决定由此产生的单分散管道的直径.
- 确定了促进种子生长的条件,同时抑制自发核形成.
结论:
- 精确定义的种子有效地引导DNA原形自组装,显著减少多态性.
- 模板增长为生产统一的纳米结构提供了可控制和经济的方法.
- 这种方法使得使用单个单体类型可以模拟具有可调节直径的单分散管道.
相关概念视频
DNA as a Genetic Template
27.9K
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...
27.9K
DNA as a Genetic Template
9.6K
9.6K
Renal Tubule and Collecting Duct
3.6K
The renal tubule is divided into three parts: the proximal convoluted tubule (PCT), the Loop of Henle (LOH), and the distal convoluted tubule (DCT).
Proximal Convoluted Tubule (PCT):
The PCT is the initial segment of the renal tubule, extending from the Bowman's capsule that encloses the glomerulus. Its convoluted structure and microvilli-lined cells increase the surface area for reabsorption. The PCT reabsorbs glucose, amino acids, sodium, and water from the filtrate, ensuring essential...
Proximal Convoluted Tubule (PCT):
The PCT is the initial segment of the renal tubule, extending from the Bowman's capsule that encloses the glomerulus. Its convoluted structure and microvilli-lined cells increase the surface area for reabsorption. The PCT reabsorbs glucose, amino acids, sodium, and water from the filtrate, ensuring essential...
3.6K
Single Nucleotide Polymorphisms-SNPs
18.5K
A single nucleotide polymorphism or SNP is a single nucleotide variation at a specific genomic position in a large population. It is the most prevalent type of sequence variation found in the human genome. Point mutations that occur in more than 1% of the population qualify as SNPs. These are present once every 1000 nucleotides on an average in the human genome. Replacement of a purine with another purine (A/G) or a pyrimidine with another pyrimidine (C/T) is known as a transition. In contrast,...
18.5K
Protein Complex Assembly
16.9K
Proteins can form homomeric complexes with another unit of the same protein or heteromeric complexes with different types. Most protein complexes self-assemble spontaneously via ordered pathways, while some proteins need assembly factors that guide their proper assembly. Despite the crowded intracellular environment, proteins usually interact with their correct partners and form functional complexes.
Many viruses self-assemble into a fully functional unit using the infected host cell to...
Many viruses self-assemble into a fully functional unit using the infected host cell to...
16.9K
Factors Affecting Dissolution: Polymorphism, Amorphism and Pseudopolymorphism
749
Polymorphism refers to the existence of a drug substance in multiple crystalline forms, known as polymorphs. Recently, this term has been expanded to include solvates (forms containing a solvent), amorphous forms (non-crystalline forms), and desolvated solvates (forms from which the solvent has been removed).
Some polymorphic crystals possess lower aqueous solubility than their amorphous counterparts, leading to incomplete absorption. For instance, the oral suspension of Chloramphenicol, which...
Some polymorphic crystals possess lower aqueous solubility than their amorphous counterparts, leading to incomplete absorption. For instance, the oral suspension of Chloramphenicol, which...
749

