相关实验视频
Updated: Jul 12, 2026
13:32
Designing a Bio-responsive Robot from DNA Origami
Published on: July 8, 2013
一个DNA机器人手臂的操作被插入到2DDNA晶体基板中
Baoquan Ding1, Nadrian C Seeman
1Department of Chemistry, New York University, New York, NY 10003, USA.
Science (New York, N.Y.)
|December 13, 2006
概括
研究人员开发了一种DNA磁带,用于精确地将纳米机器人放置和操作在DNA阵列中. 这一进步使功能性纳米机械设备能够在固定的参考框架内运行.
科学领域:
- 纳米技术纳米技术
- 分子工程分子工程分子工程
- 生物物理学的生物物理.
背景情况:
- 纳米机械设备的精确放置和操作对于纳米机器人至关重要.
- DNA的结构可编程性为创建纳米机器人提供了一个有前途的平台.
研究的目的:
- 开发一种DNA磁带,用于在二维DNA阵列中集成和操作纳米机械设备.
- 为了展示DNA机器人手臂在放置后的功能.
主要方法:
- 开发一个含有纳米机器人装置,附着部位和状态记者的DNA磁带.
- 使用原子力显微镜 (AFM) 来验证设备的功能和放置.
主要成果:
- 一个强大的,依赖序列的DNA机器人臂成功集成到一个二维晶体DNA阵列中.
- 使用AFM展示旋转装置在插入后的全部功能.
结论:
- 一个DNA磁带系统可以在固定的参考框架内精确地放置和操作纳米机械设备.
- 这项工作推进了基于DNA的纳米机器人和可编程分子机器的领域.
相关概念视频
01:16The DNA Helix
Overview
01:16The DNA Helix
Overview
02:05DNA as a Genetic Template
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...
02:57DNA-only Transposons
DNA-only transposons are called autonomous transposons since they code for the enzyme transposase that is required for the transposition mechanism. Insertion of transposons can alter gene functions in multiple ways. They can mutate the gene, alter gene expression by introducing a novel promoter or insulator sequence, introduce new splice sites, and change the mRNA transcripts produced, or remodel chromatin structure.
The donor site from where the transposon is excised is either degraded or...
The donor site from where the transposon is excised is either degraded or...
01:07The DNA Helix
Deoxyribonucleic acid, or DNA, is the genetic material responsible for passing traits from generation to generation in all organisms and most viruses. DNA is composed of two strands of nucleotides that wind around each other to form a spring-like structure called a double helix. However, the double helix is not perfectly symmetrical. Instead, there are regularly occurring grooves in the structure. The major groove occurs where the sugar-phosphate backbones are relatively far apart. This space...
02:05DNA as a Genetic Template
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...