相关实验视频

Updated: May 30, 2025

Folding and Characterization of a Bio-responsive Robot from DNA Origami

Folding and Characterization of a Bio-responsive Robot from DNA Origami

Published on: December 3, 2015

折叠和功能化DNA原形:一种使用反应性聚胺的多功能方法

Alejandro Postigo¹, Carlos Marcuello^1,2, William Verstraeten^3,4

¹Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Ed. I+D+i. Mariano Esquillor, Zaragoza 50018, Spain.

Journal of the American Chemical Society

|January 27, 2025

概括

这项研究引入了一种使用含有亚的多胺基的DNA纳米结构功能化的新方法. 这种DNA纳米技术方法可以通过高效的化学定制,为各种应用提供量身定制的特性.

科学领域:

生物技术
材料科学
纳米技术

背景情况:

通过自组装,DNA纳米技术可以创建复杂的纳米结构.
化学修饰对于为特定应用量身定制DNA纳米结构至关重要.

研究的目的:

开发一种用于指导DNA纳米结构的组装和功能化的新方法.
使用含有亚的功能性聚胺来有效地化工装饰DNA原形.

主要方法:

使用聚氨酸,辅助折叠基架DNA原形纳米结构与反应性亚基.
通过应变促进的亚酸循环添加,以使含有二环氧的分子具有功能.
加入一个基 (Cy5),聚乙烯甘醇 (PEG) 和一种疏水性酸乙烯胺 (PE) 标签.

主要成果:

通过聚胺辅助成功折叠化基因原形.
用Cy5,PEG和PE标签展示了DNA原型的装饰.
建立了一个用于化学定制DNA纳米结构的多功能平台.

结论:

开发的方法简化并降低了DNA纳米结构的化学定制成本.
这种方法提高了DNA原型的多功能性和适用性.
在DNA纳米技术中开辟了精确功能化的新途径.

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Gene-therapy Inspired Polycation Coating for Protection of DNA Origami Nanostructures

Gene-therapy Inspired Polycation Coating for Protection of DNA Origami Nanostructures

Published on: January 19, 2019

DNA Origami-Mediated Substrate Nanopatterning of Inorganic Structures for Sensing Applications

DNA Origami-Mediated Substrate Nanopatterning of Inorganic Structures for Sensing Applications

Published on: September 27, 2019

相关概念视频

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...

Phosphodiester Linkages

Phosphodiester Linkages

Overview
Phosphodiester bond forms when a phosphoric acid molecule (H3PO4) links with two hydroxyl groups (–OH) of two other molecules, forming two ester bonds. Two water molecules are released in this process. The phosphodiester bond is commonly found in nucleic acids (DNA and RNA) and plays a critical role in their structure and function.
Phosphodiester Bonds Link Nucleotides Together
DNA and RNA are polynucleotides or long chains of nucleotides that are linked together. A nucleotide is...