相关实验视频

Updated: Apr 30, 2026

Synthesis of Single-Crystalline Core-Shell Metal-Organic Frameworks

Synthesis of Single-Crystalline Core-Shell Metal-Organic Frameworks

Published on: February 10, 2023

核酸金属有机框架 (MOF) 纳米颗粒结合物

William Morris¹, William E Briley, Evelyn Auyeung

¹Department of Chemistry and International Institute for Nanotechnology, Northwestern University , 2145 Sheridan Road, Evanston, Illinois 60208, United States.

Journal of the American Chemical Society

|May 14, 2014

概括

研究人员创造了与DNA功能化的新型金属有机框架 (MOF) 纳米粒子. 这些MOF-核酸结合物显示出更好的稳定性和细胞吸收,推进纳米粒子应用.

科学领域:

材料科学材料科学材料科学
纳米技术纳米技术
生物结合化学生物结合化学

背景情况:

金属有机框架 (MOF) 具有可调节的特性,但通常需要对特定应用进行表面修改.
核酸 (DNA) 是多功能分子,可用于有针对性的输送和生物结合.
开发稳定和有效的MOF-纳米粒子结合物对于先进的生物医学应用至关重要.

研究的目的:

为了合成和表征DNA功能化的MOF纳米粒子.
研究这些新型结合物的稳定性和细胞吸收.
建立一种创建MOF纳米粒子-核酸合物的方法.

主要方法:

合成UiO-66-N3 (一种基于的MOF) 纳米粒子.
MOF纳米颗粒的表面功能化与亚基组.
应变促进的点击化学用于二基环氧基因附着DNA的共价附着.
描述MOF结构和DNA表面覆盖的特征.
评估纳米颗粒在水性NaCl中的稳定性和细胞吸收研究.

主要成果:

成功合成了UiO-66-N3 MOF纳米粒子.
通过点击化学创建了第一个MOF纳米粒子-核酸结合体.
在功能化过程中保留了MOF结构.
在功能化颗粒中,在水性NaCl中表现出增强的稳定性.
与未经修改的MOF纳米颗粒相比,观察到DNA功能化的MOF纳米颗粒的细胞吸收增加.

结论:

开发的方法可以创建稳定的MOF纳米粒子-核酸合物.
表面功能化增强了MOF纳米粒子的稳定性和细胞吸收.
这些发现为MOF在纳米医学和有针对性的输送中的应用开辟了新的途径.

更多相关视频

Author Spotlight: Exploring Self-Assembled MOF-Polymer Composites

Author Spotlight: Exploring Self-Assembled MOF-Polymer Composites

Published on: June 14, 2024

Author Spotlight: Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers

Author Spotlight: Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers

Published on: May 12, 2023

相关概念视频

Metal-Ligand Bonds

Metal-Ligand Bonds

The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...

Conjugated Proteins

Conjugated Proteins

Simple proteins and protein complexes contain only amino acids. In contrast, many other proteins, called conjugated proteins, covalently bond with non-protein moieties.
Nucleoproteins are protein complexes that contain nucleic acids, categorized as deoxyribonucleoproteins (DNPs) or ribonucleoproteins (RNPs) respectively. The nucleosome is a typical example of a DNP where nuclear DNA is associated with histone proteins. The major antigen for the Covid-19 virus SARS-CoV is an RNP that is critical...

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...