相关实验视频

Updated: Jun 4, 2025

A Paired Bead and Magnet Array for Molding Microwells with Variable Concave Geometries

A Paired Bead and Magnet Array for Molding Microwells with Variable Concave Geometries

Published on: January 28, 2018

由磁化珠子聚合而形成的双极凝

A Wafflard¹, E Opsomer¹, N Vandewalle¹

¹GRASP, Institute of Physics B5a, <a href="https://ror.org/00afp2z80">University of Liège</a>, B4000 Liège, Belgium.

Physical review. E

|December 18, 2024

概括

磁化粒子聚合形成复杂的结构. 在狭窄的二维系统中,这些粒子从链条过渡到类似凝的状态,然后随着密度的增加而转变为有序晶体.

科学领域:

物理物理学物理
材料科学材料科学材料科学
软物质物理学软物质物理学

背景情况:

二极粒子,就像磁化珠子一样,在失去平衡时,自组成各种结构 (链条,循环,带).
了解粒子聚合对于设计新材料和理解自然现象至关重要.

研究的目的:

为了研究二极粒子聚合物的结构演变在狭窄的二维环境中.
为了确定关键的结构过渡作为粒子包装分量的函数.

主要方法:

使用数值模拟来建模聚合过程.
该研究分析了系统在一系列包装分数 (φ) 的行为.

主要成果:

观察到透值 (φp ≈ 0.15),标志着链状结构合并为单一的多孔聚合物.
在较高的包装分数下,凝状结构变密.
具有方形和六角对称性的有序晶体在高密度下出现,尽管它们并不跨越整个系统.

结论:

包装分数是一个关键参数,控制着二极粒子在2D系统中的聚合状态.
该研究揭示了不同的结构阶段:透,凝和结晶,每一个都有独特的特征.

更多相关视频

Alternating Magnetic Field-Responsive Hybrid Gelatin Microgels for Controlled Drug Release

Alternating Magnetic Field-Responsive Hybrid Gelatin Microgels for Controlled Drug Release

Published on: February 13, 2016

Magnetic and Thermal-sensitive PolyN-isopropylacrylamide-based Microgels for Magnetically Triggered Controlled Release

Magnetic and Thermal-sensitive PolyN-isopropylacrylamide-based Microgels for Magnetically Triggered Controlled Release

Published on: July 4, 2017

相关概念视频

DNA Agarose Gel Electrophoresis

DNA Agarose Gel Electrophoresis

Agarose gel electrophoresis is a laboratory technique commonly used to separate DNA fragments by size. However, it can also be used to isolate and purify DNA fragments using a gel extraction protocol.
Gel extraction follows five major steps: running gel electrophoresis to separate fragments, isolating the individual bands, extracting DNA from those bands, and removing the dye and salts from the extracted mixture to obtain pure DNA.
In cloning experiments, both the insert and vector DNA...