在毛发凝中的多电解质圆柱形刷子
Ekaterina B Zhulina1, Oleg V Borisov1,2
1Institute of Macromolecular Compounds of the Russian Academy of Sciences, 199004 St. Petersburg, Russia.
Polymers
|August 12, 2023
概括
我们研究了聚合物装饰的纳米棒,并发现聚合物溶解度的变化会引发它们分散的不稳定性. 这项研究有助于了解如何控制溶液中的纳米粒子稳定性.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 体科学 体科学 体科学
背景情况:
- 对纳米材料来说,分散稳定性至关重要.
- 纳米棒上的聚电解质 (PE) 刷子会影响它们的溶液行为.
- 可调整的聚合物溶解度会影响热力学稳定性.
研究的目的:
- 研究影响聚合物装饰纳米棒分散稳定的因素.
- 了解聚电解质刷溶解在纳米聚合物聚合中的作用.
- 分析热诱导和脱离离子诱导的形状转换.
主要方法:
- 在硬的脊椎上使用多电解质刷的理论建模.
- 对聚合物装饰的纳米棒进行实验研究,具有可调节的PE链溶解度.
- 对形状转变和分散稳定性的分析.
主要成果:
- PE链的可调节溶解度显著影响了纳米分散的热力学稳定性.
- 热诱导和脱离离子诱导的形状转换导致聚合分散稳定性的丧失.
- 纳米棒上的弱电离的多离子对这些过渡很容易受到影响.
结论:
- 这项研究为合理化和解释关于纳米散稳定的实验观测提供了一个框架.
- 了解这些转变是控制纳米粒子组装和应用的关键.
- 理论预测与实验发现一致,使半量化解释成为可能.
更多相关视频
08:48Polyacrylamide Gels for Invadopodia and Traction Force Assays on Cancer Cells
Published on: January 4, 2015
12.1K
12:07Fabricating Degradable Thermoresponsive Hydrogels on Multiple Length Scales via Reactive Extrusion, Microfluidics, Self-assembly, and Electrospinning
Published on: April 16, 2018
13.5K
相关概念视频
SDS-PAGE
28.4K
Gel electrophoresis is a method that separates biological macromolecules like nucleic acids or proteins by forcing them to pass through a gel matrix under an electric field.
A variation of gel electrophoresis, termed polyacrylamide gel electrophoresis (PAGE), is commonly used for separating proteins according to their molecular size by passing them through a polyacrylamide gel. Because of the varying charges associated with amino acid side chains, PAGE can be used to separate intact...
A variation of gel electrophoresis, termed polyacrylamide gel electrophoresis (PAGE), is commonly used for separating proteins according to their molecular size by passing them through a polyacrylamide gel. Because of the varying charges associated with amino acid side chains, PAGE can be used to separate intact...
28.4K
Two-dimensional Gel Electrophoresis
6.1K
Two-dimensional gel electrophoresis is a high-resolution protein separation method first introduced by O' Farrell and Klose in 1975. This method involves protein separation by two dimensions, mass and charge, making it more accurate than one-dimensional gel electrophoresis.
The first dimension separation uses the isoelectric focusing or IEF technique performed on immobilized pH gradient (IPG) strips that separate proteins according to their isoelectric points.
Biological samples, such...
The first dimension separation uses the isoelectric focusing or IEF technique performed on immobilized pH gradient (IPG) strips that separate proteins according to their isoelectric points.
Biological samples, such...
6.1K
Electrophoresis: Overview
2.1K
Electrophoresis is a powerful analytical separation technique that relies on the differential migration of charged species when subjected to an electric field. The core strength of electrophoresis lies in its ability to separate high-molecular-weight species in complex mixtures. It has found widespread use in biochemistry, molecular biology, and analytical chemistry, allowing the separation of compounds like amino acids, nucleotides, carbohydrates, and proteins with excellent resolution.
There...
There...
2.1K
