Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Colloids and Suspensions01:17

Colloids and Suspensions

1.8K
Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles visible to the naked eye or seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. The suspended particles in a suspension settle out after some time of mixing. The separation of particles from a suspension is...
1.8K
Colloids03:22

Colloids

17.5K
Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles that are visible to the naked eye or can be seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. On the other hand, a solution is a homogeneous mixture in which no settling occurs and in which the dissolved...
17.5K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Neighborhood economic and demographic landscape as predictors of 90-day outcomes post-stroke hospitalization.

Frontiers in stroke·2026
Same author

Surface energies in crystals of mutually polarizing dipolar particles.

The Journal of chemical physics·2026
Same author

Race and Ethnic Disparities in Rehabilitation Services and Functional Recovery After Stroke.

Archives of physical medicine and rehabilitation·2025
Same author

Identifying determinants of readmission and death post-stroke using explainable machine learning.

PloS one·2025
Same author

Acoustoplasmonic Metasurfaces Based on Polymer-Grafted Nanoparticles.

Nano letters·2025
Same author

Early hospital readmission following stroke: the Florida Stroke Registry.

Frontiers in stroke·2025

相关实验视频

Updated: Jul 1, 2025

Measurement of Particle Size Distribution in Turbid Solutions by Dynamic Light Scattering Microscopy
09:16

Measurement of Particle Size Distribution in Turbid Solutions by Dynamic Light Scattering Microscopy

Published on: January 9, 2017

14.4K

扩散波谱法测量体悬浮动力学

Kimberly A Dennis1, Qi Li1, Nicholas Sbalbi1

  • 1Department of Chemical and Biomolecular Engineering, Allan P. Colburn Laboratory, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United States.

Langmuir : the ACS journal of surfaces and colloids
|March 12, 2024
PubMed
概括
此摘要是机器生成的。

扩散波谱学有效地测量了二氧化粒子的动态,显示扩散性随着度的下降而下降. 这项研究强调了DWS.

更多相关视频

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures
10:56

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures

Published on: May 20, 2014

12.1K
Controlled Synthesis and Fluorescence Tracking of Highly Uniform PolyN-isopropylacrylamide Microgels
11:34

Controlled Synthesis and Fluorescence Tracking of Highly Uniform PolyN-isopropylacrylamide Microgels

Published on: September 8, 2016

10.3K

相关实验视频

Last Updated: Jul 1, 2025

Measurement of Particle Size Distribution in Turbid Solutions by Dynamic Light Scattering Microscopy
09:16

Measurement of Particle Size Distribution in Turbid Solutions by Dynamic Light Scattering Microscopy

Published on: January 9, 2017

14.4K
Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures
10:56

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures

Published on: May 20, 2014

12.1K
Controlled Synthesis and Fluorescence Tracking of Highly Uniform PolyN-isopropylacrylamide Microgels
11:34

Controlled Synthesis and Fluorescence Tracking of Highly Uniform PolyN-isopropylacrylamide Microgels

Published on: September 8, 2016

10.3K

科学领域:

  • 软物质物理学 软物质物理学
  • 结合体科学 结合体科学
  • 物理化学 物理化学

背景情况:

  • 了解粒子动力学对于软物质和体系统至关重要.
  • 扩散波谱 (DWS) 是一种强大的技术,用于探测不透明材料的动态.
  • 带电的二氧化颗粒是研究分散中的静电相互作用的模型系统.

研究的目的:

  • 通过使用DWS在一系列度范围内研究带电的二氧化粒子的短时间动态.
  • 为了确定静电排斥和水力动力相互作用对粒子扩散性的影响.
  • 评估DWS测量对合体系统中吸引相互作用的灵敏度.

主要方法:

  • 扩散波谱 (DWS) 测量是在充电的粒子悬浮物上进行的.
  • 颗粒度从0.065到0.352体积分 (12.7到55.8重量%) 变化.
  • 实验传播率数据与一个有效的硬球模型进行了比较,该模型包含静电排斥.

主要成果:

  • 随着粒子度的增加,短时间扩散率下降.
  • 一个有效的硬球模型准确地描述了高达0.352的有效体积分数的数据,排除了外半径比率b/a = 1.3.
  • 发现DWS测量对排斥力敏感,但对弱吸引力相互作用相对不敏感.

结论:

  • 该研究使用DWS.成功地描述了带电粒子的度依赖动力学.
  • 这些发现验证了有效的硬球模型的使用,用于描述合体系统中的排斥性相互作用.
  • DWS是研究排斥性相互作用的宝贵工具,但它对吸引力的敏感性需要仔细考虑.