相关实验视频

Updated: Aug 18, 2026

Taking Advantage of Reduced Droplet-surface Interaction to Optimize Transport of Bioanalytes in Digital Microfluidics

Taking Advantage of Reduced Droplet-surface Interaction to Optimize Transport of Bioanalytes in Digital Microfluidics

Published on: November 10, 2014

在宏分子溶液中活滴的模式切换

Prateek Dwivedi¹, Atishay Shrivastava¹, Dipin Pillai¹

¹Department of Chemical Engineering, Indian Institute of Technology Kanpur, PIN-370210 Kanpur, Uttar Pradesh, India. mangalr@iitk.ac.in.

|May 26, 2023

概括

由小粒驱动的活滴在聚合物溶液中表现出复杂的运动. 大分子显著改变滴滴动力学,使得对推进和拉动等推进模式的控制成为新的应用.

科学领域:

软物质物理学软物质物理学
流体动力学流体动力学
生物物理学的生物物理.

背景情况:

生物游泳者在含有宏分子的复杂液体中进行导航.
活跃滴滴可以作为模型系统来研究运动策略.
了解非牛顿流体中的滴滴行为至关重要.

研究的目的:

在聚合物溶液中研究活性油滴运动.
分析大分子溶液对滴滴推进的作用.
探索新的方法来控制活跃滴滴动态.

主要方法:

微粒溶解驱动的活跃油滴实验.
在现场可视化自我生成的化学场.
粒子图像速度计 (PIV) 用于流场分析.

主要成果:

滴滴运动对宏分子溶液高度敏感.
在聚合物中观察到出乎意料的高微粒扩散性.
佩克莱特号与推进模式转换 (平滑到动) 相对应.
切换从推向器到拉向器推进模式,并增加聚合物度.

结论:

连续性近似因溶解物和粒之间的尺寸差异而崩.
佩克莱特号有效预测推进方式的变化.
宏分子兴奋剂提供了一种新的策略来控制活跃滴滴推进.

更多相关视频

A Femtoliter Droplet Array for Massively Parallel Protein Synthesis from Single DNA Molecules

A Femtoliter Droplet Array for Massively Parallel Protein Synthesis from Single DNA Molecules

Published on: June 20, 2020

Synthesis and Characterization of Multi-Modal Phase-Change Porphyrin Droplets

Synthesis and Characterization of Multi-Modal Phase-Change Porphyrin Droplets

Published on: October 15, 2021

相关概念视频

Membrane Fluidity

Membrane Fluidity

Membrane fluidity is explained by the fluid mosaic model of the cell membrane, which describes the plasma membrane structure as a mosaic of components—including phospholipids, cholesterol, proteins, and carbohydrates—that gives the membrane a fluid character.
Mosaic nature of the membrane
The mosaic characteristic of the membrane helps the plasma membrane remain fluid. The integral proteins and lipids exist as separate but loosely-attached molecules in the membrane. The membrane is a relatively...