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The Colloidal State

The Colloidal State

The formation of a colloidal system is exemplified by an aqueous solution containing Cl− ions is introduced to another containing Ag+ ions, resulting in the precipitation of solid AgCl as extremely tiny crystals. Instead of settling out as a filterable precipitate, these crystals remain suspended in the liquid, showcasing a colloidal system.A colloidal system involves colloidal particles within the approximate range of 1 to 1000 nm in at least one dimension, dispersed in a medium called the...

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Updated: May 11, 2026

Capillary-based Centrifugal Microfluidic Device for Size-controllable Formation of Monodisperse Microdroplets

Capillary-based Centrifugal Microfluidic Device for Size-controllable Formation of Monodisperse Microdroplets

Published on: February 22, 2016

在非互惠的活跃滴滴系统中自我组织的模式.

Yutong Liu¹, R Kailasham^2,3, Pepijn G Moerman⁴

¹Department of Chemistry, The Pennsylvania State University, University Park, 16802, PA, USA.

Angewandte Chemie (International ed. in English)

|September 25, 2024

概括

具有捕食者-猎物动态的活跃的油-在-水滴自组织成多种不同的模式. 研究人员操纵参数以控制模式形成,在最小化学系统中展示可编程组织.

关键词:

活动物质活动物质结合体结合体结合体没有互惠的情况.模式形成的形成模式.自主组织自主组织.

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Published on: November 4, 2021

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Last Updated: May 11, 2026

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科学领域:

合体和表面科学科学
软物质物理学软物质物理学
化学工程是化学工程的重要组成部分.

背景情况:

非平衡模式在自然界中很常见,是由自我组织和化学反应驱动的.
活性合物,就像油中的水滴一样,由于内部驱动力和相互作用,表现出复杂的行为.

研究的目的:

研究活跃的油与水滴混合物中的自我组织的模式形成,以及捕食者与猎物的相互作用.
建立一个最小的计算模型,以化学反应和固体排斥为基础解释观察到的模式.
探索模式形成原理的延伸到更复杂的三元液滴系统.

主要方法:

在二进制混合物中对液滴直径比和数量比的实验操纵.
数字模拟包括化学反应相互作用和固体排斥.
对模式演变的分析,运动量化和化学解释.
在表面活性剂成分 (相互作用强度) 发生变化的情况下,对模式变化的研究.

主要成果:

在二进制滴滴系统中确定了不同类别的自我组织模式.
通过使用最小的计算模型,成功地回顾了实验模式.
在三元液滴混合物中展示了化学指导的层次组织.
在化学最小化系统中展示了可编程模式的形成.

结论:

可合理化,自我组织的模式可以被编程到活跃的体系统中.
这项研究为探索活性合体中新出现的组织和复杂性的研究提供了基础.
在非平衡系统中,化学定向的相互作用是控制自我组装的关键.