表面活性剂组件指导对流马兰戈尼流泵的化学传递级联

IF 4.4 3区 材料科学 Q2 CHEMISTRY, MULTIDISCIPLINARY
Dimitrios Karagrigoriou, Peter A. Korevaar
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引用次数: 0

摘要

对流马兰戈尼流泵可以驱动微流体装置中的液体流,并允许静态通道布局被液相中出现的“虚拟”边界所取代。然而,虽然通过对所涉及的表面张力梯度的物理化学控制可以很容易地改变从位置A→位置B的转移,但建立化学转移级联仍然是一个挑战,这是更复杂的可重构液体系统的先决条件。本文提出了一种自底向上的方法,用于对流Marangoni流动泵,将线性两亲体自组装成髓鞘丝,油微滴的乳化和空气/水界面下Marangoni回流的发生结合起来。该系统允许在位于空气/水界面的液滴之间通过多个步骤进行化学转移。这一概念为设计可控表面张力梯度和触发释放乳化微滴提供了工具箱,这些微滴作为化学信号载体,沿着Marangoni流动模式在可重构全液体微流体中出现。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Surfactant Assemblies Directing Chemical Transfer Cascades in Convective Marangoni Flow Pumps

Surfactant Assemblies Directing Chemical Transfer Cascades in Convective Marangoni Flow Pumps

Convective Marangoni flow pumps can drive liquid streams in microfluidic devices and allow static channel layouts to be replaced by “virtual” boundaries that emerge in the liquid phase. However, while transfer from location A → location B can be modified easily via physicochemical control over the surface tension gradients involved, it remains a challenge to establish chemical transfer cascades A → B → C, which is prerequisite to more complex reconfigurable liquid systems. Here, a bottom-up approach is presented for convective Marangoni flow pumps, combining the self-assembly of a linear amphiphile into myelin filaments with the emulsification of oil microdroplets and the occurrence of Marangoni backflows underneath the air/water interface. The system allows chemical transfer over multiple steps amongst droplets that are positioned at the air/water interface. This concept provides a toolbox for the design of controllable surface tension gradients and triggered release of emulsified microdroplets as chemical signal carriers that travel along Marangoni flow patterns emerging in reconfigurable all-in-liquid microfluidics.

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来源期刊
Advanced Materials Interfaces
Advanced Materials Interfaces CHEMISTRY, MULTIDISCIPLINARY-MATERIALS SCIENCE, MULTIDISCIPLINARY
CiteScore
8.40
自引率
5.60%
发文量
1174
审稿时长
1.3 months
期刊介绍: Advanced Materials Interfaces publishes top-level research on interface technologies and effects. Considering any interface formed between solids, liquids, and gases, the journal ensures an interdisciplinary blend of physics, chemistry, materials science, and life sciences. Advanced Materials Interfaces was launched in 2014 and received an Impact Factor of 4.834 in 2018. The scope of Advanced Materials Interfaces is dedicated to interfaces and surfaces that play an essential role in virtually all materials and devices. Physics, chemistry, materials science and life sciences blend to encourage new, cross-pollinating ideas, which will drive forward our understanding of the processes at the interface. Advanced Materials Interfaces covers all topics in interface-related research: Oil / water separation, Applications of nanostructured materials, 2D materials and heterostructures, Surfaces and interfaces in organic electronic devices, Catalysis and membranes, Self-assembly and nanopatterned surfaces, Composite and coating materials, Biointerfaces for technical and medical applications. Advanced Materials Interfaces provides a forum for topics on surface and interface science with a wide choice of formats: Reviews, Full Papers, and Communications, as well as Progress Reports and Research News.
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