Emulsion Designer Using Microfluidic Three-Dimensional Droplet Printing in Droplet
Emulsion Designer Using Microfluidic Three-Dimensional Droplet Printing in Droplet
复制标题
乳液设计师在液滴中使用微流控三维液滴打印
DOI：
10.1002/smll.202102579
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发表时间：
2021-08-12
期刊：
影响因子：
13.3
通讯作者：
Ye, Fangfu
中科院分区：
文献类型：
--
作者：
Chen, Li;Xiao, Yao;Ye, Fangfu
分层乳液在科学研究和实际应用中都很有意义。通过微流体制备的分级乳液需要复杂的装置几何形状和对流速的精细控制。在这里，开发了一种通用的方法来设计分层乳液，使用微流体3D液滴打印液滴。液滴打印的过程模拟了昆虫产卵的过程，具有加工容易、设计灵活等优点。为了证明该方法的能力，制备具有可调核数、核尺寸和核组成的双重乳液和三重乳液。这种分层乳液是开发功能材料的优良模板。然后使用在受限的2D空间中打印的双乳液作为模板制造扁平的新月形颗粒。这些颗粒是2D界面的优秀运载工具，可以在外部磁转向下通过明确的轨道装载和运输货物。液滴中的微流体3D液滴打印为分层乳液和功能材料的设计提供了一个强大的平台，具有更高的简单性和灵活性。
Hierarchical emulsions are interesting for both scientific researches and practical applications. Hierarchical emulsions prepared by microfluidics require complicated device geometry and delicate control of flow rates. Here, a versatile method is developed to design hierarchical emulsions using microfluidic 3D droplet printing in droplet. The process of droplet printing in droplet mimics the dragonfly laying eggs and has advantages of easy processing and flexible design. To demonstrate the capability of the method, double emulsions and triple emulsions with tunable core number, core size, and core composition are prepared. The hierarchical emulsions are excellent templates for the developments of functional materials. Flattened crescent-moon-shaped particles are then fabricated using double emulsions printed in confined 2D space as templates. The particles are excellent delivery vehicles for 2D interfaces, which can load and transport cargos through a well-defined trajectory under external magnetic steering. Microfluidic 3D droplet printing in droplet provides a powerful platform with improved simplicity and flexibility for the design of hierarchical emulsions and functional materials.