Material assembly by droplet drying: From mechanics theories to applications
Material assembly by droplet drying: From mechanics theories to applications
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DOI：
10.1002/dro2.76
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发表时间：
2023-08
期刊：
影响因子：
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通讯作者：
Ziyu Chen;Kangyi Peng;Baoxing Xu
中科院分区：
文献类型：
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作者：
Ziyu Chen;Kangyi Peng;Baoxing Xu
由不溶性材料组成的液滴的蒸发为组装材料和结构提供了一种低成本和简便的途径，具有广泛的功能，可达纳米级，也是创新基于油墨溶液的未来制造技术的基础。本文综述了液滴干燥在固体和液体基底上以及在完全悬浮的空气环境中进行材料组装的基本力学理论。研究了液滴干燥过程中的组装模式、材料变形和液体流动的演变及其对溶液表面活性剂和pH值、表面几何图案和润湿性、干燥温度、压力环境等外部刺激的响应，的电场作用，阐明了固体材料和液体溶液之间的耦合机制，以及通过主动或被动手段。还介绍了油墨印刷技术的最新进展，并选择了一些例子来说明液滴干燥的直接应用，重点是印刷电子传感器和生物医学设备。讨论了剩余的挑战和新出现的机会。
Evaporation of droplets composed of insoluble materials provides a low‐cost and facile route for assembling materials and structures in a wide spectrum of functionalities down to the nanoscale and also serves as a basis for innovating ink‐solution‐based future manufacturing technologies. This review summarizes the fundamental mechanics theories of material assembly by droplet drying both on solid and liquid substrates and in a fully suspended air environment. The evolution of assembly patterns, material deformation, and liquid flow during droplet drying and its response to external stimuli ranging from solution surfactant and pH value, surface geometric pattern and wettability, drying temperature, pressure environment, to electrical field have been highlighted to elucidate the coupling mechanisms between solid materials and liquid solutions and the manipulation strategies for material assembly through an either active or passive means. The recent progresses in ink‐based printing technologies with selected examples are also presented to illustrate the immediate applications of droplet drying, with a focus on printing electronic sensors and biomedical devices. The remaining challenges and emerging opportunities are discussed.