Department of Chemical Engineering and Center for Soft and Biological Matter, Indian Institute of Technology Madras, Chennai, India; email:
Annu Rev Chem Biomol Eng. 2023 Jun 8;14:53-83. doi: 10.1146/annurev-chembioeng-101121-085056. Epub 2023 Mar 14.
Drying drops of colloidal dispersions have attracted attention from researchers since the nineteenth century. The multiscale nature of the problem involving physics at different scales, namely colloidal and interfacial phenomena as well as heat, mass, and momentum transport processes, combined with the seemingly simple yet nontrivial shape of the drops makes drying drop problems rich and interesting. The scope of such studies widens as the physical and chemical nature of dispersed entities in the drop vary and as evaporation occurs in more complex configurations. This review summarizes past and contemporary developments in the field, emphasizing the physicochemical and hydrodynamical principles that govern the processes occurring within a drying drop and the resulting variety of patterns generated on the substrate.
自 19 世纪以来，胶体分散液的干燥液滴就引起了研究人员的关注。涉及不同尺度物理现象的多尺度特性，即胶体和界面现象以及热、质量和动量传输过程，再加上液滴看似简单但又非平凡的形状，使得干燥液滴问题变得丰富而有趣。随着液滴中分散实体的物理和化学性质的变化以及在更复杂的配置中发生蒸发，此类研究的范围不断扩大。本文综述了该领域过去和现在的发展，强调了控制干燥液滴内发生的过程以及在基底上产生的各种图案的物理化学和流体动力学原理。
