Kumar P Logesh, Mondal Ranajit, Thampi Sumesh P, Basavaraj Madivala G
Polymer Engineering and Colloid Science Laboratory, Department of Chemical Engineering , Indian Institute of Technology Madras , Chennai 600036 , Tamil Nadu , India.
Langmuir. 2019 Jul 30;35(30):9991-9993. doi: 10.1021/acs.langmuir.9b02139. Epub 2019 Jul 19.
Hodges and Tangparitkul (Hodges, C. S.; Tangparitkul, S. M. , , doi: 10.1021/acs.langmuir.9b01442) in their Comment on "Patterns in Drying Drops Dictated by Curvature Driven Particle Transport" argue that the coffee-eye deposits in dried pendant drops can also be formed if the particles or particle clusters in the drying drop are large enough to sediment during the course of evaporation. In our reply to this comment, we compare these two different mechanisms, namely, gravity settling and curvature-driven interfacial migration of particles in the drying particle-laden drops, with an aim towards placing them in a correct perspective.
霍奇斯和唐帕里特库尔(霍奇斯,C.S.;唐帕里特库尔,S.M.,doi:10.1021/acs.langmuir.9b01442)在他们对“曲率驱动颗粒输运决定的干滴模式”的评论中指出,如果干滴中的颗粒或颗粒团足够大,能够在蒸发过程中沉降,那么干燥悬垂液滴中的咖啡环沉积物也可以形成。在我们对这条评论的回复中,我们比较了这两种不同的机制,即在含颗粒的干燥液滴中颗粒的重力沉降和曲率驱动的界面迁移,目的是正确地看待它们。