Evaporation of saline colloidal droplet and deposition pattern<xref rid="cpb_29_1_014701fn1" ref-type="fn">*</xref><fn id="cpb_29_1_014701fn1"><label>*</label><p>Project supported by the National Natural Science Foundation of China (Grant Nos. 11472275 and U1738118), the Chinese Academy of Sciences Key Technology Talent Program, and the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB22040301).</p></fn>

Evaporation of saline colloidal droplet and deposition pattern**

Project supported by the National Natural Science Foundation of China (Grant Nos. 11472275 and U1738118), the Chinese Academy of Sciences Key Technology Talent Program, and the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB22040301).

Sun Hong-Hui^{1, 3}, Li Wei-Bin^{1, 3}, Ji Wen-Jie^{1, 2}, Dai Guo-Liang^{1, 3}, Huan Yong^{2, 3}, Wang Yu-Ren^{1, 3}, Lan Ding^{1, 3, †}

(a)–(i) Drying process on the periphery of a blended droplet (ω(PS) = 0.1%, ω(NaCl) = 0.9%): (a)–(c) assembling of particles on contact line of droplet; (d) initiation of vortex; (e) all particles settled on substrate; (f) crystallization of NaCl; (g)–(h) rupture of thin liquid film and small liquid pools formation; (i) total desiccation of droplet; (j) full view of final transverse deposition. Scale bar is 100 µm.