An electrothermal platform for active droplet manipulation

Liu, Yahua; Xia, Yuhang; Zhan, Haiyang; Lu, Chenguang; Yuan, Zichao; Zhao, Lei

doi:10.1039/d3ra01108a

Cited by 1 publication

(1 citation statement)

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“…37 Based on the best parameter combination discussed above, θ a = 10°and h = 1 mm were chosen to show the surface cleaning superiority of SLIPS with wedge-shaped grooves. As branched structures can aggregate droplets rapidly, 23,38 functional SLIPS with primary and secondary branching wedge-shaped grooves for surface cleaning and droplet collection were created, where droplets of 1 mL were placed on secondary branches. It can be seen from Figure 6a that droplets successfully converge from the branches to the main road when droplets impact under a condition that is suitable for using θ a = 10°and h = 1 mm in Figure 5a.…”

Section: Resultsmentioning

confidence: 99%

Controllable self‐transport of bouncing droplets on ultraslippery surfaces with wedge‐shaped grooves

Yue,

Dai,

Yang

et al. 2024

Droplet

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Preventing the accretion of droplets on surfaces is vital and slippery liquid‐infused porous surfaces (SLIPS) have promising application prospects, such as surface self‐cleaning and droplet transportation. In this work, controllable self‐transport of bouncing droplets on ultraslippery surfaces with wedge‐shaped grooves is reported. The impact behaviors of droplets on SLIPS under various impact velocities and diameters are explored, which can be classified as hover, total bounce, partial bounce, Worthington jet, and crush. SLIPS with wedge‐shaped grooves were designed to transport accreted droplets. An energy and transport model is established to explain the impact and self‐transport mechanism, where the Laplace pressure and moving resistance between droplets play a key role. Finally, SLIPS with branched wedge‐shaped grooves were designed for droplet self‐transport and demonstrated advantages. This work provides a general reference for spontaneous motion control of sessile droplets, droplets with initial impacting velocity, or even liquid films.

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Section: Resultsmentioning

confidence: 99%