journal article·2025-02Open access

Robust air pocket stability of various liquids droplet on micro cavity structures

Myung Seo Kim, Seungmin Oh, Woo Young Kim, Seo Rim Park, Seo Na Yoon, Su Hyun Choi, Seungwoo Shin, Sin Kwon, Kyoohee Woo, Seok Kim, Young Tae Cho

Abstract

• Evaluation of textured omniphobic surfaces to control droplet wetting. • Microstructural arrays patterned on a polymer using UV nanoimprint lithography. • Comparison of micropillar, microcavity, and combined hierarchical structures. • Surface tension and viscosity affect contact angles on microstructured surfaces. • Microcavity structure prevents surface wetting with low-surface-tension liquids. Surface texturing is carried out to realize a robust liquid-repellent surface, that is, a surface with a high contact angle for various liquids. Surfaces with an array of micropillars, microcavities, or a hierarchical structure composed of micropillars and microcavities were fabricated, and their wetting behaviors were evaluated. The microstructural arrays were fabricated on a flexible polymer substrate using ultraviolet nanoimprint lithography and contact angles of liquids with different surface tensions were measured and compared. Furthermore, the long-term liquid repellency of the developed surfaces was evaluated by measuring static and dynamic contact angles. The results revealed that the microcavity structure is suitable for preventing the wetting of the surface with low-surface-tension liquids, such as hexane and silicone oil. Unlike the pillar array, the microcavity structure prevented the wetting of the surface with such liquids.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Surface Modification and Superhydrophobicity · Nanomaterials and Printing Technologies · Fluid Dynamics and Heat Transfer

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (48)

Show source-provided references
1. Resistance of solid surfaces to wetting by water10.1021/ie50320a024 ↗
2. An experimental study of some effects of solid surface roughness on wetting10.1016/0166-6622(80)80039-4 ↗
3. The influence of solid–liquid interactions on dynamic wetting10.1016/S0001-8686(01)00073-2 ↗
4. New insights into the prediction of adaptive wetting of a solid surface under a liquid medium10.1016/j.apsusc.2020.147444 ↗
5. The wetting of steel, DLC coatings, ceramics and polymers with oils and water: the importance and correlations of surface energy, surface tension, contact angle and spreading10.1016/j.apsusc.2013.12.109 ↗
6. Progress in understanding wetting transitions on rough surfaces10.1016/j.cis.2014.02.009 ↗
7. Wettability versus roughness of engineering surfaces10.1016/j.wear.2010.03.029 ↗
8. Surface engineering and microtribology for microelectromechanical systems10.1016/S0043-1648(96)07328-0 ↗
9. Bio-inspired extreme wetting surfaces for biomedical applications10.3390/ma9020116 ↗
10. Tailoring materials with specific wettability in biomedical engineering10.1002/advs.202100126 ↗
11. Mimicking nature to control bio-material surface wetting and adhesion10.1080/09506608.2021.1995112 ↗
12. Recent progress in bio-inspired macrostructure array materials with special wettability− from surface engineering to functional applications
13. Environmental applications of interfacial materials with special wettability10.1021/acs.est.5b04351 ↗
14. A review of icing prevention in photovoltaic devices by surface engineering10.1016/j.rser.2014.01.015 ↗
15. Smooth, all-solid, low-hysteresis, omniphobic surfaces with enhanced mechanical durability10.1021/acsami.8b00521 ↗
16. Hard transparent nanogradient coating for ultradurable omniphobic liquid-like surface
17. Implementation of a large-area slippery surface using a transparent organogel
18. Surface engineering for anti-fingerprint applications10.1080/02670844.2022.2131043 ↗
19. Spray-on omniphobic ZnO coatings10.1039/C5RA11178A ↗
20. Robust omniphobic surfaces10.1073/pnas.0804872105 ↗
21. Tulip-shaped pattern imprinting for omni-phobic surfaces using partially cured photopolymer10.3390/app11041747 ↗
22. Superomniphobic surfaces: Design and durability10.1557/mrs.2013.101 ↗
23. Hierarchical micro and nano structured, hydrophilic, superhydrophobic and superoleophobic surfaces incorporated in microfluidics, microarrays and lab on chip microsystems10.1016/j.mee.2014.10.002 ↗
24. Microstructured surfaces for reducing chances of fomite transmission via virus-containing respiratory droplets10.1021/acsnano.1c01636 ↗
25. A cellulose based hydrophilic, oleophobic hydrated filter for water/oil separation10.1039/C4CC04817B ↗
26. Perfluorinated compounds in food: A global perspective10.1080/10408391003721727 ↗
27. Mechanically durable superhydrophobic surfaces10.1002/adma.201003129 ↗
28. Transparent, thermally stable and mechanically robust superhydrophobic surfaces made from porous silica capsules10.1002/adma.201100410 ↗
29. Effects of surface structure on the hydrophobicity and sliding behavior of water droplets10.1021/la020088p ↗
30. Shape-deformed mushroom-like reentrant structures for robust liquid-repellent surfaces10.1021/acsami.1c06286 ↗
31. Durable Lotus-effect surfaces with hierarchical structure using micro-and nanosized hydrophobic silica particles10.1016/j.jcis.2011.09.049 ↗
32. Multifunctional microcavity surfaces for robust capture and direct rapid sampling of concentrated analytes10.1002/sstr.202300400 ↗
33. An essay on the cohesion of fluids10.1098/rstl.1805.0005 ↗
34. Questions and answers on the wettability of nano‐engineered surfaces10.1002/admi.201700381 ↗
35. Recent progress in the preparation, properties and applications of superhydrophobic nano-based coatings and surfaces: a review10.1016/j.porgcoat.2019.03.042 ↗
36. Wettability and applications of nanochannels
37. An experimental study of surface wettability effects on dynamic ice accretion process over an UAS propeller model, Aerospace
38. Surface wettability for skin‐interfaced sensors and devices
39. From micro to nano reentrant structures: hysteresis on superomniphobic surfaces10.1007/s00396-012-2750-7 ↗
40. Robust superomniphobic surfaces with mushroom-like micropillar arrays10.1039/c2sm25879j ↗
41. The design and applications of superomniphobic surfaces10.1038/am.2014.34 ↗
42. Wetting transition from the Cassie–Baxter state to the Wenzel state on textured polymer surfaces10.1021/la4049067 ↗
43. Long‐term immersion study for durability of interconnected micropatterned surfaces with sustained water repellency
44. Wetting transition from the Cassie–Baxter state to the Wenzel state on regularly nanostructured surfaces induced by an electric field10.1021/acs.langmuir.8b03808 ↗
45. Cassie–Baxter and Wenzel states on a nanostructured surface: phase diagram, metastabilities, and transition mechanism by atomistic free energy calculations10.1021/la3018453 ↗
46. Quasi-seamless stitching for large-area micropatterned surfaces enabled by Fourier spectral analysis of moiré patterns10.1038/s41467-023-37828-8 ↗
47. Effect of surface pattern morphology on inducing superhydrophobicity10.1016/j.apsusc.2020.145847 ↗
48. Role of viscous dissipative processes on the wetting of textured surfaces10.1038/srep14159 ↗