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dc.contributor.authorYang, Xiaoming
dc.contributor.authorZhong, Zhaowei
dc.contributor.authorLi, Erqiang
dc.contributor.authorWang, Zhihong
dc.contributor.authorXu, Wenjin
dc.contributor.authorThoroddsen, Sigurdur T
dc.contributor.authorZhang, Xixiang
dc.date.accessioned2015-08-03T10:42:08Z
dc.date.available2015-08-03T10:42:08Z
dc.date.issued2013
dc.identifier.citationYang, X. M., Zhong, Z. W., Li, E. Q., Wang, Z. H., Xu, W., Thoroddsen, S. T., & Zhang, X. X. (2013). Asymmetric liquid wetting and spreading on surfaces with slanted micro-pillar arrays. Soft Matter, 9(46), 11113. doi:10.1039/c3sm51809d
dc.identifier.issn1744683X
dc.identifier.doi10.1039/c3sm51809d
dc.identifier.urihttp://hdl.handle.net/10754/562546
dc.description.abstractUni-directional liquid spreading on asymmetric silicone-fabricated nanostructured surfaces has recently been reported. In this work, uniformly deflected polydimethylsiloxane (PDMS) micro-pillars covered with silver films were fabricated. Asymmetric liquid wetting and spreading behaviors in a preferential direction were observed on the slanted micro-pillar surfaces and a micro-scale thin liquid film advancing ahead of the bulk liquid droplet was clearly observed by high-speed video imaging. It is found that the slanted micro-pillar array is able to promote or inhibit the propagation of this thin liquid film in different directions by the asymmetric capillary force. The spreading behavior of the bulk liquid was guided and finally controlled by this micro-scale liquid film. Different spreading regimes are defined by the relationship between the liquid intrinsic contact angle and the critical angles, which were determined by the pillar height, pillar deflection angle and inter-pillar spacing. © The Royal Society of Chemistry 2013.
dc.publisherRoyal Society of Chemistry (RSC)
dc.titleAsymmetric liquid wetting and spreading on surfaces with slanted micro-pillar arrays
dc.typeArticle
dc.contributor.departmentAdvanced Nanofabrication, Imaging and Characterization Core Lab
dc.contributor.departmentClean Combustion Research Center
dc.contributor.departmentCore Labs
dc.contributor.departmentHigh-Speed Fluids Imaging Laboratory
dc.contributor.departmentImaging and Characterization Core Lab
dc.contributor.departmentMaterial Science and Engineering Program
dc.contributor.departmentMechanical Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalSoft Matter
dc.contributor.institutionSchool of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore
kaust.personYang, Xiaoming
kaust.personLi, Erqiang
kaust.personWang, Zhihong
kaust.personThoroddsen, Sigurdur T.
kaust.personZhang, Xixiang
kaust.personXu, Wenjin


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