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Here, we report a scalable, topography\u2010free slippery liquid\u2010infused porous surface (SLIPS) based on poly[1\u2010phenyl\u20102\u2010[p\u2010(trimethylsilyl)phenyl]acetylene] (PTMSDPA). By selectively chemically fluorinating specific regions of the porous PTMSDPA film, followed by sequential infusion of two immiscible hydrophobic lubricants into their respective affinity\u2010matched polymer matrices, this approach enables interfacial energy contrasts that direct droplet motion. The heterogeneous oil\u2010infused porous surface (HOIPS) has a unique intrinsic fluorescence enabling real\u2010time, dye\u2010free visualization of infiltrated lubricant domains. Owing to its ultrathin (\u223c200 nm) and flexible polymer structure, the HOIPS enables controllable droplet motion on flat, flexible, and curved substrates without reliance on surface topography, physical confinement, or asymmetric geometries. Sub\u2010millimeter\u2010scale HOIPS line patterns enable controlled droplet coalescence, shedding diameter, and release timing during condensation, and optimized patterns exhibit up to 2.5\u00d7 higher water\u2010harvesting performance compared to fluorinated\u2010oil\u2010based SLIPS, providing a material\u2010efficient strategy for liquid\u2010repellent surfaces. Taken together, these results establish PTMSDPA\u2010based HOIPS as a versatile platform for controlled droplet manipulation and condensation management.<\/jats:p>","DOI":"10.1002\/smll.202510374","type":"journal-article","created":{"date-parts":[[2026,2,5]],"date-time":"2026-02-05T08:25:34Z","timestamp":1770279934000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Topography\u2010Free Dual\u2010Lubricant Patterned Slippery Surfaces for Programmable Droplet Control and High\u2010Performance Water Harvesting"],"prefix":"10.1002","volume":"22","author":[{"given":"Jinchul","family":"Yang","sequence":"first","affiliation":[{"name":"Reliability Assessment Center for Chemical Materials Korea Research Institute of Chemical Technology (KRICT)  Daejeon Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eonji","family":"Kim","sequence":"additional","affiliation":[{"name":"Reliability 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Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yong\u2010Jae","family":"Jin","sequence":"additional","affiliation":[{"name":"Department of Specialty Chemicals Division of Specialty and Bio\u2010based Chemicals Technology Korea Research Institute of Chemical Technology (KRICT)  Ulsan Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joon Heon","family":"Kim","sequence":"additional","affiliation":[{"name":"Advanced Photonics Research Institute Gwangju Institute of Science and Technology  Gwangju Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Giseop","family":"Kwak","sequence":"additional","affiliation":[{"name":"Department of Polymer Science and Engineering Polymeric Nanomaterials Laboratory Kyungpook National University  Daegu Republic of 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