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However, most pneumatic designs rely on bulky chambers that limit miniaturization and prevent implementation in thin films actuation. Therefore, achieving efficient planar pneumatic actuation remains challenging. Here, a novel actuator is introduced called soft interconnected network (SIN) actuator, featuring a two\u2010dimensional network of interconnected microchannels embedded within an asymmetric bilayer polydimethylsiloxane (PDMS). Upon pressurization, localized strain gradients drive dual\u2010curvature out\u2010of\u2010plane deformation, forming a dome\u2010shaped motion. This skin\u2010like actuator exhibits large, reversible displacement and blocking force despite an overall thickness of only 2\u00a0mm. The conducted systematic geometric study shows how channel height, width, pattern resolution, and layer thickness govern actuation performance. The optimized design can achieve a large peak displacement of 30\u00a0mm under moderate pressure levels. Finally, the proposed soft actuator is implemented in a bio\u2010inspired prototype to mimic smooth, cyclic expansion\u2013contraction behavior of a jellyfish bell, confirming its high potential for utilization in future bio\u2010inspired robots as an artificial muscle. This work establishes a generalizable platform for planar pneumatic actuation and paves the way toward next\u2010generation artificial skins, soft muscles, and bioinspired robots capable of 2D shell deformation.<\/jats:p>","DOI":"10.1002\/advs.76995","type":"journal-article","created":{"date-parts":[[2026,8,7]],"date-time":"2026-08-07T12:10:33Z","timestamp":1786104633000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Developing Soft Interconnected Microchannel Network for 2D Skin\u2010Like Actuator"],"prefix":"10.1002","author":[{"ORCID":"https:\/\/orcid.org\/0009-0001-7909-8420","authenticated-orcid":false,"given":"John","family":"Noee","sequence":"first","affiliation":[{"name":"Department of Mechanical and Production Engineering Aarhus University  Aarhus 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Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2623-2531","authenticated-orcid":false,"given":"Rassoul","family":"Tabassian","sequence":"additional","affiliation":[{"name":"Department of Mechanical and Production Engineering Aarhus University  Aarhus 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