{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T17:58:32Z","timestamp":1790791112482,"version":"4.1.0"},"reference-count":48,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,9,27]],"date-time":"2026-09-27T00:00:00Z","timestamp":1790467200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,9,27]],"date-time":"2026-09-27T00:00:00Z","timestamp":1790467200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100001659","name":"Deutsche Forschungsgemeinschaft","doi-asserted-by":"publisher","award":["2082\/1\u2013390761711"],"award-info":[{"award-number":["2082\/1\u2013390761711"]}],"id":[{"id":"10.13039\/501100001659","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001659","name":"Deutsche Forschungsgemeinschaft","doi-asserted-by":"publisher","award":["2082\/2\u2013390761711"],"award-info":[{"award-number":["2082\/2\u2013390761711"]}],"id":[{"id":"10.13039\/501100001659","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100007569","name":"Carl-Zeiss-Stiftung","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100007569","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["advanced.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Advanced Science"],"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Metamaterials for controlling fluid flow have recently attracted considerable attention as an emerging new direction in the field of metamaterials. Herein, nonlocal metamaterials composed of one\u2010dimensionally periodic networks of standard microfluidic tubes and connectors are designed, comprising nearest\u2010neighbor (local) and beyond\u2010nearest\u2010neighbor (nonlocal) connections of order\n                    <jats:italic>N<\/jats:italic>\n                    = 2,3,4. The relative importance of laminar water flow through the nonlocal and local tubes is controlled by introducing tailored constrictions into the local tubes that serve as water\u2010flow resistors. Unusual alternating backward\/forward laminar flows of water that depend on the metamaterial parameters and on the boundary conditions are observed. Qualitatively, the backward\/forward flows can be seen with the naked human eye by following microparticles introduced into the water. Quantitatively, the backward\/forward flows are characterized and mapped by digital image analysis of movies taken with a camera. The experimental findings agree well with finite\u2010element calculations of the network's fluid streamlines that exhibit loop\u2010like behavior as well with calculations of the evanescent zero\u2010frequency Bloch eigenmodes of a simplified discrete periodic model, providing an intuitive understanding.\n                  <\/jats:p>","DOI":"10.1002\/advs.77912","type":"journal-article","created":{"date-parts":[[2026,9,27]],"date-time":"2026-09-27T18:00:31Z","timestamp":1790532031000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Experiments on Nonlocal Fluid\u2010Flow Metamaterials"],"prefix":"10.1002","author":[{"ORCID":"https:\/\/orcid.org\/0009-0004-4326-0766","authenticated-orcid":false,"given":"Ke","family":"Wang","sequence":"first","affiliation":[{"name":"Institute of Nanotechnology Karlsruhe Institute of Technology (KIT)  Karlsruhe Germany"},{"name":"Institute of Applied Physics Karlsruhe Institute of Technology (KIT)  Karlsruhe Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6614-976X","authenticated-orcid":false,"given":"Yi","family":"Chen","sequence":"additional","affiliation":[{"name":"Institute of Applied Physics Karlsruhe Institute of Technology (KIT)  Karlsruhe Germany"},{"name":"Marine Science and Technology Domain Beijing Institute of Technology (BIT)  Zhuhai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9770-2441","authenticated-orcid":false,"given":"Martin","family":"Wegener","sequence":"additional","affiliation":[{"name":"Institute of Nanotechnology Karlsruhe Institute of Technology (KIT)  Karlsruhe Germany"},{"name":"Institute of Applied Physics Karlsruhe Institute of Technology (KIT)  Karlsruhe 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