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This work aims to address such a conformation\u2010control dilemma, which has prohibited DNA\u2010guided, strongly coupled plasmonic metamaterials from evolving into 3D \u201cpolyatomic\u201d systems. A DNA tetrahedron is utilized to guide the assembly of coplanar (2D) triangular and nonplanar (3D) tetrahedral suprastructures of gold nanoparticles (AuNPs). Among various structural variants of these assemblies, the ones with D\n                    <jats:sub>3h<\/jats:sub>\n                    (trimer) and T\n                    <jats:sub>d<\/jats:sub>\n                    (tetramer) symmetries are particularly important, which are conformal in symmetry to the DNA framework. Our research further discloses that a water\u2010miscible solvent of acetonitrile is good at driving strong coupling of DNA\u2010bonded AuNP trimers and tetramers into close\u2010packed plasmonic molecules, while maintaining their D\n                    <jats:sub>3h<\/jats:sub>\n                    and T\n                    <jats:sub>d<\/jats:sub>\n                    symmetries, respectively. The resulting strongly coupled AuNP clusters can be fixed in high\u2010fidelity by Ag\n                    <jats:sup>+<\/jats:sup>\n                    soldering. This success is attributed to the unique roles of acetonitrile in altering the interfacial\/colloidal behaviors of AuNPs and DNA's mechanical properties, enabling cooperative\/simultaneous close\u2010packing of all AuNPs in an assembly. Our work opens up an avenue toward DNA\u2010guided, close\u2010coupled, higher\u2010order plasmonic molecules for functional metamaterials.\n                  <\/jats:p>","DOI":"10.1002\/smll.202514191","type":"journal-article","created":{"date-parts":[[2026,3,8]],"date-time":"2026-03-08T22:50:15Z","timestamp":1773010215000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["DNA\u2010Guided Close\u2010Coupled Plasmonic \u201cPolyatomic Molecules\u201d"],"prefix":"10.1002","volume":"22","author":[{"given":"Meiyun","family":"Ye","sequence":"first","affiliation":[{"name":"Hefei National Research Center for Physical Sciences at the Microscale University of Science and Technology of China  Hefei Anhui China"},{"name":"Department of Chemistry School of Chemistry and Materials Science University of Science and Technology of China  Hefei Anhui China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lei","family":"Song","sequence":"additional","affiliation":[{"name":"Hefei National Research Center for Physical Sciences at the Microscale University of Science and Technology of China  Hefei Anhui China"},{"name":"Department of Chemistry School of Chemistry and Materials Science University of Science and Technology of China  Hefei Anhui China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chuye","family":"Pan","sequence":"additional","affiliation":[{"name":"Department of Chemistry School of Chemistry and Materials Science University of Science and Technology of China  Hefei Anhui China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ziyue","family":"Guo","sequence":"additional","affiliation":[{"name":"Hefei National Research Center for Physical Sciences at the Microscale University of Science and Technology of China  Hefei Anhui China"},{"name":"Department of Chemistry School of Chemistry and Materials Science University of Science and Technology of China  Hefei Anhui China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yichen","family":"Ye","sequence":"additional","affiliation":[{"name":"Hefei National Research Center for Physical Sciences at the Microscale University of Science and Technology of China  Hefei Anhui China"},{"name":"Department of Chemistry School of Chemistry and Materials Science University of Science and Technology of China  Hefei Anhui China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yue","family":"Lin","sequence":"additional","affiliation":[{"name":"Hefei National Research Center for Physical Sciences at the Microscale University of Science and Technology of China  Hefei Anhui 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M.Romo\u2010Herrera et\u00a0al. \u201cOrganized Plasmonic Clusters With High Coordination Number and Extraordinary Enhancement in Surface\u2010Enhanced Raman Scattering (SERS) \u201dAngewandte Chemie International Edition51(2012):12688\u201312693 https:\/\/doi.org\/10.1002\/ange.201207019.","DOI":"10.1002\/anie.201207019"}],"container-title":["Small"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/smll.202514191","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1002\/smll.202514191","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/smll.202514191","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,27]],"date-time":"2026-04-27T12:50:33Z","timestamp":1777294233000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/smll.202514191"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,3,5]]},"references-count":75,"journal-issue":{"issue":"24","published-print":{"date-parts":[[2026,4]]}},"alternative-id":["10.1002\/smll.202514191"],"URL":"https:\/\/doi.org\/10.1002\/smll.202514191","archive":["Portico"],"relation":{},"ISSN":["1613-6810","1613-6829"],"issn-type":[{"value":"1613-6810","type":"print"},{"value":"1613-6829","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,3,5]]},"assertion":[{"value":"2025-11-27","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-02-25","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-03-05","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"e14191"}}