{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,26]],"date-time":"2026-06-26T10:50:13Z","timestamp":1782471013944,"version":"3.54.5"},"reference-count":40,"publisher":"Wiley","issue":"12","license":[{"start":{"date-parts":[[2026,6,18]],"date-time":"2026-06-18T00:00:00Z","timestamp":1781740800000},"content-version":"vor","delay-in-days":17,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,6,1]],"date-time":"2026-06-01T00:00:00Z","timestamp":1780272000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100001843","name":"Science and Engineering Research Board","doi-asserted-by":"publisher","award":["CRG\/2022\/000006"],"award-info":[{"award-number":["CRG\/2022\/000006"]}],"id":[{"id":"10.13039\/501100001843","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["aces.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Chemistry \u0097 An Asian Journal"],"published-print":{"date-parts":[[2026,6]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Developing efficient room\u2010temperature phosphorescence (RTP) in aqueous, metal\u2010free systems remains a significant challenge. This work demonstrates a supramolecular host\u2013guest approach to activate and amplify RTP from a metal\u2010free brominated pyridinium derivative (PTPyBr) in water, utilizing cucurbit[7]uril (CB[7]) and cucurbit[8]uril (CB[8]) as molecular containers. Encapsulation within these macrocycles fosters the formation of rigid assemblies that effectively inhibit molecular motions and quench vibrational dissipation. This confinement strategy substantially increases phosphorescence, exhibiting a\u00a02.27\u2010fold\u00a0and\u00a02.60\u2010fold\u00a0emission enhancement for the CB[7] and CB[8] complexes, respectively. Supramolecular encapsulation significantly prolongs the phosphorescence lifetime from\u00a0190 \u00b5s\u00a0(free PTPyBr) to\u00a0390 \u00b5s\u00a0with CB[7], and most notably, to\u00a0750 \u00b5s\u00a0with CB[8], highlighting the exceptional efficacy of the CB[8] confinement. Encapsulation of an organic phosphor (PTPyBr) by CB[7]\/[8] in 1:1 stoichiometry, confirmed by\n                    <jats:sup>1<\/jats:sup>\n                    H NMR titration, Job's plot, and isothermal titration calorimetry, provides exceptional stabilization and prolongs its phosphorescence lifetime. Accordingly, this study introduces a highly adaptable supramolecular methodology for generating robust, metal\u2010free RTP in aqueous environments, for promising applications in bioimaging, sensing technologies, and luminescent materials.\n                  <\/jats:p>","DOI":"10.1002\/asia.70846","type":"journal-article","created":{"date-parts":[[2026,6,19]],"date-time":"2026-06-19T04:14:18Z","timestamp":1781842458000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Dual Macrocycle Strategy: CB[7]\/CB[8] Encapsulation Unlocks Enhanced RTP in Aqueous Bromophenyl Pyridinium Cationic System"],"prefix":"10.1002","volume":"21","author":[{"given":"Sk Samsul","family":"Ghaus","sequence":"first","affiliation":[{"name":"Department of Chemical Sciences Indian Institute of Science Education and Research (IISER) Kolkata  Mohanpur West Bengal India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mridusmita","family":"Nath","sequence":"additional","affiliation":[{"name":"Department of Chemical Sciences Indian Institute of Science Education and Research (IISER) Kolkata  Mohanpur West Bengal India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bikram","family":"Das","sequence":"additional","affiliation":[{"name":"Department of Biological Sciences Indian Institute of Science Education and Research (IISER) Kolkata  Mohanpur West Bengal India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8825-1207","authenticated-orcid":false,"given":"Pradipta","family":"Purkayastha","sequence":"additional","affiliation":[{"name":"Department of Chemical Sciences Indian Institute of Science Education and Research (IISER) Kolkata  Mohanpur West Bengal India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,6,18]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41578-020-0223-z"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41467-020-14792-1"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41467-022-32029-1"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202415637"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1002\/agt2.253"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1002\/adom.202502379"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1039\/D4SC08330J"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.1021\/acsnano.3c04971"},{"key":"e_1_2_8_10_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202516177"},{"key":"e_1_2_8_11_1","first-page":"1835","article-title":"Switching Singlet Exciton to Triplet for Efficient Pure Organic Room\u2010Temperature Phosphorescence by Rational Molecular Design","volume":"3","author":"Ma L.","year":"2023","journal-title":"Journal of the American Chemical Society"},{"key":"e_1_2_8_12_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.202311347"},{"key":"e_1_2_8_13_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41570-023-00555-1"},{"key":"e_1_2_8_14_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.202311922"},{"key":"e_1_2_8_15_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.accounts.1c00336"},{"key":"e_1_2_8_16_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41467-024-49238-5"},{"key":"e_1_2_8_17_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41524-022-00702-0"},{"key":"e_1_2_8_18_1","doi-asserted-by":"publisher","DOI":"10.1039\/D2NJ01507B"},{"key":"e_1_2_8_19_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41598-018-32312-6"},{"key":"e_1_2_8_20_1","doi-asserted-by":"publisher","DOI":"10.1021\/acsami.2c16567"},{"key":"e_1_2_8_21_1","first-page":"216","article-title":"Cucurbit[8]Uril Confinement\u2010Based Secondary Coassembly for High\u2010Efficiency Phosphorescence Energy Transfer Behaviour","volume":"4","author":"Dai X.\u2010Y.","year":"2024","journal-title":"Journal of the American Chemical Society"},{"key":"e_1_2_8_22_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41467-023-39956-7"},{"key":"e_1_2_8_23_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202412182"},{"key":"e_1_2_8_24_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.201914513"},{"key":"e_1_2_8_25_1","doi-asserted-by":"publisher","DOI":"10.1111\/php.13956"},{"key":"e_1_2_8_26_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.accounts.8b00620"},{"key":"e_1_2_8_27_1","doi-asserted-by":"publisher","DOI":"10.1002\/adom.201800273"},{"key":"e_1_2_8_28_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.202007476"},{"key":"e_1_2_8_29_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41467-020-18520-7"},{"key":"e_1_2_8_30_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202107295"},{"key":"e_1_2_8_31_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.nanolett.4c04920"},{"key":"e_1_2_8_32_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41570-023-00555-1"},{"key":"e_1_2_8_33_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.joc.3c01111"},{"key":"e_1_2_8_34_1","doi-asserted-by":"publisher","DOI":"10.1002\/adpr.202000080"},{"key":"e_1_2_8_35_1","unstructured":"M. J.Frisch G. W.Trucks andH. B.Schlegel (Gaussian Inc 2016)."},{"key":"e_1_2_8_36_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.comptc.2025.115404"},{"key":"e_1_2_8_37_1","doi-asserted-by":"publisher","DOI":"10.1002\/wcms.81"},{"key":"e_1_2_8_38_1","doi-asserted-by":"publisher","DOI":"10.1021\/jacs.6b01223"},{"key":"e_1_2_8_39_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.202311347"},{"key":"e_1_2_8_40_1","doi-asserted-by":"publisher","DOI":"10.1039\/D2MA00299J"},{"key":"e_1_2_8_41_1","doi-asserted-by":"publisher","DOI":"10.1039\/D0CC06717B"}],"container-title":["Chemistry \u2013 An Asian Journal"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/aces.onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/asia.70846","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/aces.onlinelibrary.wiley.com\/doi\/full-xml\/10.1002\/asia.70846","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/aces.onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/asia.70846","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,6,26]],"date-time":"2026-06-26T10:10:31Z","timestamp":1782468631000},"score":1,"resource":{"primary":{"URL":"https:\/\/aces.onlinelibrary.wiley.com\/doi\/10.1002\/asia.70846"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,6]]},"references-count":40,"journal-issue":{"issue":"12","published-print":{"date-parts":[[2026,6]]}},"alternative-id":["10.1002\/asia.70846"],"URL":"https:\/\/doi.org\/10.1002\/asia.70846","archive":["Portico"],"relation":{},"ISSN":["1861-4728","1861-471X"],"issn-type":[{"value":"1861-4728","type":"print"},{"value":"1861-471X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,6]]},"assertion":[{"value":"2025-11-28","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-05-19","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-06-18","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"e70846"}}