{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,25]],"date-time":"2026-08-25T05:19:56Z","timestamp":1787635196942,"version":"build-2736575974"},"reference-count":60,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2026,8,6]],"date-time":"2026-08-06T00:00:00Z","timestamp":1785974400000},"content-version":"vor","delay-in-days":5,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,8,1]],"date-time":"2026-08-01T00:00:00Z","timestamp":1785542400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100006593","name":"Board of Research in Nuclear Sciences","doi-asserted-by":"publisher","award":["58\/14\/2025\u2010BRNS\/366"],"award-info":[{"award-number":["58\/14\/2025\u2010BRNS\/366"]}],"id":[{"id":"10.13039\/501100006593","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["analyticalsciencejournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Luminescence"],"published-print":{"date-parts":[[2026,8]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Dextran sulfate sodium (DSS), a polysaccharide, can cause adverse effects such as joint pain, stiffness, and hair loss when used excessively. Rapid, accurate detection of DSS in biological samples is vital for timely clinical diagnosis and treatment decisions. However, current literature on analytical techniques for DSS detection remains limited. For this purpose, we have prepared a fluorescent, room\u2010temperature ionic liquid, trihexyltetradecylphosphonium 2\u2010(naphthalen\u20101\u2010yl)\u20101H\u2010phenanthro[9,10\u2010d]imidazolate (\n                    <jats:bold>MTNP<\/jats:bold>\n                    ), and its low\u2010dimensional materials,\n                    <jats:bold>nMTNP<\/jats:bold>\n                    , and characterized them using various spectroscopic and microscopic techniques. The neat\n                    <jats:bold>MTNP<\/jats:bold>\n                    functioned effectively as a solvent\u2010free fluorescent ink, offering excellent performance for secure writing. The intense cyan fluorescence of\n                    <jats:bold>nMTNP<\/jats:bold>\n                    permits precise, efficient sensing of DSS in both aqueous media and on paper\u2010strip formats, with a lowest detection limit of 7.30\u2009ng\/mL, which is lower than the lowest standard concentration used (0.12\u2009\u03bcM). Owing to its strong fluorescence, the sensor enabled sensitive and selective DSS analysis in real water samples. We have also developed a smartphone\u2010based detection technique for on\u2010spot detection. The developed sensor enables fast, accurate, and highly sensitive detection of DSS, with clear potential to enhance targeted environmental applications and medical diagnosis.\n                  <\/jats:p>","DOI":"10.1002\/bio.70594","type":"journal-article","created":{"date-parts":[[2026,8,7]],"date-time":"2026-08-07T03:28:47Z","timestamp":1786073327000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["A Blue\u2010Emitting Ionic Liquid\u2010Based Nano\u2010Optode for Ultra\u2010Sensitive Detection of Dextran Sulfate"],"prefix":"10.1002","volume":"41","author":[{"given":"Najmin","family":"Tohora","sequence":"first","affiliation":[{"name":"Department of Chemistry University of North Bengal  Darjeeling West Bengal India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2268-6157","authenticated-orcid":false,"given":"Sudhir 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India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,8,6]]},"reference":[{"key":"e_1_2_16_2_1","doi-asserted-by":"publisher","DOI":"10.1038\/191277a0"},{"key":"e_1_2_16_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/jctb.1322"},{"key":"e_1_2_16_4_1","doi-asserted-by":"publisher","DOI":"10.1007\/12_100"},{"key":"e_1_2_16_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.saa.2005.03.001"},{"key":"e_1_2_16_6_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00604-006-0641-7"},{"key":"e_1_2_16_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.colsurfa.2025.137628"},{"key":"e_1_2_16_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0049-3848(03)00250-0"},{"key":"e_1_2_16_9_1","doi-asserted-by":"publisher","DOI":"10.1128\/AAC.32.11.1742"},{"key":"e_1_2_16_10_1","doi-asserted-by":"publisher","DOI":"10.1093\/infdis\/161.2.208"},{"key":"e_1_2_16_11_1","doi-asserted-by":"publisher","DOI":"10.1095\/biolreprod54.1.173"},{"key":"e_1_2_16_12_1","doi-asserted-by":"publisher","DOI":"10.1095\/biolreprod48.3.431"},{"key":"e_1_2_16_13_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0166-3542(99)00031-5"},{"key":"e_1_2_16_14_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.2452480"},{"key":"e_1_2_16_15_1","doi-asserted-by":"publisher","DOI":"10.1021\/pr100547y"},{"key":"e_1_2_16_16_1","doi-asserted-by":"publisher","DOI":"10.1016\/0166-3542(94)90041-8"},{"key":"e_1_2_16_17_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.saa.2023.123761"},{"key":"e_1_2_16_18_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.saa.2021.120760"},{"key":"e_1_2_16_19_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.snb.2025.138157"},{"key":"e_1_2_16_20_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.saa.2008.06.019"},{"key":"e_1_2_16_21_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jchromb.2015.12.031"},{"key":"e_1_2_16_22_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.aca.2021.338208"},{"key":"e_1_2_16_23_1","doi-asserted-by":"publisher","DOI":"10.3748\/wjg.v23.i33.6016"},{"key":"e_1_2_16_24_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.aca.2005.06.038"},{"key":"e_1_2_16_25_1","doi-asserted-by":"publisher","DOI":"10.1039\/B006677J"},{"key":"e_1_2_16_26_1","doi-asserted-by":"publisher","DOI":"10.1021\/ac0608669"},{"key":"e_1_2_16_27_1","doi-asserted-by":"publisher","DOI":"10.1039\/b501224d"},{"key":"e_1_2_16_28_1","doi-asserted-by":"publisher","DOI":"10.1021\/ac401151m"},{"key":"e_1_2_16_29_1","doi-asserted-by":"publisher","DOI":"10.1002\/chem.201300789"},{"key":"e_1_2_16_30_1","doi-asserted-by":"publisher","DOI":"10.1039\/c1cc00065a"},{"key":"e_1_2_16_31_1","doi-asserted-by":"publisher","DOI":"10.1021\/jp109121h"},{"key":"e_1_2_16_32_1","doi-asserted-by":"publisher","DOI":"10.1021\/jp2071925"},{"key":"e_1_2_16_33_1","doi-asserted-by":"publisher","DOI":"10.1039\/b907672g"},{"key":"e_1_2_16_34_1","doi-asserted-by":"publisher","DOI":"10.1039\/D4CP04660A"},{"key":"e_1_2_16_35_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00604-025-07153-6"},{"key":"e_1_2_16_36_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jphotochem.2024.115990"},{"key":"e_1_2_16_37_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jphotochem.2023.115050"},{"key":"e_1_2_16_38_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.talanta.2023.124968"},{"key":"e_1_2_16_39_1","doi-asserted-by":"publisher","DOI":"10.1039\/c0an00885k"},{"key":"e_1_2_16_40_1","doi-asserted-by":"publisher","DOI":"10.1039\/D0CP03157G"},{"key":"e_1_2_16_41_1","doi-asserted-by":"publisher","DOI":"10.1039\/C3RA47518B"},{"key":"e_1_2_16_42_1","doi-asserted-by":"publisher","DOI":"10.1021\/cr00032a005"},{"key":"e_1_2_16_43_1","volume-title":"Ionic 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