{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,30]],"date-time":"2026-05-30T22:01:48Z","timestamp":1780178508404,"version":"3.54.0"},"reference-count":29,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2026,5,27]],"date-time":"2026-05-27T00:00:00Z","timestamp":1779840000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,5,27]],"date-time":"2026-05-27T00:00:00Z","timestamp":1779840000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100000780","name":"European Union","doi-asserted-by":"publisher","award":["101129638"],"award-info":[{"award-number":["101129638"]}],"id":[{"id":"10.13039\/501100000780","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["chemistry-europe.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["ChemPhysChem"],"published-print":{"date-parts":[[2026,5,27]]},"abstract":"<jats:p>\n                    This perspective highlights recent advances in the development of\n                    <jats:italic>\u03c0<\/jats:italic>\n                    \u2010conjugated organic semiconductors with ion\u2010selective motifs, with a particular focus on crown ether\u2010functionalized small molecules and polymers that selectively recognize biologically relevant metal cations such as Na\n                    <jats:sup>+<\/jats:sup>\n                    , K\n                    <jats:sup>+<\/jats:sup>\n                    , and Ba\n                    <jats:sup>2+<\/jats:sup>\n                    . Through the utilization of the size complementarity between the crown ether cavity and target ions, various systems have been designed that show pronounced optical responses such as hypsochromic shifts, ratiometric absorption changes, fluorescence modulation, and aggregation\u2010induced emission. Such properties can be ascribed to ion\u2010induced conformational changes,\n                    <jats:italic>\u03c0<\/jats:italic>\n                    \u2010conjugation modulation, and controlled intermolecular packing. Besides optical sensing, ion\u2010selective interactions have been successfully utilized for the development of applications for electronic devices such as organic electrochemical transistors, wherein selective ion binding modulates charge transport in both p\u2010type and n\u2010type semiconductors. The incorporation of ion recognition motifs into\n                    <jats:italic>\u03c0<\/jats:italic>\n                    \u2010conjugated backbones has made it possible to achieve selective dedoping, controlled aggregation, and large current modulation, thus proving the concept of ion\u2010selective organic electronic devices. Moreover, the application of crown ethers has been shown to enhance processability, morphology, and electrochromic properties. These advancements demonstrate the growing importance of structurally modified organic semiconductors in adaptive electronics and bioelectronic sensing.\n                  <\/jats:p>","DOI":"10.1002\/cphc.70419","type":"journal-article","created":{"date-parts":[[2026,5,27]],"date-time":"2026-05-27T18:09:32Z","timestamp":1779905372000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Crown Ether\u2010Based Ion\u2010Selective Organic Semiconductors by Molecular Design"],"prefix":"10.1002","volume":"27","author":[{"given":"Blair G.","family":"Hirst","sequence":"first","affiliation":[{"name":"Department of Chemistry School of Physical and Chemical Sciences Queen Mary University of London  London UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Leila","family":"Pooriakia","sequence":"additional","affiliation":[{"name":"Department of Chemistry School of Physical and Chemical Sciences Queen Mary University of London  London UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kalidass","family":"Kollimalaian","sequence":"additional","affiliation":[{"name":"Department of Chemistry School of Physical and Chemical Sciences Queen Mary University of London  London UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8591-1203","authenticated-orcid":false,"given":"Christian B.","family":"Nielsen","sequence":"additional","affiliation":[{"name":"Department of Chemistry School of Physical and Chemical Sciences Queen Mary University of London  London UK"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,5,27]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41570-019-0152-9"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.1021\/jacs.6b05280"},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.1002\/aelm.202000215"},{"key":"e_1_2_10_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.matt.2023.05.001"},{"key":"e_1_2_10_6_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.chemrev.1c00314"},{"key":"e_1_2_10_7_1","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.1608780113"},{"key":"e_1_2_10_8_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.chemmater.8b02804"},{"key":"e_1_2_10_9_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.202200274"},{"key":"e_1_2_10_10_1","doi-asserted-by":"publisher","DOI":"10.1002\/cphc.202500403"},{"key":"e_1_2_10_11_1","first-page":"2308281","article-title":"Single\u2010Component Electroactive Polymer Architectures for Non\u2010Enzymatic Glucose Sensing","volume":"11","author":"Kousseff C. 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