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However, many fluorescent probes are suffering from aggregation\u2010caused fluorescence quenching in their solid\/aggregated state, are costly, and\/or not straightforward to incorporate in foams, limiting their utility for this application. Herein, non\u2010isocyanate polyurethane foams, prepared by the simple water\u2010induced self\u2010blowing process, present a nonconventional fluorescence behaviour, i.e. they are intrinsically fluorescent with a multicolor emission without requiring ex situ traditional fluorescent probes. These foams demonstrate utility for capturing\u2010sensing gaseous formaldehyde (an emblematic indoor air pollutant), as well as for detecting and quantifying various metal ions (Fe\n                    <jats:sup>2+<\/jats:sup>\n                    , Cu\n                    <jats:sup>2+<\/jats:sup>\n                    , Fe\n                    <jats:sup>3+<\/jats:sup>\n                    , Hg\n                    <jats:sup>2+<\/jats:sup>\n                    ). They are also able to selectively sense tetracycline antibiotic in a ratiometric way with a high sensitivity. By exploiting the unique multicolor photoluminescent foam properties, a smartphone\u2010compatible device is used for the facile antibiotic quantification. This nonconventional fluorescence behaviour is discussed experimentally and theoretically, and is mainly based on clusteroluminescence originating from multiple hydrogen bonding and hetero\u2010atomic sub\u2010luminophores, thus from aggregation\u2010induced emission luminogens that are naturally present in the foams. This work illustrates that easily accessible non\u2010conventional fluorescent NIPU foams characterized by a modular emission wavelength have an enormous potential for multiple substrates detection and quantification.\n                  <\/jats:p>","DOI":"10.1002\/anie.202413605","type":"journal-article","created":{"date-parts":[[2024,9,19]],"date-time":"2024-09-19T09:24:36Z","timestamp":1726737876000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":31,"title":["Nonconventional Fluorescent Non\u2010Isocyanate Polyurethane Foams for Multipurpose Sensing Applications"],"prefix":"10.1002","volume":"64","author":[{"given":"Manas","family":"Mahapatra","sequence":"first","affiliation":[{"name":"Center for Education and Research on Macromolecules (CERM) CESAM Research Unit Department of Chemistry University of Liege  Liege 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