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Herein, a new polymeric receptor (IV) derived from functionalized tetraphenylethylene moiety (TPE) and 1,3,5\u2010tris(4\u2010aminophenyl)benzene (TAPB) \u00a0moieties\u00a0for the efficient detection of TKX\u201050 through a \u2018switch ON\u2019 luminescence response upon specific binding to the explosive, is reported. The observed \u2018luminescence ON\u2019 response is rationalized based on a charge transfer complex formation between TKX\u201050 and the polymeric receptor IV (<jats:italic>K<\/jats:italic><jats:sub>a<\/jats:sub> = 1.7 \u00d7 10<jats:sup>4<\/jats:sup> <jats:sc>m<\/jats:sc><jats:sup>\u22121<\/jats:sup>). This is validated by the steady and excited\u2010state luminescence studies, along with detailed computational studies. The authors\u2019 presumptions are further validated with adequate control studies using an appropriate monomeric derivative (III) of TPE. Moreover, this \u2018luminescence ON\u2019 response can be integrated into a smart and user\u2010friendly Internet of Things (IoT)\u2010based prototype device. This device can effectively convert optical responses into digital output to develop an optical device for real\u2010time detection of TKX\u201050 in solution. This lightweight, portable device is ideally suited for remote surveillance and monitoring of TKX\u201050; such examples are rare in contemporary literature.<\/jats:p>","DOI":"10.1002\/smll.202409235","type":"journal-article","created":{"date-parts":[[2024,12,6]],"date-time":"2024-12-06T04:13:18Z","timestamp":1733458398000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Molecular Probe for Specific Recognition of TKX\u201050: \u2018Luminescence\u2010ON\u2019 Response and its Integration to a Smart Device for Surveillance"],"prefix":"10.1002","volume":"21","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4011-8137","authenticated-orcid":false,"given":"Somnath","family":"Bej","sequence":"first","affiliation":[{"name":"Department of Chemical Sciences Indian Institute of Science Education and Research Kolkata  Mohanpur 741246 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