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Water-soluble polymeric probe with tryptophan pendants for formaldehyde sensing

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dc.contributor.author Roy, Subhadip en_US
dc.contributor.author Pan, Swagata en_US
dc.contributor.author Choudhury, Neha en_US
dc.contributor.author SIVARAM SWAMINATHAN en_US
dc.contributor.author De, Priyadarsi  en_US
dc.date.accessioned 2024-07-01T03:59:13Z
dc.date.available 2024-07-01T03:59:13Z
dc.date.issued 2024-07 en_US
dc.identifier.citation European Polymer Journal, 215, 113241. en_US
dc.identifier.issn 0014-3057 en_US
dc.identifier.issn 1873-1945 en_US
dc.identifier.uri https://doi.org/10.1016/j.eurpolymj.2024.113241 en_US
dc.identifier.uri http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/8998
dc.description.abstract Formaldehyde (FA) is a grade-I carcinogen and the most reactive aldehyde in the carbonyl family, posing substantial health hazards. Herein, a water-soluble polymeric probe with side-chain tryptophan pendants is proposed that relies on an FA-induced Pictet-Spengler reaction for FA sensing in an aqueous medium. The polymeric probe shows cyan fluorescence in an aqueous medium after the interaction with FA due to the formation of a β-carboline derivative, confirmed by high-resolution mass spectrum analysis of the product from the model reaction between tryptophan methyl ester and FA. The copolymer’s sensitivity to FA in aqueous solutions at the nanomolar level is estimated using the fluorescence titration method, where ∼20-fold enhancement in fluorescence intensity is observed within 2 min when 200 µM FA is added to the aqueous solution of the copolymer. The probe can selectively detect FA using colorimetric and fluorometric methods with a detection limit as low as 25 nM. The FA-sensing mechanism is studied from the model reaction of tryptophan methyl ester (TME) with FA, and density functional theory (DFT). en_US
dc.language.iso en en_US
dc.publisher Elsevier B.V. en_US
dc.subject Tryptophan en_US
dc.subject Polymeric probe en_US
dc.subject Formaldehyde sensor en_US
dc.subject Pictet-Spengler reaction en_US
dc.subject Colorimetric and fluorometric sensing en_US
dc.subject 2024 en_US
dc.subject 2024-JUN-WEEK3 en_US
dc.subject TOC-JUN-2024 en_US
dc.title Water-soluble polymeric probe with tryptophan pendants for formaldehyde sensing en_US
dc.type Article en_US
dc.contributor.department Dept. of Chemistry en_US
dc.identifier.sourcetitle European Polymer Journal en_US
dc.publication.originofpublisher Foreign en_US


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