Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1179085
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dc.contributor.authorVALLE, S. F.
dc.contributor.authorSOARES, A. C.
dc.contributor.authorPOPOLIN NETO, M.
dc.contributor.authorRIBEIRO, C.
dc.contributor.authorMATTOSO, L. H. C.
dc.contributor.authorOLIVEIRA Jr, O. N.
dc.date.accessioned2025-09-24T20:48:56Z-
dc.date.available2025-09-24T20:48:56Z-
dc.date.created2025-09-24
dc.date.issued2025
dc.identifier.citationJournal of Applied Polymer Science, v. 0, e57582, 2025.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1179085-
dc.descriptionPolysulfides (PS) are versatile sulfur-rich polymers synthesized via the inverse vulcanization of elemental sulfur, a simple onepot method that transforms an abundant, low-cost residue into a functional material. In this work, we employed different PS structures as sensing units in an electronic tongue (e-tongue) to detect the metal ions Hg2+, Ag+, and Fe3+. Detection was based on impedance spectroscopy, with capacitance data from three sensors processed using a multidimensional projection technique and machine learning. The e-tongue distinguished the three metal ions at various concentrations, down to 1nM for Hg2+, with a silhouette coefficient of 0.95. This high efficiency may be attributed to sulfur domains in PS acting as multiple active sites for metal sorption and binding. Using machine learning within the framework of multidimensional calibration space (MCS), the accuracy in distinguishing metal ion concentrations reached ~99%.
dc.language.isoeng
dc.rightsopenAccess
dc.subjectHeavy metal ions
dc.subjectElectronic tongues
dc.titlePolysulfides From Inverse Vulcanization Used in Electronic Tongues for Heavy Metal Sensing.
dc.typeArtigo de periódico
dc.format.extent213 p.
riaa.ainfo.id1179085
riaa.ainfo.lastupdate2025-09-24
dc.identifier.doihttps://doi.org/10.1002/app.57582
dc.contributor.institutionUNIVERSITY OF SÃO PAULO (USP); UNIVERSITY OF SÃO PAULO (USP); INSTITUTE OF SÃO PAULO (IFSP); CAUE RIBEIRO DE OLIVEIRA, CNPDIA; LUIZ HENRIQUE CAPPARELLI MATTOSO, CNPDIA; UNIVERSITY OF SÃO PAULO (USP).
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