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Rhodamine-based conjugated polymers: potentiometric, colorimetric and voltammetric sensing of mercury ions in aqueous medium

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dc.contributor.author Ak, Metin
dc.contributor.author Ayrancı, Rukiye
dc.contributor.author Timur, Suna
dc.contributor.author Demirkol, Dilek Odacı
dc.date.accessioned 2019-07-11T06:57:33Z
dc.date.available 2019-07-11T06:57:33Z
dc.date.issued 2017-09-21
dc.identifier.issn 0003-2654
dc.identifier.uri http://hdl.handle.net/11499/3893
dc.description.abstract Herein, we report the synthesis and characterization of a new rhodamine-based monomer (RD-CZ), and an investigation of the optical and electrochemical properties of the corresponding polymer (P(RD-CZ)), which was electropolymerized on an ITO electrode. The resulting P(RD-CZ) polymer film was used as a simple and novel multi-signal sensor platform, which demonstrates ion-selective potentiometric, colorimetric and voltammetric responses in aqueous media for the first time. P(RD-CZ) exhibits excellent selectivity for Hg2+ ions compared with Cd2+, Cu2+ Zn2+, and Fe3+ using the potentiometric technique, which depends on the increasing charge carrier transport through rhodamine-bound Hg2+ with a limit of detection (LOD) of 9.77 × 10-8 M. The P(RD-CZ) polymer film also exhibits a distinct color change from orange to purple, which is detectable even by the naked eye, in the presence of Hg2+ ions. The LOD for Hg2+ ions obtained using the colorimetric method is 3.16 × 10-8 M. The same material has also been used for the voltammetric sensing of Hg2+ in aqueous media with a detection limit of 1 × 10-7 M. In this study, a conductive polymer-based sensor platform for detecting mercury ions via three different methods has been designed for the first time. By doing so, a disposable planar paper-based ion-sensing platform, which is suitable for low-cost point-of-care and in-field testing applications, could be fabricated with a highly reproducible and linear response towards different concentrations of analyte ions in aqueous and biological samples. tr_TR
dc.language.iso en tr_TR
dc.publisher Royal Society of Chemistry tr_TR
dc.rights info:eu-repo/semantics/closedAccess tr_TR
dc.subject Electrochemistry tr_TR
dc.subject Rhodamine tr_TR
dc.subject Mercury tr_TR
dc.subject Mercury sensing tr_TR
dc.subject Metal ion sensitive tr_TR
dc.subject Chronoamperometry tr_TR
dc.subject Chronopotensiometry tr_TR
dc.subject Optical properties tr_TR
dc.subject Electrical properties tr_TR
dc.subject Spectroelectrochemistry tr_TR
dc.subject Spectroelectrochemical analysis tr_TR
dc.subject Electropolymerization tr_TR
dc.subject LOD tr_TR
dc.subject Colorimetry tr_TR
dc.subject Colorimetric sensor tr_TR
dc.subject Disposable sensor tr_TR
dc.subject Polymer films tr_TR
dc.subject Multi signal tr_TR
dc.subject Potentiometric tr_TR
dc.subject Colorimetric sensor tr_TR
dc.subject Voltammetric sensor tr_TR
dc.title Rhodamine-based conjugated polymers: potentiometric, colorimetric and voltammetric sensing of mercury ions in aqueous medium tr_TR
dc.type article tr_TR
dc.relation.journal Analyst tr_TR
dc.contributor.authorID https://orcid.org/0000-0002-0000-4613 tr_TR
dc.contributor.authorID https://orcid.org/0000-0001-8444-2743
dc.contributor.authorID https://orcid.org/0000-0002-7954-1381
dc.identifier.volume 142 tr_TR
dc.identifier.issue 18 tr_TR
dc.identifier.startpage 3407 tr_TR
dc.identifier.endpage 3415 tr_TR
dc.relation.publicationCategory Uluslararası Hakemli Dergi
dc.identifier.index WOS
dc.identifier.index Scopus
dc.identifier.index PubMed

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