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PEGylated Network Nanostructured by Gold Nanoparticles for Electrochemical Sensing of Aromatic Redox and Nonredox Analytes

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cris.lastimport.scopus2024-02-12T20:26:51Z
dc.abstract.enWe present the design, tailoring, and physicochemical properties of a multicomponent polyethylene glycol (PEG)-based polymer doped with spherical nanoparticles modified with a lipoic acid derivative of cyclodextrin and its application for the electrochemical sensing of a ferrocene derivative and ibuprofen at low concentrations. Each of the components of this hybrid material has specific properties that can be useful for the preparation of sensors characterized by high selectivity and a low detection limit. Electrochemical studies have previously shown that the cyclodextrin derivative with an aromatic triazole linker in the structure enhances binding of the analyte, ensuring its preconcentration on the electrode and, therefore, enabling improvement of the sensor detection limit. On the other hand, the introduction of evenly dispersed spherical gold nanoparticles in the polymer matrix increases the conductivity of the film and enhances the analytical signal. The third component─a biocompatible and easily wettable cross-linker, PEG─allows for uninterrupted diffusion within the polymer film. This significantly increases the analytical performance of the sensor, supports further improvement of the detection limit, and enables the determination of the analyte after saturation of cyclodextrin cavities (high concentration of analyte) based on its diffusion response. The designed hybrid material was used for the direct and indirect determination of aromatic analytes─ferrocene derivative and ibuprofen─with a very low detection limit.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorMajdecki, Maciej
dc.contributor.authorBilewicz, Renata
dc.contributor.authorŚwięch, Olga
dc.date.accessioned2024-01-25T16:22:42Z
dc.date.available2024-01-25T16:22:42Z
dc.date.copyright2022-12-05
dc.date.issued2023
dc.description.accesstimeAT_PUBLICATION
dc.description.financePublikacja bezkosztowa
dc.description.number1
dc.description.versionFINAL_PUBLISHED
dc.description.volume5
dc.identifier.doi10.1021/ACSAPM.2C01451
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/115653
dc.identifier.weblinkhttps://pubs.acs.org/doi/pdf/10.1021/acsapm.2c01451
dc.languageeng
dc.pbn.affiliationchemical sciences
dc.relation.ispartofACS Applied Polymer Materials
dc.relation.pages214–222
dc.rightsCC-BY
dc.sciencecloudnosend
dc.subject.enibuprofen
dc.subject.enferrocene
dc.subject.enelectrochemical sensors
dc.subject.encyclodextrin
dc.subject.enlipoic acid
dc.subject.engold nanoparticles
dc.subject.eninclusion complex
dc.titlePEGylated Network Nanostructured by Gold Nanoparticles for Electrochemical Sensing of Aromatic Redox and Nonredox Analytes
dc.typeJournalArticle
dspace.entity.typePublication