Biomimetic Electrochemical Sensors Based on Core-Shell Imprinted Polymers for Targeted Sunset Yellow Estimation in Environmental Samples

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dc.contributor.authorMalik, Sumeet
dc.contributor.authorKhan, Adnan
dc.contributor.authorKhan, Hamayun
dc.contributor.authorRahman, Gul
dc.contributor.authorAli, Nauman
dc.contributor.authorKhan, Sabir [UNESP]
dc.contributor.authorSotomayor, Maria Del Pilar Taboada [UNESP]
dc.contributor.institutionUniversity of Peshawar
dc.contributor.institutionIslamia College Peshawar
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionFederal Rural University of the Semi-Arid
dc.contributor.institutionNational University of Engineering
dc.date.accessioned2023-07-29T14:01:38Z
dc.date.available2023-07-29T14:01:38Z
dc.date.issued2023-04-01
dc.description.abstractMagnetic molecularly imprinted polymers (MMIPs) contain the predesigned specialized recognition capability that can be chosen to build credible functional materials, that are easy to handle and have a good degree of specificity. Hence, the given piece of work is intended to design a novel electrochemical sensor incorporating magnetite-based molecularly imprinted polymers. The building materials consisted of a cross-linker (EGDMA), reaction-initiator (AIBN), monomer (methylene succinic acid-MSA), and template molecule (Sunset Yellow-SY dye). MMIPs exhibited a diameter of 57 nm with an irregular shape due to the presence of cavities based on SEM analysis. XRD patterns exhibited crystallinity, as well as amorphous peaks that are attributed to polymeric and non-polymeric frameworks of MMIPs. The crystallite size of the MMIPs from XRD analysis was found to be 16.28 nm based on the Debye-Scherrer’s equation. Meanwhile, the FTIR bands showed the synthesis of MMIPs using monomer and methylene succinic acid. The sorption data at the optimized operating conditions (pH 2, sorbent dosage 3 mg, time 18 min) showed the highest sorption capacity of 40 mg/g. The obtained data best fitted to the Langmuir sorption isotherm and followed the pseudo-second-order kinetics. The magneto-sensors were applied for ultrasensitive, rapid, and simple sensing of SY dye. The electrochemical experiments were run at the operating condition range of (scan rate 10–50 mV/s, tads 0–120 s, pH 5–9, potential range 1–1.5 V for CV and 1–1.3 V for SWAdASV). The linear range of detection was set to 1.51 × 10−6 M to 1.51 × 10−6 M posing LOD and LOQ values of 8.6242 × 10−5 M and 0.0002874 M, respectively. The regression analysis value for the calibration was found to be 0.950. Additionally, high adsorption efficiency, selectivity, reusability, and strong structural stability of the magneto-sensors showed potential use for SY detection in real samples. These characteristics make MMIPs a viable electrochemical substrate for the detection of chemical contaminants in the environment and in health-related products.en
dc.description.affiliationInstitute of Chemical Sciences University of Peshawar, Khyber Pakhtunkhwa
dc.description.affiliationDepartment of Chemistry Islamia College Peshawar, Khyber Pakhtunkhwa
dc.description.affiliationChemistry Institute São Paulo State University (UNESP), SP
dc.description.affiliationDepartment of Natural Sciences Mathematics and Statistics Federal Rural University of the Semi-Arid, RN
dc.description.affiliationTecMARA Faculty of Sciences National University of Engineering, Av. Tupac Amaru 210, Lima
dc.description.affiliationUnespChemistry Institute São Paulo State University (UNESP), SP
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdCNPq: 301728/2019-4
dc.identifierhttp://dx.doi.org/10.3390/bios13040429
dc.identifier.citationBiosensors, v. 13, n. 4, 2023.
dc.identifier.doi10.3390/bios13040429
dc.identifier.issn2079-6374
dc.identifier.scopus2-s2.0-85154573747
dc.identifier.urihttp://hdl.handle.net/11449/249072
dc.language.isoeng
dc.relation.ispartofBiosensors
dc.sourceScopus
dc.subjectadsorption
dc.subjectelectrochemical sensors
dc.subjectmolecularly imprinted polymers
dc.subjectprecipitation polymerization
dc.subjectsunset yellow dye
dc.titleBiomimetic Electrochemical Sensors Based on Core-Shell Imprinted Polymers for Targeted Sunset Yellow Estimation in Environmental Samplesen
dc.typeArtigo
unesp.author.orcid0000-0002-7937-0869[1]
unesp.author.orcid0000-0003-1335-146X[4]
unesp.author.orcid0000-0002-7485-6843[5]
unesp.author.orcid0000-0002-6173-7888[7]
unesp.departmentAdministração - Tupãpt

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