Multipurpose Sensor Based on a Polymethacrylate Matrix Nanocomposite with Immobilized Gold Nanoparticles for the Determination of Environmental Pollutants.
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| Title: | Multipurpose Sensor Based on a Polymethacrylate Matrix Nanocomposite with Immobilized Gold Nanoparticles for the Determination of Environmental Pollutants. |
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| Authors: | Kuznetsova, Daria E.1 (AUTHOR), Bazhenova, Olga A.1,2 (AUTHOR), Gavrilenko, Nataliya A.1 (AUTHOR), Gavrilenko, Mikhail A.2 (AUTHOR) dce@mail.ru, Saranchina, Nadezhda V.1 (AUTHOR) |
| Source: | Polymers (20734360). Jun2026, Vol. 18 Issue 11, p1375. 14p. |
| Subjects: | Gold nanoparticles, Nanocomposite materials, Thiocyanates, Optical sensors, Polymethacrylates, Tetracycline, Pollutants, Fluorescence |
| Abstract: | An optical sensor based on a polymethacrylate matrix (PMM) with immobilized gold nanoparticles (Au0 NPs) has been developed for the determination of pollutants in environmental samples. The nanoparticles are synthesized by chemical reduction of Au(III) to Au0 using sodium borohydride, which yields conglomerates of spherical particles with an absorption maximum at 530 nm. The time stability of the nanocomposite is demonstrated, as well as the ability to control the nanoparticle loading in the matrix by varying the concentration of the HAuCl4 solution. The analytical capability of the PMM–Au0 system is demonstrated for the direct determination of tetracycline in river water in two linear concentration ranges: 0.001–0.010 mg/L and 0.025–0.100 mg/L, with detection limits of 0.0005 mg/L and 0.012 mg/L, respectively. The determination of tetracycline is based on the enhancement of its intrinsic fluorescence at 520 nm by gold nanoparticles in the solid phase following solid-phase extraction from water in the anionic form H2TC− using PMM–Au0. The colorimetric determination of thiocyanate anions is based on a color change of the PMM–Au0 nanocomposite from red to blue, corresponding to a shift in the plasmon absorption maximum from 530 nm to 630 nm. The sensor exhibits a linear response in the thiocyanate concentration range of 0.3–50.0 mg/L, with a detection limit of 0.1 mg/L. Thus, the multifunctional PMM–Au0 sensor has been used for the determination of various analytes employing different modes of analytical signal readout after minimal sample preparation. [ABSTRACT FROM AUTHOR] |
| Copyright of Polymers (20734360) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
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| Header | DbId: egs DbLabel: Engineering Source An: 194587639 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Multipurpose Sensor Based on a Polymethacrylate Matrix Nanocomposite with Immobilized Gold Nanoparticles for the Determination of Environmental Pollutants. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Kuznetsova%2C+Daria+E%2E%22">Kuznetsova, Daria E.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bazhenova%2C+Olga+A%2E%22">Bazhenova, Olga A.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gavrilenko%2C+Nataliya+A%2E%22">Gavrilenko, Nataliya A.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gavrilenko%2C+Mikhail+A%2E%22">Gavrilenko, Mikhail A.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> dce@mail.ru</i><br /><searchLink fieldCode="AR" term="%22Saranchina%2C+Nadezhda+V%2E%22">Saranchina, Nadezhda V.</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Polymers+%2820734360%29%22">Polymers (20734360)</searchLink>. Jun2026, Vol. 18 Issue 11, p1375. 14p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Gold+nanoparticles%22">Gold nanoparticles</searchLink><br /><searchLink fieldCode="DE" term="%22Nanocomposite+materials%22">Nanocomposite materials</searchLink><br /><searchLink fieldCode="DE" term="%22Thiocyanates%22">Thiocyanates</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+sensors%22">Optical sensors</searchLink><br /><searchLink fieldCode="DE" term="%22Polymethacrylates%22">Polymethacrylates</searchLink><br /><searchLink fieldCode="DE" term="%22Tetracycline%22">Tetracycline</searchLink><br /><searchLink fieldCode="DE" term="%22Pollutants%22">Pollutants</searchLink><br /><searchLink fieldCode="DE" term="%22Fluorescence%22">Fluorescence</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: An optical sensor based on a polymethacrylate matrix (PMM) with immobilized gold nanoparticles (Au0 NPs) has been developed for the determination of pollutants in environmental samples. The nanoparticles are synthesized by chemical reduction of Au(III) to Au0 using sodium borohydride, which yields conglomerates of spherical particles with an absorption maximum at 530 nm. The time stability of the nanocomposite is demonstrated, as well as the ability to control the nanoparticle loading in the matrix by varying the concentration of the HAuCl4 solution. The analytical capability of the PMM–Au0 system is demonstrated for the direct determination of tetracycline in river water in two linear concentration ranges: 0.001–0.010 mg/L and 0.025–0.100 mg/L, with detection limits of 0.0005 mg/L and 0.012 mg/L, respectively. The determination of tetracycline is based on the enhancement of its intrinsic fluorescence at 520 nm by gold nanoparticles in the solid phase following solid-phase extraction from water in the anionic form H2TC− using PMM–Au0. The colorimetric determination of thiocyanate anions is based on a color change of the PMM–Au0 nanocomposite from red to blue, corresponding to a shift in the plasmon absorption maximum from 530 nm to 630 nm. The sensor exhibits a linear response in the thiocyanate concentration range of 0.3–50.0 mg/L, with a detection limit of 0.1 mg/L. Thus, the multifunctional PMM–Au0 sensor has been used for the determination of various analytes employing different modes of analytical signal readout after minimal sample preparation. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Polymers (20734360) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3390/polym18111375 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 14 StartPage: 1375 Subjects: – SubjectFull: Gold nanoparticles Type: general – SubjectFull: Nanocomposite materials Type: general – SubjectFull: Thiocyanates Type: general – SubjectFull: Optical sensors Type: general – SubjectFull: Polymethacrylates Type: general – SubjectFull: Tetracycline Type: general – SubjectFull: Pollutants Type: general – SubjectFull: Fluorescence Type: general Titles: – TitleFull: Multipurpose Sensor Based on a Polymethacrylate Matrix Nanocomposite with Immobilized Gold Nanoparticles for the Determination of Environmental Pollutants. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Kuznetsova, Daria E. – PersonEntity: Name: NameFull: Bazhenova, Olga A. – PersonEntity: Name: NameFull: Gavrilenko, Nataliya A. – PersonEntity: Name: NameFull: Gavrilenko, Mikhail A. – PersonEntity: Name: NameFull: Saranchina, Nadezhda V. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 20734360 Numbering: – Type: volume Value: 18 – Type: issue Value: 11 Titles: – TitleFull: Polymers (20734360) Type: main |
| ResultId | 1 |
