Ultrasensitive impedimetric immunosensor for the detection of C-reactive protein in blood at surface-initiated-reversible addition–fragmentation chain transfer generated poly(2-hydroxyethyl methacrylate) brushes
The reversible addition–fragmentation chain transfer (RAFT) polymerization of 2-hydroxethyl methacrylate (HEMA) from a surface confined, dithio-tethered, chain transfer agent (CTA) enables the preparation of electrode-tethered poly(2-hydroxyethyl methacrylate) (pHEMA) brushes of well-defined thickne...
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
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American Chemical Society
2020
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| _version_ | 1797088037044224000 |
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| author | Kanyong, P Catli, C Davis, JJ |
| author_facet | Kanyong, P Catli, C Davis, JJ |
| author_sort | Kanyong, P |
| collection | OXFORD |
| description | The reversible addition–fragmentation chain transfer (RAFT) polymerization of 2-hydroxethyl methacrylate (HEMA) from a surface confined, dithio-tethered, chain transfer agent (CTA) enables the preparation of electrode-tethered poly(2-hydroxyethyl methacrylate) (pHEMA) brushes of well-defined thickness with convenience and exceptionally high interfacial impedimetric baseline stability. The subsequent covalent integration of antibodies generates interfaces of very high target recognition specificity, ultimately enabling femtomolar levels of quantification of C-reactive protein (CRP) and recovery in spiked serum samples of ∼98%. When combined with the intrinsic scalability of the reagentless electrochemical impedance spectroscopy (EIS) platform, and the innate high levels of polymer tuneability and control, we believe this represents a valuable contribution to the diagnostic toolbox.
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| first_indexed | 2024-03-07T02:44:10Z |
| format | Journal article |
| id | oxford-uuid:ab79dbc2-d764-4980-abde-b4f97bdff51b |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T02:44:10Z |
| publishDate | 2020 |
| publisher | American Chemical Society |
| record_format | dspace |
| spelling | oxford-uuid:ab79dbc2-d764-4980-abde-b4f97bdff51b2022-03-27T03:22:09ZUltrasensitive impedimetric immunosensor for the detection of C-reactive protein in blood at surface-initiated-reversible addition–fragmentation chain transfer generated poly(2-hydroxyethyl methacrylate) brushesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:ab79dbc2-d764-4980-abde-b4f97bdff51bEnglishSymplectic ElementsAmerican Chemical Society2020Kanyong, PCatli, CDavis, JJThe reversible addition–fragmentation chain transfer (RAFT) polymerization of 2-hydroxethyl methacrylate (HEMA) from a surface confined, dithio-tethered, chain transfer agent (CTA) enables the preparation of electrode-tethered poly(2-hydroxyethyl methacrylate) (pHEMA) brushes of well-defined thickness with convenience and exceptionally high interfacial impedimetric baseline stability. The subsequent covalent integration of antibodies generates interfaces of very high target recognition specificity, ultimately enabling femtomolar levels of quantification of C-reactive protein (CRP) and recovery in spiked serum samples of ∼98%. When combined with the intrinsic scalability of the reagentless electrochemical impedance spectroscopy (EIS) platform, and the innate high levels of polymer tuneability and control, we believe this represents a valuable contribution to the diagnostic toolbox. |
| spellingShingle | Kanyong, P Catli, C Davis, JJ Ultrasensitive impedimetric immunosensor for the detection of C-reactive protein in blood at surface-initiated-reversible addition–fragmentation chain transfer generated poly(2-hydroxyethyl methacrylate) brushes |
| title | Ultrasensitive impedimetric immunosensor for the detection of C-reactive protein in blood at surface-initiated-reversible addition–fragmentation chain transfer generated poly(2-hydroxyethyl methacrylate) brushes |
| title_full | Ultrasensitive impedimetric immunosensor for the detection of C-reactive protein in blood at surface-initiated-reversible addition–fragmentation chain transfer generated poly(2-hydroxyethyl methacrylate) brushes |
| title_fullStr | Ultrasensitive impedimetric immunosensor for the detection of C-reactive protein in blood at surface-initiated-reversible addition–fragmentation chain transfer generated poly(2-hydroxyethyl methacrylate) brushes |
| title_full_unstemmed | Ultrasensitive impedimetric immunosensor for the detection of C-reactive protein in blood at surface-initiated-reversible addition–fragmentation chain transfer generated poly(2-hydroxyethyl methacrylate) brushes |
| title_short | Ultrasensitive impedimetric immunosensor for the detection of C-reactive protein in blood at surface-initiated-reversible addition–fragmentation chain transfer generated poly(2-hydroxyethyl methacrylate) brushes |
| title_sort | ultrasensitive impedimetric immunosensor for the detection of c reactive protein in blood at surface initiated reversible addition fragmentation chain transfer generated poly 2 hydroxyethyl methacrylate brushes |
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