Post-imprinting modification: electrochemical and scanning electrochemical microscopy studies of a semi-covalently surface imprinted polymer

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Authors of the article describe a post-imprinting modification of the imprinted molecular cavities for electrochemical sensing of a target protein. These mesoporous cavities were modified with a ferrocene ‘electrochemical’ tracer for electrochemical transduction of the target protein recognition.

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Kalecki, Jakub; Cieplak, Maciej; Iskierko, Z.; Piechowska, Joanna; Nogala, Wojciech; D'Souza, Francis et al. January 25, 2023.

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Authors of the article describe a post-imprinting modification of the imprinted molecular cavities for electrochemical sensing of a target protein. These mesoporous cavities were modified with a ferrocene ‘electrochemical’ tracer for electrochemical transduction of the target protein recognition.

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11 p.

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Abstract: Herein we described a post-imprinting modification of the imprinted molecular cavities for electrochemical sensing of a target protein. Imprinted molecular cavities were generated by following the semi-covalent surface imprinting approach. These mesoporous cavities were modified with a ferrocene ‘electrochemical’ tracer for electrochemical transduction of the target protein recognition. Electrochemical sensors prepared after post-imprinting modification showed a linear response in the concentration range of 0.5 to 50 μM. Chemosensors fabricated based on capacitive impedimetric transduction demonstrated that imprinted molecular cavities without post-imprinting modification showed better selectivity. Scanning electrochemical microscopy (SECM) was used for the surface characterization of imprinted molecular cavities modified with ferrocene electrochemical tracers. SECM analysis performed in the feedback mode monitor changes in the surface state of the ferrocene-modified polymer film. The kinetics of the mediator regeneration was almost 1.8 times higher on the non-imprinted surface versus the post-imprinting modified molecular imprinted polymer.

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  • Journal of Materials Chemistry B, 11(8), Royal Society of Chemistry, January 25, 2023, pp. 1-12

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  • Publication Title: Journal of Materials Chemistry B
  • Volume: 11
  • Issue: 8
  • Page Start: 1659
  • Page End: 1669
  • Peer Reviewed: Yes

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  • January 25, 2023

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  • Oct. 12, 2023, 2:15 p.m.

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  • Oct. 23, 2023, 10:37 a.m.

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Kalecki, Jakub; Cieplak, Maciej; Iskierko, Z.; Piechowska, Joanna; Nogala, Wojciech; D'Souza, Francis et al. Post-imprinting modification: electrochemical and scanning electrochemical microscopy studies of a semi-covalently surface imprinted polymer, article, January 25, 2023; (https://digital.library.unt.edu/ark:/67531/metadc2179424/: accessed April 27, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT College of Science.

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