Electrochemical behavior of oxazoline-based plasma polymers for biosensing applications
Date
2023
Authors
Gheorghiu, A.
Yang, D.
Delcheva, I.
Priest, C.
MacGregor, M.
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Journal article
Citation
Plasma Processes and Polymers, 2023; 20(8):1-14
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Abstract
Plasma-polymerized polyoxazoline (POx) thin films offer a fast, scalable, and solvent-free method of electrode functionalization through the unique chemistry of the oxazoline ring. However, for POx to be a viable green alternative to existing surface modification approaches, the films should be able to withstand the processing steps involved in biosensing. Here, the effects that current exposure, extended incubation, and repeated electrode rinses have on the electrochemical and physical stability of polymethyloxazoline thin films are investigated. The films are observed to become more diffusive after incubation and rinse steps. While no significant changes in chemistry were observed, a marked change in nanotopography occurred after exposure to current, suggesting a change in the polymer film structure.
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Data source: Supporting information, https://doi.org/10.1002/ppap.202200233
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Copyright 2023 The Authors. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made. (https://creativecommons.org/licenses/by-nc-nd/4.0/)
Access Condition Notes: Open access publishing facilitated by Flinders University, as part of the Wiley - Flinders University agreement via the Council of Australian University Librarians.