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Stability of N-Heterocyclic Carbene Monolayers under Continuous Voltammetric Interrogation by Miguel Aller Pellitero; Isabel M. Jensen; Nathaniel L. Dominique; Lilian Chinenye Ekowo; Jon P. Camden; David M. Jenkins; Netzahualcóyotl Arroyo-Currás is a Engineering article available to read on EtoBox.
What is Stability of N-Heterocyclic Carbene Monolayers under Continuous Voltammetric Interrogation about?
N-Heterocyclic carbenes (NHCs) are promising monolayer-forming ligands that can overcome limitations of thiolbased monolayers in terms of stability, surface functionality, and reactivity across a variety of transition-metal surfaces. Recent publications have reported the ability of NHCs to support biomolecular receptors on gold substrates for sensing applications and improved tolerance to prolonged biofluid exposure relative to thiols. However, important questions remain regarding the stability of these monolayers when subjected to voltage perturbations, which is needed for applications with electrochemical platforms. Here, we investigate the ability of two NHCs, 1,3-diisopropylbenzimidazole and 5-(ethoxycarbonyl)-1,3-diisopropylbenzimidazole, to form monolayers via self-assembly from methanolic solutions of their trifluoromethanesulfonate salts. We compare the electrochemical behavior of the resulting monolayers relative to that of benchmark mercaptohexanol monolayers in phosphatebuffered saline. Within the -0.15 to 0.25 V vs Ag|AgCl voltage window, NHC monolayers are stable on gold surfaces, wherein they electrochemically perform like thiol-based monolayers and undergo similar re
Who reads Stability of N-Heterocyclic Carbene Monolayers under Continuous Voltammetric Interrogation?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Miguel Aller Pellitero; Isabel M. Jensen; Nathaniel L. Dominique; Lilian Chinenye Ekowo; Jon P. Camden; David M. Jenkins; Netzahualcóyotl Arroyo-Currás
- Publisher
- American Chemical Society (ACS)
- Published
- 2023
- Language
- EN
- Field
- Engineering (Physical Sciences)