pp. 3201-3209
S&M3385 Research Paper of Special Issue https://doi.org/10.18494/SAM4577 Published: September 28, 2023 Amino-functionalized Cup-stacked Carbon Nanofibers as Electrode Materials for Suppressing Protein Fouling [PDF] Yuka Ashitani, Kazutake Takada, and Kikuo Komori (Received July 13, 2023; Accepted September 22, 2023) Keywords: carbon nanomaterials, graphene edges, electrochemical sensing, electron transfer rate constant
Amino-functionalized cup-stacked carbon nanofibers (CSCNFs), the surface of which provides highly ordered graphene edges and amino groups, were investigated as electrode materials by using typical redox species in electrochemistry, namely, [Fe(CN)6]3–/4– and Fe2+/3+. The electron transfer rate of [Fe(CN)6]3–/4– was accelerated and that of Fe2+/3+ was decelerated by amino groups, mainly owing to the electrostatic interaction and repulsion, respectively. The hydrophilic amino-functionalized CSCNF surface also allowed the suppression of protein adsorption. Thus, the amino-functionalized CSCNFs would be useful electrode materials for biosensing and other electrochemical devices.
Corresponding author: Kikuo KomoriThis work is licensed under a Creative Commons Attribution 4.0 International License. Cite this article Yuka Ashitani, Kazutake Takada, and Kikuo Komori, Amino-functionalized Cup-stacked Carbon Nanofibers as Electrode Materials for Suppressing Protein Fouling, Sens. Mater., Vol. 35, No. 9, 2023, p. 3201-3209. |