Labra-Muñoz JA, de Reuver A, Koeleman F, Huber M, van der Zant HSJ. Ferritin-Based Single-Electron Devices.
Biomolecules 2022;
12:biom12050705. [PMID:
35625632 PMCID:
PMC9138424 DOI:
10.3390/biom12050705]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 05/13/2022] [Accepted: 05/14/2022] [Indexed: 11/26/2022] Open
Abstract
We report on the fabrication of single-electron devices based on horse-spleen ferritin particles. At low temperatures the current vs. voltage characteristics are stable, enabling the acquisition of reproducible data that establishes the Coulomb blockade as the main transport mechanism through them. Excellent agreement between the experimental data and the Coulomb blockade theory is demonstrated. Single-electron charge transport in ferritin, thus, establishes a route for further characterization of their, e.g., magnetic, properties down to the single-particle level, with prospects for electronic and medical applications.
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