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Selective resonant diffusion of ions in an artificial analogue of a biological filter

Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review

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Selective resonant diffusion of ions in an artificial analogue of a biological filter. / Gibby, William A. T.; Barabash, Miraslau L.; Luchinsky, Dmitry G. et al.
2023 International Conference on Noise and Fluctuations (ICNF). IEEE, 2024. p. 1-4.

Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review

Harvard

Gibby, WAT, Barabash, ML, Luchinsky, DG, McClintock, P & Khovanov, IA 2024, Selective resonant diffusion of ions in an artificial analogue of a biological filter. in 2023 International Conference on Noise and Fluctuations (ICNF). IEEE, pp. 1-4. https://doi.org/10.1109/ICNF57520.2023.10472750

APA

Gibby, W. A. T., Barabash, M. L., Luchinsky, D. G., McClintock, P., & Khovanov, I. A. (2024). Selective resonant diffusion of ions in an artificial analogue of a biological filter. In 2023 International Conference on Noise and Fluctuations (ICNF) (pp. 1-4). IEEE. https://doi.org/10.1109/ICNF57520.2023.10472750

Vancouver

Gibby WAT, Barabash ML, Luchinsky DG, McClintock P, Khovanov IA. Selective resonant diffusion of ions in an artificial analogue of a biological filter. In 2023 International Conference on Noise and Fluctuations (ICNF). IEEE. 2024. p. 1-4 Epub 2023 Oct 17. doi: 10.1109/ICNF57520.2023.10472750

Author

Gibby, William A. T. ; Barabash, Miraslau L. ; Luchinsky, Dmitry G. et al. / Selective resonant diffusion of ions in an artificial analogue of a biological filter. 2023 International Conference on Noise and Fluctuations (ICNF). IEEE, 2024. pp. 1-4

Bibtex

@inproceedings{6fcc9bc9c73e414ca0b6566fc960436e,
title = "Selective resonant diffusion of ions in an artificial analogue of a biological filter",
abstract = "We study selective ionic diffusion in a single-walled carbon nanotube (CNT). The wall is charged so as to mimic the structure of the selectivity filters in biological ion channels. We use all-atom molecular dynamics simulations to demonstrate that a charged CNT can closely reproduce many of the selectivity and conductivity properties of the KcsA biological channel. A K+/Na+ selectivity ratio ≳150 and a conduction current Ftable ≳50 pA are demonstrated. It is shown that ionic Coulomb blockade is the key phenomenon underlying the CNT conduction properties. Coulomb blockade theory is used to estimate the excess chemical potential of the ions in the channel and the channel capacitance.",
author = "Gibby, {William A. T.} and Barabash, {Miraslau L.} and Luchinsky, {Dmitry G.} and Peter McClintock and Khovanov, {Igor A.}",
year = "2024",
month = mar,
day = "25",
doi = "10.1109/ICNF57520.2023.10472750",
language = "English",
isbn = "9798350330120",
pages = "1--4",
booktitle = "2023 International Conference on Noise and Fluctuations (ICNF)",
publisher = "IEEE",

}

RIS

TY - GEN

T1 - Selective resonant diffusion of ions in an artificial analogue of a biological filter

AU - Gibby, William A. T.

AU - Barabash, Miraslau L.

AU - Luchinsky, Dmitry G.

AU - McClintock, Peter

AU - Khovanov, Igor A.

PY - 2024/3/25

Y1 - 2024/3/25

N2 - We study selective ionic diffusion in a single-walled carbon nanotube (CNT). The wall is charged so as to mimic the structure of the selectivity filters in biological ion channels. We use all-atom molecular dynamics simulations to demonstrate that a charged CNT can closely reproduce many of the selectivity and conductivity properties of the KcsA biological channel. A K+/Na+ selectivity ratio ≳150 and a conduction current Ftable ≳50 pA are demonstrated. It is shown that ionic Coulomb blockade is the key phenomenon underlying the CNT conduction properties. Coulomb blockade theory is used to estimate the excess chemical potential of the ions in the channel and the channel capacitance.

AB - We study selective ionic diffusion in a single-walled carbon nanotube (CNT). The wall is charged so as to mimic the structure of the selectivity filters in biological ion channels. We use all-atom molecular dynamics simulations to demonstrate that a charged CNT can closely reproduce many of the selectivity and conductivity properties of the KcsA biological channel. A K+/Na+ selectivity ratio ≳150 and a conduction current Ftable ≳50 pA are demonstrated. It is shown that ionic Coulomb blockade is the key phenomenon underlying the CNT conduction properties. Coulomb blockade theory is used to estimate the excess chemical potential of the ions in the channel and the channel capacitance.

U2 - 10.1109/ICNF57520.2023.10472750

DO - 10.1109/ICNF57520.2023.10472750

M3 - Conference contribution/Paper

SN - 9798350330120

SP - 1

EP - 4

BT - 2023 International Conference on Noise and Fluctuations (ICNF)

PB - IEEE

ER -