Comment on "Enhanced water permeability and tunable ion slectivity in subnanometer carbon nanotube porins

Andreas Horner; Peter Pohl

doi:10.1126/science.aap9173

Comment on "Enhanced water permeability and tunable ion slectivity in subnanometer carbon nanotube porins

Andreas Horner, Peter Pohl

Department of Molecular and Membrane Biophysics

Research output: Contribution to journal › Article › peer-review

Abstract

Tunuguntla et al. (Reports, 25 August 2017, p. 792) report that permeation of single-file water occurs faster through carbon nanotubes than through aquaporins. We show that this conclusion violates fundamental thermodynamic laws: Because of its much lower activation energy, aquaporin-mediated water transport must be orders of magnitude faster. Leakage at the nanotube-membrane interface may explain the discrepancy.

Original language	English
Article number	eaap9173
Pages (from-to)	792-793
Number of pages	2
Journal	Science
Volume	359
DOIs	https://doi.org/10.1126/science.aap9173
Publication status	Published - Mar 2018

Fields of science

103 Physics, Astronomy

JKU Focus areas

Engineering and Natural Sciences (in general)

Access to Document

10.1126/science.aap9173

Cite this

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title = "Comment on {"}Enhanced water permeability and tunable ion slectivity in subnanometer carbon nanotube porins",

abstract = "Tunuguntla et al. (Reports, 25 August 2017, p. 792) report that permeation of single-file water occurs faster through carbon nanotubes than through aquaporins. We show that this conclusion violates fundamental thermodynamic laws: Because of its much lower activation energy, aquaporin-mediated water transport must be orders of magnitude faster. Leakage at the nanotube-membrane interface may explain the discrepancy.",

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AU - Pohl, Peter

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AB - Tunuguntla et al. (Reports, 25 August 2017, p. 792) report that permeation of single-file water occurs faster through carbon nanotubes than through aquaporins. We show that this conclusion violates fundamental thermodynamic laws: Because of its much lower activation energy, aquaporin-mediated water transport must be orders of magnitude faster. Leakage at the nanotube-membrane interface may explain the discrepancy.

U2 - 10.1126/science.aap9173

DO - 10.1126/science.aap9173

M3 - Article

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