Technical Comments

Response to Comment on “Enhanced water permeability and tunable ion selectivity in subnanometer carbon nanotube porins”

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Science  30 Mar 2018:
Vol. 359, Issue 6383, eaaq1241
DOI: 10.1126/science.aaq1241

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Horner and Pohl argue that high water transport rates reported for carbon nanotube porins (CNTPs) originate from leakage at the nanotube-bilayer interface. Our results and new experimental evidence are consistent with transport through the nanotube pores and rule out a defect-mediated transport mechanism. Mechanistic origins of the high Arrhenius factor that we reported for narrow CNTPs at pH 8 require further investigation.

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