2021
DOI: 10.1063/5.0049550
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Electrostatic gating of ion transport in carbon nanotube porins: A modeling study

Abstract: Carbon nanotube porins (CNTPs) are biomimetic membrane channels that demonstrate excellent biocompatibility and unique water and ion transport properties. Gating transport in CNTPs with external voltage could increase control over ion flow and selectivity. Herein, we used continuum modeling to probe the parameters that enable and further affect CNTP gating efficiency, including the size and composition of the supporting lipid membrane, slip flow in the carbon nanotube, and the intrinsic electronic properties o… Show more

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Cited by 6 publications
(4 citation statements)
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“…In a recent work, Yao et al used COMSOL simulations to investigate the gating of carbon nanotube porins (CNTP). 40 In addition to the longitudinal voltage along the CNTP axis, they used a gate voltage in the lateral direction to control the ion current through the CNTP.…”
Section: ■ Results and Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…In a recent work, Yao et al used COMSOL simulations to investigate the gating of carbon nanotube porins (CNTP). 40 In addition to the longitudinal voltage along the CNTP axis, they used a gate voltage in the lateral direction to control the ion current through the CNTP.…”
Section: ■ Results and Discussionmentioning
confidence: 99%
“…Also, because the conduction of Na + and Cl – through the CNT should be in direct competition, the active reduction of Cl – flux will clearly promote the Na + conduction. In a recent work, Yao et al used COMSOL simulations to investigate the gating of carbon nanotube porins (CNTP) . In addition to the longitudinal voltage along the CNTP axis, they used a gate voltage in the lateral direction to control the ion current through the CNTP.…”
Section: Resultsmentioning
confidence: 99%
“…Another promising approach is that of carbon nanoporins 68 very short, subnanometer carbon nanotubes that are known to spontaneously insert in lipidic membranes. These channels display rich physical properties like voltage gating 69,70 , and could be used to create ionic machines with cell-like design.…”
Section: Discussion: Towards a Bio-inspired Machinerymentioning
confidence: 99%
“…Recent developments in the technology to manipulate, manufacture, and fabricate atoms and molecules at the nanoscale level enable the production of nanofluidic devices that exhibit excellent transport and electrokinetic properties. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] One of the examples is the ultra-high hydrodynamic permeability of water flowing through carbon nanotubes. [3][4][5] The carbon surface was experimentally demonstrated to be hydrophobic, with the slip length on the micrometer scale.…”
Section: Introductionmentioning
confidence: 99%