The DOI matches its Crossref record; 42 of the 42 references it cites were found in a registry or an index.
Electrostatic gating of a nanometer water channel
Open accessAbstract
Water permeation across a single-walled carbon nanotube (SWNT) under the influence of a mobile external charge has been studied with molecular dynamics simulations. This designed nanopore shows an excellent on–off gating behavior by a single external charge (of value +1.0e): it is both sensitive to the available charge signal when it is close (less than a critical distance of 0.85 Å or about half the size of a water molecule) and effectively resistant to charge noise, i.e., the effect on the flow and net flux across the channel is found to be negligible when the charge is >0.85 Å away from the wall of the nanopore. This critical distance can be estimated from the interaction balance for the water molecule in the SWNT closest to the imposed charge with its neighboring water molecules and with the charge. The flow and net flux decay exponentially with respect to the difference between these two interaction energies when the charge gets closer to the wall of the SWNT and reaches a very small value once the charge crosses the wall, suggesting a dominating effect on the permeation properties from local water molecules near the external charge. These findings might have biological implications because membrane water channels share a similar single-file water chain inside these nanoscale channels.
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Self-citationElectrically controlled water permeation through graphene oxide membranes
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A charge-driven molecular water pump
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Metadata
- Authors
- Li, J., Gong, X., Lu, H., Li, D., Fang, H., & Zhou, R.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 2007-03-06
- Volume
- 104
- Issue
- 10
- Pages
- 3687-3692
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W1979794054
- Cited by
- 314
- References
- 42
- FWCI
- 15.54
- Type
- journal article
- Language
- en
- Open access
- green
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