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Driven DNA Transport into an Asymmetric Nanometer-Scale Pore
Abstract
To understand the mechanism by which individual DNA molecules enter nanometer-scale pores, we studied the concentration and voltage dependence of polynucleotide-induced ionic-current blockades of a single alpha-hemolysin ion channel. We find that the blockade frequency is proportional to the polymer concentration, that it increases exponentially with the applied potential, and that DNA enters the pore more readily through the entrance that has the larger vestibule. We also measure the minimum value of the electrical potential that confines a modified polymer inside the pore against random diffusion and repulsive forces.
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Cites
Reaction-rate theory: fifty years after Kramers
Hänggi, P., Talkner, P., & Borkovec, M. (1990) · Reviews of Modern Physics · doi:10.1103/revmodphys.62.251 · Cited by 6,154
Cited by
Slowing DNA Translocation in a Solid-State Nanopore
Fologea, D., Uplinger, J., Thomas, B., McNabb, D. S., & Li, J. (2005) · Nano Letters · doi:10.1021/nl051063o · Cited by 567
Single-nucleotide discrimination in immobilized DNA oligonucleotides with a biological nanopore
Stoddart, D., Heron, A. J., Mikhailova, E., Maglia, G., & Bayley, H. (2009) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0901054106 · Cited by 482
Breton, M. F., Discala, F., Bacri, L., Foster, D., Pelta, J., & Oukhaled, A. (2013) · The Journal of Physical Chemistry Letters · doi:10.1021/jz400938q · Cited by 63
Metadata
- Authors
- Henrickson, S. E., Misakian, M., Robertson, B., & Kasianowicz, J. J.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2000-10-02
- Volume
- 85
- Issue
- 14
- Pages
- 3057-3060
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W1989918649
- Cited by
- 501
- References
- 1
- FWCI
- 13.81
- Type
- journal article
- Language
- en
- Open access
- closed
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