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Volumn 5, Issue 3, 2005, Pages 421-424

Electronic signature of DNA nucleotides via transverse transport

Author keywords

[No Author keywords available]

Indexed keywords

CHARGE TRANSPORT; ELECTRONIC SIGNATURES; POLYNUCLEOTIDES; TRANSMISSION COEFFICIENTS;

EID: 16244377077     PISSN: 15306984     EISSN: None     Source Type: Journal    
DOI: 10.1021/nl048289w     Document Type: Article
Times cited : (310)

References (31)
  • 1
    • 9244252182 scopus 로고    scopus 로고
    • DNA electronics
    • Nalwa, H. S., Ed.; American Scientific Publishers: New York
    • For a recent review, see, e.g., Di Ventra, M.; Zwolak, M. DNA Electronics in Encyclopedia of Nanoscience and Nanotechnology, Nalwa, H. S., Ed.; American Scientific Publishers: New York, 2004, Vol. 2, p 475. See also Introduction to Nanoscale Science and Technology, Di Ventra, M., Evoy, S., Heflin, R., Eds.; Kluwer Academics: New York, 2004.
    • (2004) Encyclopedia of Nanoscience and Nanotechnology , vol.2 , pp. 475
    • Di Ventra, M.1    Zwolak, M.2
  • 2
    • 16244372190 scopus 로고    scopus 로고
    • Kluwer Academics: New York
    • For a recent review, see, e.g., Di Ventra, M.; Zwolak, M. DNA Electronics in Encyclopedia of Nanoscience and Nanotechnology, Nalwa, H. S., Ed.; American Scientific Publishers: New York, 2004, Vol. 2, p 475. See also Introduction to Nanoscale Science and Technology, Di Ventra, M., Evoy, S., Heflin, R., Eds.; Kluwer Academics: New York, 2004.
    • (2004) Introduction to Nanoscale Science and Technology
    • Di Ventra, M.1    Evoy, S.2    Heflin, R.3
  • 23
    • 0346246276 scopus 로고    scopus 로고
    • and references therein
    • As in previous calculations in similar structures (see, e.g., Di Ventra, M.; Pantelides, S. T.; Lang, N. D. Phys. Rev. Lett. 2000, 84, 979, and references therein), we implicitly assume that transport is occurring via coherent tunneling and that coulomb blockade effects are negligible.
    • (2000) Phys. Rev. Lett. , vol.84 , pp. 979
    • Di Ventra, M.1    Pantelides, S.T.2    Lang, N.D.3
  • 24
    • 16244383632 scopus 로고    scopus 로고
    • note
    • The relaxed structure of each portion of the backbone which is attached to a base is not a local property of the nucleotide, but is instead a property of the nearby sequence and the environment. We therefore first completely relaxed the 2′-deoxyadenosine 5′-monophosphate, from which we took the relaxed phosphate-sugar structure. We then employed this structure for all other nucleotides. We finally relaxed the latter nucleotides, keeping the phosphate-sugar atoms fixed. This also allows each nucleotide to be positioned between the electrodes in a similar way, which ensures that differences in electrical current are due to the bases only.
  • 26
    • 16244385099 scopus 로고    scopus 로고
    • note
    • The choice of the ranges for variations (1) and (6) is dictated by the size of the electrodes, i.e., in an actual experiment and for a polynucleotide, the x-axis rotation and z-axis translation are bound by the distance between probes. The ranges for variations (3), (4), and (5) are limited by the geometry of the [111] surface. The rotation around the y-axis is, on the other hand, arbitrary unless the spatial direction along the x-axis is also limited, as in, e.g., a nanopore.
  • 31
    • 16244384326 scopus 로고    scopus 로고
    • note
    • The coordinates of these sequences have been relaxed by total-energy Hartree-Fock calculations in a similar way to the isolated nucleotides (see ref 23).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.