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Charge Transport across DNA-Based Three-Way Junctions.

Publication ,  Journal Article
Young, RM; Singh, APN; Thazhathveetil, AK; Cho, VY; Zhang, Y; Renaud, N; Grozema, FC; Beratan, DN; Ratner, MA; Schatz, GC; Berlin, YA ...
Published in: Journal of the American Chemical Society
April 2015

DNA-based molecular electronics will require charges to be transported from one site within a 2D or 3D architecture to another. While this has been shown previously in linear, π-stacked DNA sequences, the dynamics and efficiency of charge transport across DNA three-way junction (3WJ) have yet to be determined. Here, we present an investigation of hole transport and trapping across a DNA-based three-way junction systems by a combination of femtosecond transient absorption spectroscopy and molecular dynamics simulations. Hole transport across the junction is proposed to be gated by conformational fluctuations in the ground state which bring the transiently populated hole carrier nucleobases into better aligned geometries on the nanosecond time scale, thus modulating the π-π electronic coupling along the base pair sequence.

Duke Scholars

Published In

Journal of the American Chemical Society

DOI

EISSN

1520-5126

ISSN

0002-7863

Publication Date

April 2015

Volume

137

Issue

15

Start / End Page

5113 / 5122

Related Subject Headings

  • Spectrum Analysis
  • Molecular Dynamics Simulation
  • Models, Molecular
  • Kinetics
  • General Chemistry
  • Electron Transport
  • DNA
  • Base Pairing
  • 40 Engineering
  • 34 Chemical sciences
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Young, R. M., Singh, A. P. N., Thazhathveetil, A. K., Cho, V. Y., Zhang, Y., Renaud, N., … Wasielewski, M. R. (2015). Charge Transport across DNA-Based Three-Way Junctions. Journal of the American Chemical Society, 137(15), 5113–5122. https://doi.org/10.1021/jacs.5b00931
Young, Ryan M., Arunoday P. N. Singh, Arun K. Thazhathveetil, Vincent Y. Cho, Yuqi Zhang, Nicolas Renaud, Ferdinand C. Grozema, et al. “Charge Transport across DNA-Based Three-Way Junctions.Journal of the American Chemical Society 137, no. 15 (April 2015): 5113–22. https://doi.org/10.1021/jacs.5b00931.
Young RM, Singh APN, Thazhathveetil AK, Cho VY, Zhang Y, Renaud N, et al. Charge Transport across DNA-Based Three-Way Junctions. Journal of the American Chemical Society. 2015 Apr;137(15):5113–22.
Young, Ryan M., et al. “Charge Transport across DNA-Based Three-Way Junctions.Journal of the American Chemical Society, vol. 137, no. 15, Apr. 2015, pp. 5113–22. Epmc, doi:10.1021/jacs.5b00931.
Young RM, Singh APN, Thazhathveetil AK, Cho VY, Zhang Y, Renaud N, Grozema FC, Beratan DN, Ratner MA, Schatz GC, Berlin YA, Lewis FD, Wasielewski MR. Charge Transport across DNA-Based Three-Way Junctions. Journal of the American Chemical Society. 2015 Apr;137(15):5113–5122.
Journal cover image

Published In

Journal of the American Chemical Society

DOI

EISSN

1520-5126

ISSN

0002-7863

Publication Date

April 2015

Volume

137

Issue

15

Start / End Page

5113 / 5122

Related Subject Headings

  • Spectrum Analysis
  • Molecular Dynamics Simulation
  • Models, Molecular
  • Kinetics
  • General Chemistry
  • Electron Transport
  • DNA
  • Base Pairing
  • 40 Engineering
  • 34 Chemical sciences