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Electron Transfer Rates in DNA Films as a Function of Tether Length

Drummond, T. Gregory and Hill, Michael G. and Barton, Jacqueline K. (2004) Electron Transfer Rates in DNA Films as a Function of Tether Length. Journal of the American Chemical Society, 126 (46). pp. 15010-15011. ISSN 0002-7863. doi:10.1021/ja044910i.

[img] PDF (Tabulated electrochemical data for the tether series. Plots of CV peak splitting as a function of scan rate and AFM height measurements of DNA monolayers) - Supplemental Material
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A homologous series of DNA-modified electrodes has been investigated in which the molecular tether length varies. Using intercalated, covalently bound daunomycin as a redox probe, an exponential dependence of electron transfer rates on the number of intervening methylene groups in the σ-bonded tether is observed. In contrast, variation in DM position within DNA yields no detectable change in rate. These data confirm that overall electron transfer rates in DNA films are limited by the tether, not the DNA.

Item Type:Article
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URLURL TypeDescription Information
Barton, Jacqueline K.0000-0001-9883-1600
Additional Information:© 2004 American Chemical Society. Received August 23, 2004. Publication Date (Web): October 23, 2004. We are grateful to the NIH (GM61077) and the Camille and Henry Dreyfus Foundation.
Funding AgencyGrant Number
Camille and Henry Dreyfus FoundationUNSPECIFIED
Issue or Number:46
Record Number:CaltechAUTHORS:20160209-120729202
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Official Citation:Electron Transfer Rates in DNA Films as a Function of Tether Length T. Gregory Drummond, Michael G. Hill, and Jacqueline K. Barton Journal of the American Chemical Society 2004 126 (46), 15010-15011 DOI: 10.1021/ja044910i
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:64332
Deposited By: George Porter
Deposited On:09 Feb 2016 21:00
Last Modified:10 Nov 2021 23:29

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