Membrane-Anchored DNA Assembly for Energy and Electron Transfer
Tumpane, John, Ljungdahl, Thomas, Wilhelmsson, L. Marcus, Nordén, Bengt, Brown, Tom and Albinsson, Bo (2009) Membrane-Anchored DNA Assembly for Energy and Electron Transfer. Journal of the American Chemical Society, 131, (8), 2831-2839. (doi:10.1021/ja8038294).
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Description/Abstract
In this work we examine the trapping and conversion of visible light energy into chemical energy using a supramolecular assembly. The assembly consists of a light-absorbing antenna and a porphyrin redox center, which are covalently attached to two complementary 14-mer DNA strands, hybridized to form a double helix and anchored to a lipid membrane. The excitation energy is finally trapped in the lipid phase of the membrane as a benzoquinone radical anion that could potentially be used in subsequent chemical reactions. In addition, in this model complex, the hydrophobic porphyrin moiety acts as an anchor into the liposome positioning the DNA construct on the lipid membrane surface. The results show the suitability of our system as a prototype for DNA-based light-harvesting devices, in which energy transfer from the aqueous phase to the interior of the lipid membrane is followed by charge separation
| Item Type: | Article |
|---|---|
| ISSNs: | 0002-7863 (print) 1520-5126 (electronic) |
| Subjects: | Q Science > QD Chemistry |
| Divisions: | University Structure - Pre August 2011 > School of Chemistry |
| Item ID: | 146685 |
| Date Deposited: | 22 Apr 2010 08:52 |
| Last Modified: | 02 Mar 2012 12:35 |
| Contributors: | Tumpane, John (Author) Ljungdahl, Thomas (Author) Wilhelmsson, L. Marcus (Author) Nordén, Bengt (Author) Brown, Tom (Author) Albinsson, Bo (Author) |
| Date: | 6 February 2009 |
| Status: | Published |
| URI: | http://eprints.soton.ac.uk/id/eprint/146685 |
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