| Single molecule study of DNA conductivity in aqueous environment. | |
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MedLine Citation:
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PMID: 16605576 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The dc electrical conductivity of double stranded DNA is investigated experimentally. Single DNA molecules are manipulated with subpiconewton force and deposited on gold nanoelectrodes by optical traps. The DNA is modified at its ends for specific bead attachments and along the chain to favor charge transfer between the DNA base pair stack and the electrodes. For an electrode separation of 70 nm we find, in aqueous environment, electrical resistances above 100 G Omega indicating that even for weak stretching the double helix is almost insulating at this length scale. |
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Authors:
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O Legrand; D Côte; U Bockelmann |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2006-03-30 |
Journal Detail:
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Title: Physical review. E, Statistical, nonlinear, and soft matter physics Volume: 73 ISSN: 1539-3755 ISO Abbreviation: Phys Rev E Stat Nonlin Soft Matter Phys Publication Date: 2006 Mar |
Date Detail:
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Created Date: 2006-04-11 Completed Date: 2006-06-12 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 101136452 Medline TA: Phys Rev E Stat Nonlin Soft Matter Phys Country: United States |
Other Details:
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Languages: eng Pagination: 031925 Citation Subset: IM |
Affiliation:
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Laboratoire Pierre Aigrain, Département de Physique de l'Ecole Normale Supérieure, 24 rue Lhomond, 75005 Paris, France. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Computer Simulation DNA / chemistry* Elasticity Electric Conductivity Electrochemistry / methods* Models, Chemical* Stress, Mechanical Water / chemistry* |
| Chemical | |
Reg. No./Substance:
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7732-18-5/Water; 9007-49-2/DNA |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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