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Journal
2008 | 6 | 3 | 422-426
Article title

Scanning tunneling spectrosopy study of DNA conductivity

Content
Title variants
Languages of publication
EN
Abstracts
EN
We used STM to study the conductivity of 32 nucleotide long DNA molecules chemically attached to a gold surface. Two oligonucleotides containing all four base types namely G, A, C, T, one single stranded and one double helical, all showed conductance data significantly higher than DNA containing only T and A that were either single stranded d(T32) or double helical d(T32).d(A32) in confirmation. Within each sequence group, the conductivity of the double helical form was always higher than that of the single strand. We discuss the impact of structure, particular base stacking and affinity to the phase transition.
Publisher
Journal
Year
Volume
6
Issue
3
Pages
422-426
Physical description
Dates
published
1 - 9 - 2008
online
17 - 7 - 2008
References
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Document Type
Publication order reference
YADDA identifier
bwmeta1.element.-psjd-doi-10_2478_s11534-008-0072-7
Identifiers
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