Real space observation of double-helix DNA structure using a low temperature scanning tunneling microscopy

Authors
Kanno, T Tanaka, H Nakamura, T Tabata, H Kawai, T
Citation
T. Kanno et al., Real space observation of double-helix DNA structure using a low temperature scanning tunneling microscopy, JPN J A P 2, 38(6AB), 1999, pp. L606-L607
Citations number
16
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS → ACNP
Volume
38
Issue
6AB
Year of publication
1999
Pages
L606 - L607
Database
ISI
SICI code
Abstract
Reproducible, reliable and high resolution low temperature scanning tunneli ng microscopy (LT-STM) images of plasmid DNA (deoxyribonucleic acid) (2739 bp), deposited on a well-defined Cu(lll) substrate using pulse injection me thod under ultra-high vacuum (UHV) condition, have been obtained by using a novel sample preparation technique. These particular low temperature: LT-U HV-STM images have revealed the double-helix structures of the DNA that hav e not been resolved earlier.