A pulse-deposition method for scanning tunneling microscopy of deoxyribonucleic acid on graphite
- 1 March 1991
- journal article
- research article
- Published by American Vacuum Society in Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures
- Vol. 9 (2) , 1272-1275
- https://doi.org/10.1116/1.585219
Abstract
Images of three different synthetic DNAs have been obtained by scanning tunneling microscopy (STM) following their deposition on graphite using a voltaic pulse. DNA applied to the STM tip is desorbed during a 4 V/10-mu-s pulse and deposited intact onto the surface of highly oriented pyrolytic graphite. Images of 22, 47, and 100 base-pair molecules show that deposition occurs in close proximity to the tunneling tip and that the molecules appear to deposit singly or in highly oriented groups.This publication has 8 references indexed in Scilit:
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