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A pulse‐deposition method for scanning tunneling microscopy of deoxyribonucleic acid on graphite

 

作者: Michael J. Allen,   Robert J. Tench,   Joe A. Mazrimas,   Mehdi Balooch,   Wigbert J. Siekhaus,   Rod Balhorn,  

 

期刊: Journal of Vacuum Science&Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena  （AIP Available online 1991）
卷期: Volume 9, issue 2  

页码: 1272-1275

 

ISSN:1071-1023

 

年代: 1991

 

DOI:10.1116/1.585219

 

出版商: American Vacuum Society

 

关键词: DNA;IMAGES;GRAPHITE;SCANNING TUNNELING MICROSCOPY;PULSE TECHNIQUES;DEPOSITION

 

数据来源: AIP

 

摘要:

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 μs 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.

 

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