Imaging of Nucleic Acid Base Molecules on Pd(110) Surfaces by Scanning Tunneling Microscopy
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概要
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Scanning tunneling microscopy (STM) images have been obtained for the nucleic acid bases, adenine and thymine, deposited on Pd(110) single-crystal substrates in order to study the electronic structure and interaction between the DNA bases. The adenine and thymine molecular images are different, with distinct shapes and lateral dimensions that reflect the contours of the calculated molecular orbitals. Thus, adenine has triangular protrusions with lateral dimensions of 〜0.8 nm and thymine has round features of diameter 〜0.45 nm. Adenine tends to form diners whereas thymine forms islands even at low eoverages.
- 社団法人応用物理学会の論文
- 1996-02-15
著者
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TANAKA Hiroyuki
The Institute of Scientific and Industrial Research, Osaka University
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Yoshinobu Jun
The Institute For Solid State Physics The University Of Tokyo
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Kawai Tomoji
The Institute Of Science And Industrial Research (isir-sanken) Osaka University
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Kawai Maki
The Institute Of Physical And Chemical Research
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Tanaka Hiroyuki
The Institute Of Science And Industrial Research (isir-sanken) Osaka University:jst Presto
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