DISTINCT IMAGING OF THE NUCLEIC-ACID BASES ON SRTIO3(100) SURFACE BY SCANNING-TUNNELING-MICROSCOPY

被引：19

作者：

TANAKA, H ^{[1
]}

KAWAI, T ^{[1
]}

机构：

[1] OSAKA UNIV,INST SCI & IND RES,IBARAKI,OSAKA 567,JAPAN

来源：

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B | 1995年 / 13卷 / 04期

关键词：

D O I：

10.1116/1.588220

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Scanning tunneling microscopy (STM) imaging of four nucleic acid bases, adenine, guanine, thymine, and cytosine, has been performed on the surface of SrTiO3 single-crystal substrates. The images indicate that the bases are deposited as individual molecules in ultrahigh vacuum condition, and can be individually observed by STM. A comparison of the heights and lateral dimensions of the deposited species and also the bias dependence of the heights, enables differentiation between four nucleic acid bases in real space. (C) 1995 American Vacuum Society.

引用

页码：1411 / 1414

页数：4

共 8 条

[1] IMAGING MOLECULAR ADSORBATES - RESOLUTION EFFECTS AND DETERMINATION OF ADSORPTION PARAMETERS [J].