STM characterization of DNA immobilized via Zr ion glue onto gold thiol SAMs

被引：5
|
作者：
Pourbeyram, S. [1 ]
Shervedani, R. K. [2 ]
Sabzyan, H. [2 ]
机构：
[1] Payame Noor Univ, Dept Chem, Tehran, Iran
[2] Univ Isfahan, Dept Chem, Esfahan, Iran
来源：
SURFACE SCIENCE | 2013年 / 616卷
关键词：
Scanning tunneling microscopy (STM); Self assembled monolayers (SAMs); Layer-by-layer (LBL); DNA; Zirconium (IV); SCANNING-TUNNELING-MICROSCOPY; SELF-ASSEMBLED MONOLAYERS; MERCAPTOPROPIONIC ACID; 3-MERCAPTOPROPIONIC ACID; AU(111); SITU; HYBRIDIZATION; MOLECULES; PHOSPHATE; FILMS;
D O I：
10.1016/j.susc.2013.05.006
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this paper layer-by-layer (LBL) assembly of calf thymus DNA (ct-DNA) onto gold-mercaptopropionic acid self-assembled monolayer via Zr(IV) ion glue, Au-MPA-Zr(IV)-ct-DNA SAM, is monitored by scanning tunneling microscopy (STM) technique. The STM images of Au-MPA-Zr(IV) template show well-organized arrays of rod-like peaks. ct-DNA has been immobilized on the Au-MPA-Zr(IV) surface in hilly forms, implying globular structure for the immobilized ct-DNA. This immobilization strategy offers a simple and fast method to prepare the Au-MPA-Zr(IV)-ct-DNA template with promising applications for immobilization and study of the other compounds. (C) 2013 Elsevier B.V. All rights reserved.
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页码：100 / 103
页数：4
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