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Study of substrate-directed ordering of long double-stranded DNA molecules on bare highly oriented pyrolytic graphite surface based on atomic force microscopy relocation imaging

Wang, Huabin; An, Hongjie; Zhang, Feng; Zhang, Zhixiang; Ye, Ming; Xiu, Peng; Zhang, Yi; Hu, Jun


Usually, long double-stranded DNA molecules exhibit an aggregated or a random spreading behavior when deposited on a highly ordered pyrolytic graphite (HOPG) substrate. In this article, the authors report a novel phenomenon where randomly oriented DNA strands can gradually be rearranged into two-dimensional ordered nanostructures under the operation of repeatedly rotating a water droplet on the DNA sample. The process of DNA rearrangement was traced by using atomic force microscopy relocation...[Show more]

CollectionsANU Research Publications
Date published: 2008-09-08
Type: Journal article
Source: Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures
DOI: 10.1116/1.2968698


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