DNA on HOPG modified with 1-Octadecylamine
- Friday Feb 18,2011 02:33 AM
- By yalovenko
- In Applications, Biology, News
AFM phase image of hexaglycylamide lamellae (type I) on HOPG. Number of points 1024×1024. Image courtesy of Dr. V. V. Prokhorov, M.M.Shemyakin & Y.A.Ovchinnikov Institure of Bioorganic Chemistry, RUS, Moscow, Russia. The structural models are represented in “High-resolution Atomic Force Microscopy Study of Hexaglycylamide Epitaxial Structures on Graphite” by V. V. Prokhorov, D.V. Klinov, A. A. Chinarev, A. B.Tuzikov, I. V. Gorokhova, N. V. Bovin, Langmuir, 2011 in press.
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In this phase image, the lower right nanoparticle clearly shows the pentagonal shape. The ability to distinguish the shape of such a small nanoparticle despite significant convolution effect is quite an impressive result. Click to see additional 600x600nm topography and phase images of this nanoparticle as well as 300x300nm images. |
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AIST-NT’s AFM provides clear advantages in nanoparticle imaging compared to SEM. Nanoparticles sized from 30 to 150 nm can be imaged without disturbing their position on the substrate.