Interactions between Cd 2+ ions and salmon sperm DNA were investigated via UV Vis, Circular Dichroism(CD) and FT Raman spectroscopies. The experimental results show that Cd 2+ ions can coordinate with the phosphate gr...Interactions between Cd 2+ ions and salmon sperm DNA were investigated via UV Vis, Circular Dichroism(CD) and FT Raman spectroscopies. The experimental results show that Cd 2+ ions can coordinate with the phosphate groups of DNA and thus induce conformation changes of the DNA from B to A type.展开更多
DNA/octadecylamine(ODA) monolayers were transferred onto silicon substrates and the morphologies of the monolayers were investigated by Atomic Force Microscope(AFM). AFM images show that the morphologies of DNA dissol...DNA/octadecylamine(ODA) monolayers were transferred onto silicon substrates and the morphologies of the monolayers were investigated by Atomic Force Microscope(AFM). AFM images show that the morphologies of DNA dissolved in pure water are very different from those of DNA dissolved in the NaCl solution. When DNA molecules are dissovled in pure water, they will form ball-like structure in the monolayer. When the DNA molecules are dissolved in NaCl solution, they will form bunch lines. This DNA line offers a valuable template to direct the formation of unique inorganic nanomaterials.展开更多
文摘Interactions between Cd 2+ ions and salmon sperm DNA were investigated via UV Vis, Circular Dichroism(CD) and FT Raman spectroscopies. The experimental results show that Cd 2+ ions can coordinate with the phosphate groups of DNA and thus induce conformation changes of the DNA from B to A type.
文摘DNA/octadecylamine(ODA) monolayers were transferred onto silicon substrates and the morphologies of the monolayers were investigated by Atomic Force Microscope(AFM). AFM images show that the morphologies of DNA dissolved in pure water are very different from those of DNA dissolved in the NaCl solution. When DNA molecules are dissovled in pure water, they will form ball-like structure in the monolayer. When the DNA molecules are dissolved in NaCl solution, they will form bunch lines. This DNA line offers a valuable template to direct the formation of unique inorganic nanomaterials.
