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Salmon sperm DNA was used as template to assembly and nucleate CdS nanoparticles. Transmission electron microscopy (TEM) images showed that the CdS nanoparticles formed unique nanostructure which present regular and parallel chains along DNA molecular chain. The width of every chain was about 3 nm. Raman and X ray photoelectron energy spectroscopy (XPS) confirmed that the nucleation sites of CdS nanoparticles were phosphate acid groups of DNA.
Salmon sperm DNA was used as template to assembly and nucleate CdS nanoparticles. Transmission electron microscopy (TEM) images showed that the CdS nanoparticles formed unique nanostructure which presents regular and parallel chains along DNA molecular chain. The width of every chain was about 3 nm. Raman and X ray photoelectron energy spectroscopy (XPS) confirmed that the nucleation sites of CdS nanoparticles were phosphate acid groups of DNA.