title: DNA assisted fragmentation of nickel nanoparticle clusters and their spectral properties.
abstract: Nickel nanoparticle (NiNP) clusters in the range of 60-70 nm size on interaction with herring-sperm DNA (B-DNA) form a self-assembled duplex helix DNA structure with fragmented NiNPs as small as 5-15 nm, as evident from atomic force microscopic studies. Scanning electron microscope (SEM) and transmission electron microscope (TEM) images also corroborate the findings. The properties of these self-assembled NiNPs-DNA structures have been further investigated by UV-visible, emission and circular dichroic (CD) spectral studies.
authors.affiliation: Department of Inorganic Chemistry, Madurai Kamaraj University, Madurai-625 021, India.
authors.forename: Natarajan
authors.initials: N
authors.lastname: Prabakaran
authors.forename: Periakaruppan
authors.initials: P
authors.lastname: Athappan
mesh_terms: D004247:DNA / Q000737:chemistry* / Q000378:metabolism; D053768:Metal Nanoparticles / Q000737:chemistry*; D018625:Microscopy, Atomic Force; D008854:Microscopy, Electron; D015394:Molecular Structure; D009532:Nickel / Q000737:chemistry*; D009690:Nucleic Acid Conformation; D010316:Particle Size; D013057:Spectrum Analysis
chemical_list: D009532:Nickel; D004247:DNA