Synthesis and characterization of mono-disperse, well-ordered and well separated arrays of size selective transition metal/metal oxide nanoparticles for optics, optoelectronics, magnetic recording media, catalysis, chemical reactivity, nanotubes/nanowires growth and biomedicine applications. Block co-polymer micelles, CVD , Controlled growth of carbon nanotubes, SPM based techniques, Thin film techniques, Fabrication of nanofluidic channels for sensing application by lithographic techniques, Nanomaterials characterization.