This book presents and discusses current research in the study of nanocomposites, nanoparticles and nanotubes. Topics discussed include optics of nanoparticles; STM-based nanopatterning of silicon nanoparticle films; rare earth gadolinium nanoparticles; micro-topiary laser pruning of carbon nanotubes; filling of nanocomposites with a high-elasticity matrix and doped armchair carbon nanotubes.