Abstract: A method for producing shelled, fine carbon particles is provided. In the method, a hydrocarbon compound in the form of droplets being derived in a flame or during pyrolysis is irradiated with a laser beam to induce physical structural changes as well as chemical reactions in the precursor compound, so that shelled, fine carbon particles with a core-empty crystalline structure can be continuously formed.

Abstract: A nano-sized structure can be accurately patterned with no significant noise generation by the inventive method which comprises the steps of (i) placing a plate having a nano-scale pattern formed thereon on the electrode of an externally grounded electrostatic precipitator and applying a voltage on the electrode, and (ii) introducing bipolar-charged monodispersive nanoparticles into the electrostatic precipitator together with a carrier gas and guiding the migration of the bipolar-charged nanoparticles to said pattern on the plate, by the action of an electric field generated by the applied and grounded voltage difference generated in the electrostatic precipitator.