S. Kawabata, N. Ishikawa, M. Mitsui, A. Nakajima,
"Fabrication and Characterization of a Granular Film Consisting of Size-selected Silver Nanoparticles: Application to a SERS Substrate"
Eur. Phys. J. D, in press (2006).
 Y. Naono, S. Kawabata, S. H. Huh, A. Nakajima,
"Classification and Characterization of Gold and Nickel Nanoparticles with a Differential Mobility Analyzer"
Sci Tech. Adv. Material 7, 209 (2006).