Abstract
In this year, we lost our leader in ultrafine particle science which was born in 1963 in Japan. This field is again attracting interest as the mesoscopic physics, nano-structure, quantum dot and chemistry and physics of small many body system. The ultrafine particl escience may develop not only in material science but also in the fields of planetary science and echo-technology. In this report, brief summary on books of Uyeda is given. It is then shown that the essence in considering the growth of ultrafine particles is on temperature of the particle, convection and growth in smoke. An example of the controlled growth and characteristic nature of ultrafine particle is shown by using Te crystal. By the use of oxidation of metallic particles, the possibility toward the production of functional particles may be opened. Some fundamental experimental results are summarized. Size effect on the reaction between ultrafine particle and thin film have been indicated. This result shows a new nature in nano particle.
