2009 Volume 27 Pages 119-129
Nanoparticles are now an indispensable material for science and technology such an in materials, medicals, and cosmetics areas. Controlling the dispersion stability of nanoparticles in various liquid media is an essential issue to control the properties of the final products. At the beginning of this review, we will introduce several reasons why it is difficult to control the stability of nanoparticles in liquid media. Then, we will briefly review the surface modification techniques to overcome the difficulties of handling nanoparticles in liquids. Two types of surface modification concepts, post-synthesis surface modification and in-situ surface modification, which is a surface modification on manufactured particles and surface modification during the particle synthesis, respectively, will be introduced.
