Template Preparation Techniques and Application of Hollow Micro- or Nano-Particles

The preparation techniques of hollow micro- or nano-particles by using either hard templates or soft templates were reviewed in terms of fabrication mechanism and structure controllability, and with emphasis on the recent progress of such preparation methods as layer-by-layer assembly, surface chemical reaction and coprecipitation, micro-encapsulation methods. The relationship between the structure and the performance, as well as the potential applications in areas of materials science, biomedicine, catalysts etc of the hollow micro- or nano-particles were also discussed.