This book defines the concept of nanoparticles from the point of view of statistical physics and quantum physics. It gives an overview of their basic properties and of the basic methods of their preparation. The chapters are devoted to the problems of interactions between nanoparticles from elementary van der Waals interaction to Lifchitz macroscopic theory and Hamaker microscopic summation method. It elucidates the process of self-organization of nanoparticles released from the frozen liquid dispersion at the sublimation interface and mathematical simulations of the corresponding processes. It also presents applications of a completely new controlled sublimation technology.