The goal of the course is to provide the underlying principles to understand: i) the forces determining the formation, dimension, and shape of nanosystems; ii) the properties of nanosystems compared to molecules and bulk systems; iii) the main methodologies for the characterization of nanosystems, iv) how to prepare different types of nanosystems; v) how the properties of these systems depend on their chemical structure, dimensions, shape and on the environmental conditions; vi) how to utilize them in industrial and biomedical applications.