|This course introduces recent strategies for structuring hard materials (nanoparticles, nanocomposites and hierarchically porous monoliths) by complex fluids. Complex fluids that are typically considered: solutions of large molecules (eg polymers.) Or supramolecular structures (eg micelles..) In ordinary liquids, foams or emulsions. The aim of this course is to illustrate how complex physical concepts of fluid can be applied to the rational design of advanced materials. For each system, the emphasis will be on: structure / properties of the final solid materials; the structure and stability of the complex fluids. Some specific characterization techniques presented.