Liquids, solutions and confined systems.- How pure water can unmix.- X-ray spectroscopies and scattering applied to water: What can we learn from experiment and simulations?.- Different variety of water states.- Self-assembling chains and reversible spatial networks in liquid solutions.- Liquid confined systems.- Critical phenomena.- Predicting the critical data of metals.- Some fundamental considerations on the problem how virial expansion and chemical equilibrium are connected in statistical mechanics.- Review on the criticality of coulomb systems.- Supercritical phenomenon in systems with liquid-liquid phase transitions.- Colloidal systems.- The phases of aqueous suspensions of Laponite.- Colloidal properties and behaviors of 3nm primary particles of detonation nanodiamond in aqueous media.- The interactions between the microemulsion droplets.- Biological systems.- Republic Investigation of protein/nucleic acid interactions by fluorescence-based techniques: illustration on a HIV-1 protein.- Interaction of magnetic fluids with amyloid structures.- Engineered bionanocomposites bound by weak interactions.