Introduction to High-pressure Solvent Systems; Understanding Entrainer Effects in Supercritical CO2; Supercritical Carbon Dioxide Extraction of Lipophilic Molecules; Subcritical Water: Current Status, Advances, and Applications for Extractions, Reactions and Separations; Supercritical Fluid Chromatography (SFC); Heterogeneous Catalysis in Supercritical Carbon Dioxide; Biocatalysis in Supercritical and Liquid Carbon Dioxide and Carbon Dioxide-expanded Liquids; Selective Hydrogenation in Carbon Dioxide-dissolved Expanded Liquid Phases; Electrochemistry in Supercritical Fluids; Materials Processing and Recycling with Near- and Supercritical CO2-based Solvents; Solubility and Synthesis of Polymers Using Supercritical Carbon Dioxide; Incorporation of Drugs and Metals into Aerogels Using Supercritical Fluids; Mathematical Modelling and Computation for Rapid Expansion of Supercritical Solutions; The Engineering of Continuous Hydrothermal/Solvothermal Synthesis of Nanomaterials; The Chemistry of Continuous Hydrothermal/Solvothermal Synthesis of Nanomaterials; Supercritical Water Oxidation: The Next Generation for Abatement of Unrecyclable Waste of Hazardous Nature and Complex Composition; Gas Expanded-liquids; Use of Water and Supercritical Carbon Dioxide in Novel Methodologies for Biomass Processing; Hydrothermal Events Occurring During Gasification in Supercritical Water; Sub- and Supercritical Water Hydrolysis Applied to Agri-food Residues; Applications of Fluids at Supercritical Pressure in the Area of Power Generation – Movements Towards Economically-viable Clean Energy