Abstract: The disclosure relates to porous and non-porous silica capsules (capsules in capsule or core-shell capsules), porous microspheres, as well as their direct phase emulsification process without surfactant and their use, wherein the particles comprise a liposoluble active/payload.

Abstract: The present disclosure relates to spheroidal organosiloxane sub-micron/nanoparticle comprising a network consisting of organosiloxane, and a process to make them.

Abstract: The present disclosure relates to hydrophobicity/hydrophilicity-tunable organosiloxane nano-/microspheres with or without actives/payloads and a one-pot surfactant-free versatile process to make them. The release can be controlled by adjusting the hydrophobicity/hydrophilicity of the organosiloxane nano-/microspheres. The process of preparation comprising i0) separately hydrolyzing one or more silica precursor in a hydrolytic media; i1) combining the pre-hydrolyzed precursors or i2) removing a part of or totality of volatile solvents or i3) preparing a dispersed phase comprising a hydrophilic solvent to provide a dispersed phase; emulsifying, in absence of a surfactant, the dispersed phase of the step i1), i2) or i3) in a continuous phase to provide a water in oil emulsion; i5) adding a condensation catalyst to the emulsion to provide said nano-/microspheres.