Encased oil core microcapsules

A method for generating capsules with a matrix shell encasing an oil core, the method comprising the steps:

• a. providing in a first chamber a core-forming emulsion comprising an aqueous dispersed phase in an oil phase, the aqueous dispersed phase comprising water and a gelation-inducing agent, the emulsion further comprising a first surfactant;
• b. providing in a second chamber a second aqueous solution, the aqueous solution comprising water and a second surfactant, wherein the first chamber and the second chamber are fluidically connected by a plurality of channels;
• c. guiding the core-forming emulsion of step a from the first chamber through the plurality of channels into the second chamber to form a dispersion of the core-forming emulsion of step a in the second aqueous solution of step b;
• d. mixing the dispersion formed in step c with an aqueous shell-forming solution, the aqueous shell-forming solution comprising water and a water soluble matrix-forming agent;
• and
• e. reacting the gelation-inducing agent and the matrix-forming agent in the dispersion formed in step c to form capsules of a water insoluble matrix shell encasing an oil core, wherein the gelation-inducing agent and the matrix-forming agent are configured such that they are capable of undergoing a chemical reaction with each other to form the water insoluble matrix shell.