Ceramic Encapsulation By Use of One or More Specialized Silanes To Template Oil In An Oil In Water Emulsion

A method for forming hollow silica-based particles, the method comprising:

• (a) preparing an emulsion including a continuous phase that is polar, and a dispersed phase comprising droplets including a non-polar active ingredient;
• (b) adding a first silica precursor to the emulsion such that the first silica precursor is emulsion templated on the droplets to form hollow silica-based particles having a shell and a core including the non-polar active ingredient,
• wherein the first silica precursor has the general formula (I):
• R1x—Si—(OR2)y (I)
• wherein R1 is selected from substituted and unsubstituted alkyl, aryl, alcohols, amines, amides, aldehydes, acids, esters, and functional groups having an unsaturated carbon-carbon bond, wherein R2 is an alkyl group, wherein x+y=4, and wherein x=0 or 1 or 2;
• and
• (c) adding a second precursor to the emulsion such that a coating can be deposited on at least part of the shell of the hollow silica-based particles.