Capsules

A population of capsules, the capsules comprising:

• an oil-based core comprising a benefit agent;
• and
• a shell surrounding the core, the shell comprising:
• a substantially inorganic first shell component comprising:
• a condensed layer comprising a condensation product of a precursor, and
• a nanoparticle layer comprising inorganic nanoparticles, wherein the condensed layer is disposed between the core and the nanoparticle layer, and
• an inorganic second shell component surrounding the first shell component, wherein the second shell component surrounds the nanoparticle layer, and
• wherein the precursor comprises at least one compound of Formula (I)
• (MvOzYn)w (Formula I),
• where M is one or more of silicon, titanium and aluminum,
• v is the valence number of M and is 3 or 4,
• z is from 0.5 to 1.6
• each Y is independently selected from —OH, —OR2, halo,
• —NH2, —NHR2, —N(R2)2, and
• wherein R2 is a C1 to C20 alkyl, C1 to C20 alkylene, C6 to C22 aryl, or a 5-12 membered heteroaryl comprising from 1 to 3 ring heteroatoms selected from O, N, and S,
• R3 is a H, C1 to C20 alkyl, C1 to C20 alkylene, C6 to C22 aryl, or a 5-12 membered heteroaryl comprising from 1 to 3 ring heteroatoms selected from O, N, and S,
• n is from 0.7 to (v−1), and
• w is from 2 to 2000.