“…It has proven to be a facile, cost-and timeeffective technique that enables highly efficient encapsulation of a variety of drugs/cargo in the shell, as well as the core of the capsules. Our group has utilized this technique to synthesize protein microcapsules of BSA [83], HSA, and egg albumin [84], encapsulating a variety of hydrophilic and hydrophobic cargo, including gemcitabine [20], ribonucleic acid (RNA) [16,35], rhodamine B [85], MSQ (12i) 1-methyl-4-(substituted) styryl-quinolinium derivative [85,86], etc. During ultrasonication-assisted emulsification, the size of the protein microspheres depends on the nature of the oil-water interface, viscosity, surface tension, and hydrophobicity of the organic phase.…”