“…Owing to this unique character, the confined assembly of amphiphilic block copolymers driven by interfacial instability gives rise to block copolymer particles with well-defined shapes and internal morphologies. [21][22][23] Commonly, the internal structure and the overall shape of particles could be tuned by adjusting the particle/surrounding solution interfacial property, during which the morphology could be typically influenced by the kind of solvent, the block fraction of the copolymer, and surfactant. [24][25][26] Zhu et al 26,27 investigated that the PVA concentration in the aqueous media plays a critical role in determining the particle shape.…”