Keywords: اندازه ذره ای آیرودینامیکی; APS; aerodynamic particle size; NEMs; nano-embedded microparticles; M:N; matrix to nanoparticle ratio; NPs; nanoparticles; PDI; polydispersity index; PEG; poly(ethylene glycol); PLGA; poly(lactide-co-glycolide); PVP; poly(vinyl pyrrolidone); SD; standard