
Keywords: نفوذ درونی; Opiorphin; In situ nasal delivery; PEGylated liposomes; Thermosensitive hydrogel; Mucoadhesion; Ex vivo permeation; Opiorphin (PubChem CID: 25195667); Sodium glycerophosphate hydrate (PubChem CID: 22251426); Chitosan (PubChem CID: 21896651); Hydroxypropyl