Escitalopram oxalate-loaded chitosan nanoparticle in situ gel formulation intended for direct nose-to-brain delivery: in vitro, ex vivo, and in vivo pharmacokinetic evaluation - Mujtaba, Md Ali; Rashid, Md Abdur; Godbole, Mangesh D.; Alhamhoom, Yahya; Shende, Divyashri S.; Alshehri, Sameer; Akbar, Mohammad J.; Kaleem, Mohammed; Mahajan, Ujwala N.; Shahzad, Naiyer (Frontiers in Pharmacology, 2025)