№ files_lp_4_process_3_101520
Year: 2026
Region / city: Torino, Italy; Parma, Italy
Subject: Pharmaceutical formulation stability; pulmonary drug delivery
Document type: Research article
Institution: Politecnico di Torino; Chiesi Farmaceutici S.p.A.
Authors: Lorena Pasero, Adamo Sulpizi, Tomaso Guidi, Roberto Pisano
Target audience: Pharmaceutical scientists, formulation researchers
Study period: 2026
Methods: Spray freeze-drying, scanning electron microscopy, X-ray diffraction
Active substances: Salbutamol sulphate, mannitol
Excipients: L-leucine, dextran, polysorbate 80
Storage conditions tested: Room temperature, 5°C, -20°C
Intermediate freezing step: 1 h, 5 h
Key findings: Dextran stabilizes δ-mannitol, prevents recrystallization and morphological changes
Context: Experimental study on the stability and morphological changes of spray freeze-dried mannitol microparticles for inhalation delivery under different storage and formulation conditions
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