Intranasal Insulin Delivery: Microparticle Formulations Consisting of Aloe vera Polysaccharides for Advanced Delivery across Excised Olfactory and Respiratory Nasal Epithelial Tissues. - Kirby-Smith, Cassandra; Steenekamp, Jan; Steyn, Dewald; Haasbroek-Pheiffer, Anja; Hamman, Hannlie; Hamman, Josias (Applied Sciences (2076-3417), 2023)