Kaddour, Nawel2025-02-102025-02-102025-02-10https://dspace.univ-tlemcen.dz/handle/112/24594I would like to express my deepest gratitude to everyone who has helped me along this journey. To those who guided and supported me, your contributions have been invaluable. In particular, I would like to extend my heartfelt thanks to: My supervisor, Prof. Nassima Mohktari-Soulimane, has taken me under her wing throughout this entire experience, offering unwavering support and guidance. Her exceptional availability has had a profound impact on my journey. Not only has she provided invaluable guidance in the scientific realm, but she has also supported and advised me on a personal level, enriching my experience beyond measure. I am deeply grateful for her mentorship and the inspiration she has provided me. I greatly admire the passionate and dedicated person she is, and I aspire to follow in her footsteps. I am also immensely thankful for the countless opportunities she has provided me.enDiabète; Délivrance d'insuline; Insuline sous-cutanée; Insuline orale; NanoparticulesThesis