Requirements: 1. Maintain the original format and structure. 2. The translation should be accurate, fluent, and natural. 3. Maintain professionalism and consistency. 4. Only return the translation result; do not add any explanations. Original text: When AKG encountered issues such as half-life, the blood-brain barrier, and stability, it had to face significant challenges. Although AKG-Ca improved in stability, its slow dissolution rate led to a delayed peak in blood drug concentration, and its lack of bone-targeting properties also resulted in drawbacks. AKG and AKG-Ca liposomes—also known as liposomal carriers—represent a new approach where the active substance is encapsulated within lipids…