武汉工程大学摘 要海藻酸钠是一种天然多糖，具有优良的生物相容性、生物可降解性和生物黏附性。海藻酸钠磁性纳米球在药物载体方面有了较深入的研究。其分子链上丰富的羟基和羧基可以进行多种修饰，海藻酸钠与钙离子发生离子反应生成球形海藻酸钙骨架，可以作为药物载体。以高分子包裹纳米微粒是目前解决纳米药物载体分散和缓释问题较常用的方法。关键词 ：海藻酸钠；药物载体；纳米球；交联AbstractSodium alginate is a natural polysaccharide,which has excellent biocompatibility, biodegradable and bioadhesive. The sodium alginate magnetic nanoparticles as a drug carrier has been researched deeply. the molecular chain has rich hydroxyl and carboxyl
