目的:通过分离黄芪总黄酮(total flavonoids of Astragalus,TFA)所含主要化学成分和分析其组合比例,探讨TFA生物学活性的作用机制。方法:应用不同柱层析分离和光谱鉴定等技术对TFA进行分离,鉴定所得化合物的化学结构,计算各主要成分的...目的:通过分离黄芪总黄酮(total flavonoids of Astragalus,TFA)所含主要化学成分和分析其组合比例,探讨TFA生物学活性的作用机制。方法:应用不同柱层析分离和光谱鉴定等技术对TFA进行分离,鉴定所得化合物的化学结构,计算各主要成分的组合比例。结果:从TFA中分离得到6个化合物,经光谱分析分别鉴定为β-谷甾醇(1)、芒柄花素(2)、毛蕊异黄酮(3)、β-谷甾醇-3-O-β-D-葡萄糖苷(4)、芒柄花素-7-O-β-D-吡喃葡萄糖苷(5)、毛蕊异黄酮-7-O-β-D-吡喃葡萄糖苷(6),经计算这六种化合物在TFA分离出的单体化合物中重量组合比例为23∶11∶12∶3∶22∶29。结论:TFA中主要含有6种化合物,这6种化合物的有机组合比例可能是TFA具有多种生物学活性的物质基础。展开更多
The recent research progress of structure- and size-controlled micro/nano-energetic materials is reviewed, which properties are fundamentally different from those of their corresponding bulk materials. The development...The recent research progress of structure- and size-controlled micro/nano-energetic materials is reviewed, which properties are fundamentally different from those of their corresponding bulk materials. The development of the construction strategies for achieving zero-dimensional (0D), one-dimensional (1D), two-dimensional (2D), and three-dimensional (3D) micro/nanostructures from energetic molecules is introduced. Also, an overview of the unique properties induced by micro/nanostructures and size effects is provided. Special emphasis is focused on the size-dependent properties that are different from those of the conventional micro-sized energetic materials, such as thermal decomposition, sensitivity, combustion and detonation, and compaction behaviors. A conclusion and our view of the future development of micro/nano-energetic materials and devices are given.展开更多
文摘目的:通过分离黄芪总黄酮(total flavonoids of Astragalus,TFA)所含主要化学成分和分析其组合比例,探讨TFA生物学活性的作用机制。方法:应用不同柱层析分离和光谱鉴定等技术对TFA进行分离,鉴定所得化合物的化学结构,计算各主要成分的组合比例。结果:从TFA中分离得到6个化合物,经光谱分析分别鉴定为β-谷甾醇(1)、芒柄花素(2)、毛蕊异黄酮(3)、β-谷甾醇-3-O-β-D-葡萄糖苷(4)、芒柄花素-7-O-β-D-吡喃葡萄糖苷(5)、毛蕊异黄酮-7-O-β-D-吡喃葡萄糖苷(6),经计算这六种化合物在TFA分离出的单体化合物中重量组合比例为23∶11∶12∶3∶22∶29。结论:TFA中主要含有6种化合物,这6种化合物的有机组合比例可能是TFA具有多种生物学活性的物质基础。
基金Sponsored by National Natural Science Foundation of China (21231002,21276026,21271023,21173021,91022006,11202193,11172276,and 11072225)the 111 Project ( B07012)+1 种基金the Program of Cooperation of the Beijing Education Commission ( 20091739006)Specialized Research Fund for the Doctoral Program of Higher Education ( 20101101110031)
文摘The recent research progress of structure- and size-controlled micro/nano-energetic materials is reviewed, which properties are fundamentally different from those of their corresponding bulk materials. The development of the construction strategies for achieving zero-dimensional (0D), one-dimensional (1D), two-dimensional (2D), and three-dimensional (3D) micro/nanostructures from energetic molecules is introduced. Also, an overview of the unique properties induced by micro/nanostructures and size effects is provided. Special emphasis is focused on the size-dependent properties that are different from those of the conventional micro-sized energetic materials, such as thermal decomposition, sensitivity, combustion and detonation, and compaction behaviors. A conclusion and our view of the future development of micro/nano-energetic materials and devices are given.
