(-)-EGCG是最丰富的儿茶素，其被认为是化学预防及抗癌剂。然而，(-)-EGCG具有至少一个局限性：其生物利用度差。本发明提供了具有下列通式的化合物，其中R11、R12、R13、R21、R22、R2、R3和R4均各自独立地选自-H和C1-C10酰氧基；以及R5选自-H、C1-C10烷基、C2-C10烯基、C2-C10炔基、C3-C7环烷基、苯基、苯甲基和C3-C7环烯基，同时，最后提到的7个基团中的每一个都可用1到6个卤素原子的任意组合取代；R11、R12、R13、R21、R22、R2、R3和R4中至少有一个是-H，这些化合物被证实比其用作蛋白酶体抑制剂以减少肿瘤细胞生长的未被保护对应物更.....
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The present invention relates to a nano-structured surface, including the base layer, the base layer and the large number of fixed nanoparticles. The surface of the water contact angle greater than 145 degrees. The invention also relates to a method for preparing nano-structured surface in situ, inc.....
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The present invention provides an optical fiber having the gas laser and the laser optical fiber ring laser gyroscopes. The optical fiber comprises a gas laser excitation gas, the excitation source and the optical cavity, characterized in that the optical cavity by the hollow fiber and single mode f.....
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The invention provides a microneedles array, a method for manufacturing the microneedles array and a die for manufacturing the microneedles array. The microneedles array comprises a base and a plurality of microneedles which are integrated with the base, wherein a liquid storage cavity is arranged i.....
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A method for processing odorous compounds polluted air system, which is including plants, microorganisms agglutinative plant body and the packed bed - microbial symbiosis system, wherein the microorganism polymer living body, including bacteria, photosynthetic and heterotrophic algae and yeast ferme.....
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