| chenshuuu | 2013-11-28 22:05 |
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《蛋白-无机杂化纳米花》(Protein inorganic hybrid nanoflowers)是清华大学发表在纳米技术领域国际顶尖学术期刊Nature Nanotechnology上的一篇文章，提出了一种合成含酶杂化纳米花的新方法，并结合生物催化实验证实了纳米花结构能够有效提高酶分子的体外催化活性和催化稳定性。该项成果为进一步研究生物催化�*************************傅娜斯ど杓坪透脑焯峁┝酥匾男路椒ā８孟畛晒校阜肿雍臀藁擅撞牧现涞男饔檬沟煤改擅谆ň哂性陡哂谝话愎潭ɑ傅拇呋钚院臀榷ㄐ浴３晒兴故镜木哂懈叽呋钚院臀榷ㄐ缘拿�-无机纳米花可应用于构建各种新型的功能性蛋白-无机纳米结构，在生物传感器、生化分析器件、生物燃料电池和工业生物催化等领域有着重要的潜在应用价值。 Flower-shaped inorganic nanocrystalshave been used for applications in catalysis and ytical science, but so far there have been no reports of ‘nanoflowers’ made of organic components. Here, we report a method for creating hybrid organic–inorganic nanoflowers using copper (II ) ions as the inorganic component and various proteins as the organic com-ponent. The protein molecules form complexes with the copper ions, and these complexes become nucleation sites for primary crystals of copper phosphate. Interaction between the protein and copper ions then leads to the growth of micrometre-sized particles that have nanoscale features and that are shaped like flower petals. When an enzyme is used as the protein com-ponent of the hybrid nanoflower, it exhibits enhanced enzy-matic activity and stability compared with the free enzyme. This is attributed to the high surface area and confinement of the enzymes in the nanoflowers.   |
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