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Nanoparticles mimic enzyme

机译:纳米模拟酶

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Researchers at the University of California, Santa Barbara. USA, have synthesized a nanostructure that can catalyze the formation of silica at low temperatures and neutral pH. To achieve this, the team copied the polysiloxane-synthesizing enzyme found in the orange puffball sponge Tethya aurantia, which lives in seawater. "When you remove the tissue [of the sponge] you're left with a handful of fibreglass needles as fine as spun glass 01 cotton," said Daniel Morse of the University of California, Santa Barbara. "This primitive skeleton supports the structure of the sponge, and we've discovered how this glass is made biologically." Morse and colleagues found that protein filaments acted as both catalysts and templates for the formation of the sponge's silica needles. Analysis of the proteins revealed that they are members of a "super-family" of proteolytic and hydrolytic enzymes.
机译:加州大学圣塔芭芭拉分校的研究人员。美国已经合成了可以在低温和中性pH下催化二氧化硅形成的纳米结构。为了实现这一目标,研究小组复制了生活在海水中的橙色泡泡球海绵Tethya aurantia中发现的聚硅氧烷合成酶。加利福尼亚大学圣塔芭芭拉分校的丹尼尔·莫尔斯说:“当去除(海绵)组织时,会留下少量与旋转玻璃01棉一样细的玻璃纤维针。” “这个原始的骨架支撑着海绵的结构,并且我们发现了这种玻璃是如何生物学制造的。”莫尔斯和同事发现蛋白质丝既是海绵硅石针形成的催化剂又是模板。对蛋白质的分析表明,它们是蛋白水解和水解酶“超家族”的成员。

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