Silica nanospheres formation induced by peroxidase-catalyzed phenol polymerization

查看全文 作　　者：[1]FANGJiangyu;[1]WANGHe;[2]CHENYangt;[1]ZHANGFusuo

机构地区：[1]CollegeofResourcesandEnvironmentalSciences,ChinaAgriculturalUniversity,Beijing100094,China;[2]CollegeofAgronomyGansuAgriculturalUniversity,Lanzhou730070,China

出　　处：《Progress in Natural Science:Materials International》索引2003年第13卷第7期,共4页

基　　金：the Major State Basic Research Development Program of China (Grant No.G199011707) and the National Natural Science Foundation of China (Grant Nos.30170550 and 30170175) 摘　　要：To examine whether lignin-like compound is correlated with silica precipitation in grass, a series of simulated chemical experiments were carried out at ambient temperature and pressure, close to cell wall pH, with phenol polymerization catalyzed by peroxidase in silicon solution. The experiments showed that phenol polymer (a kind of lignin-like substance) caused silica nanosphere precipitation similar to those caused by protein in diatom cell wall previously reported by other authors. The sphere diameter varied with different kinds of phenol and the concentrations of phenol and silicon. Silicon precipitation had phenol and silicon saturation effect, meaning that when the concentration ratio of soluble silicon to phenol exceeded a certain value, the amount of silicon precipitation would decrease. 关键词：过氧化物酶催化石碳酸纳米硅球模拟试验细胞壁 PH值蛋白质饱和作用浓度沉淀聚合体单体

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Silica nanospheres formation induced by peroxidase-catalyzed phenol polymerization

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