Synthesis of Ordered Biosilica Materials
WANG,Li-Jun(王荔军) ;WANG,Yun-Hua(王运华);LI,Min(李敏);FAN,Ming-Sheng(范明生);ZHANG,Fu-Suo(张福锁);WU,Xue-Min(吴学民);YANG,Wen-Sheng(杨文胜);LI,Tie-Jin(李铁津)
【期刊名称】《中国化学（英文版）》 【年(卷),期】2002(020)001
【摘要】Biogenic silica with amazing diversity of nanostructure shells,fibers and granules in diatoms and sponges is mediated by proteins and polysaccharides and forms at ambient pressure and temperatures. Chemical synthetic methods, in contrast,have to rely on extreme pH and/or surfactants to induce the condensation of silica precursors into specific patterns. One kind of benign synthesis method through plant cell wall template-directed ordered biosilica materials under ambient conditions is intriguing in this context. Organized silica materials in intercellular spaces of epidermal cells of tall fescue leaves were synthesized through molecular recognition between Si-OH and polysaccharide-OH or glycoprotein-OH of main components of plant cell walls and cellular processing as well when Si(OEt)4 was supplied rather than monosilicic acid. The biosynthesis of structural silica in tall fescue plant was correlated with the Si species applied, reflecting the slower coudensation from tetraethoxrsilane (TEOS) and thus providing greater opportunities for structural control by the underlying matrix of
cell walls. The composition was estimated by energy dispersive Xray (EDX) spectra on a scanning electron microscope. All organized structures showed carbon, oxygen and silicon peaks,indicating that their formations differ from natural siliceous process. 【总页数】4页(107-110) 【
关
键
词
】
ordered
biosilica
material;template
synthesis;biomineralization;cell wall;tall fescue plant
【作者】WANG,Li-Jun(王荔军) ;WANG,Yun-Hua(王运华);LI,Min(李敏);FAN,Ming-Sheng(范明生);ZHANG,Fu-Suo(张福锁);WU,Xue-Min(吴学民);YANG,Wen-Sheng(杨文胜);LI,Tie-Jin(李铁津)
【作者单位】Department of Resource, Environments & Agrochemistry, Huazhong
Agricultural
University,
Wuhan,
Hubei
430070,
China;Department of Plant Nutrition, China Agricultural University, Beijing 100094, China;Department of Resource, Environments & Agrochemistry, Huazhong Agricultural University, Wuhan, Hubei 430070, China;Department of Plant Nutrition, China Agricultural University, Beijing 100094, China;Department of Plant Nutrition, China Agricultural University, Beijing 100094, China;Department of Plant Nutrition, China Agricultural University, Beijing 100094, China;Department of Applied Chemistry,
China
Agricultural
University,
Beijing
100094,
China;Department of Chemistry, Jilin University, Changchun, Jilin 130023, China;Department of Chemistry, Jilin University, Changchun, Jilin 130023,
China
【正文语种】中文 【中图分类】 【文献来源】
https://www.zhangqiaokeyan.com/academic-journal-cn_chinese-journal-chemistry_thesis/0201251288709.html 【相关文献】
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Synthesis of Ordered Biosilica Materials
