Spectroscopic characterization of biogenic silica

被引：110

作者：

Gendron-Badou, A

Coradin, T

Maquet, J

Fröhlich, F

Livage, J

机构：

[1] Univ Paris 06, CNRS, UMR 7574, Lab Chim Mat Condensee, F-75252 Paris 05, France

[2] Museum Natl Hist Nat, Ctr Spectoscopie Infrarouge, F-75005 Paris, France

[3] Museum Natl Hist Nat, Geol Lab, F-75005 Paris, France

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2003年 / 316卷 / 2-3期

关键词：

D O I：

10.1016/S0022-3093(02)01634-4

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Amorphous biogenic silicas were studied by FTIR and MAS-NMR spectroscopy. Fossil diatom frustules and sponge spicules exhibit a highly condensed and well-organised silica whereas the silica frustule of living diatoms is much less condensed, suggesting that some condensation process still happens upon fossilisation during the diagenetic evolution of silica. Moreover, the silica network of living diatoms appears to be linked to the bio-organic components of the cell, in agreement with the biosilicification mechanisms suggesting that some proteins or polysaccharides favour the formation of silica. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：331 / 337

页数：7

共 28 条

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