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Updated: Jun 25, 2026

Preparation of Functional Silica Using a Bioinspired Method
08:04

Preparation of Functional Silica Using a Bioinspired Method

Published on: August 1, 2018

Biologically formed mesoporous amorphous silica.

Martin Jensen1, Ralf Keding, Thomas Höche

  • 1Section of Chemistry, Aalborg University, DK-9000 Aalborg, Denmark.

Journal of the American Chemical Society
|February 10, 2009
PubMed
Summary
This summary is machine-generated.

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Researchers synthesized amorphous silica using biological catalysis under ambient conditions. This biomimetic approach yields mesoporous silica spicules, offering potential for durable, room-temperature mesoporous membranes.

Area of Science:

  • Materials Science
  • Biomaterials
  • Nanotechnology

Background:

  • Mesoporous crystalline silica synthesis via biomimetic routes is well-established.
  • Biomimetic synthesis of mesoporous amorphous silica remains underexplored.

Purpose of the Study:

  • To investigate the biomimetic synthesis of amorphous silica.
  • To explore the potential of biologically synthesized amorphous silica for novel applications.

Main Methods:

  • Biological catalysis in aqueous solution under ambient conditions.
  • Characterization of silica spicule morphology, structure, and mesoporosity.

Main Results:

  • High-purity amorphous silica spicules (average diameter: 15.6 microm) were successfully synthesized.

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  • These spicules, forming the skeleton of the freshwater sponge Cauxi, contain intrinsic mesopores.
  • A mechanism for biological precipitation of amorphous silica was elucidated.

    • Conclusions:

    • Biomimetic synthesis offers a viable route to amorphous mesoporous silica.
    • The discovery of mesopores within amorphous silica spicules opens avenues for developing durable mesoporous membranes at room temperature.