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Updated: Jul 12, 2026

A Sectioning, Coring, and Image Processing Guide for High-Throughput Cortical Bone Sample Procurement and Analysis for Synchrotron Micro-CT
Published on: June 12, 2020
Variable porosity in siliceous skeletons: determination and importance
Biogenic silica samples are finely divided and porous, as indicated by gas adsorption and electron microscopy. These findings reveal the material
Area of Science:
- Materials Science
- Geochemistry
- Nanotechnology
Background:
- Biogenic silica, formed through biological processes, is a material of interest for its unique properties.
- Understanding the microstructural characteristics of biogenic silica is crucial for its potential applications.
Purpose of the Study:
- To determine the specific surface area and specific pore volume of biogenically precipitated silica.
- To characterize the microstructure of biogenic silica using advanced imaging techniques.
Main Methods:
- Gas adsorption analysis was employed to quantify surface area and pore volume.
- Transmission electron microscopy (TEM) was utilized for high-resolution microstructural imaging.
Main Results:
- Gas adsorption data revealed significant specific surface area and specific pore volume in the silica samples.
- TEM analysis confirmed that the biogenic silica is finely divided and exhibits a porous structure.
- Microstructural observations were consistent across various magnifications up to 180,000x.
Conclusions:
- Biogenically precipitated silica possesses a finely divided and porous microstructure.
- The combination of gas adsorption and electron microscopy provides a comprehensive characterization of biogenic silica.
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