Volume microscopy in biology: FIB-SEM tomography

Area of Science:

• Cellular biology
• Microscopy techniques
• Electron microscopy

Background:

• Volume microscopy is crucial for cellular biology research.
• Traditional serial sectioning is labor-intensive.
• Advancements enable more efficient 3D volume data acquisition.

Purpose of the Study:

• To discuss the advantages of modern volume microscopy techniques.
• To compare serial-block face scanning electron microscopy (SBF-SEM) and focused ion beam scanning electron microscopy (FIB-SEM).
• To highlight applications of FIB-SEM in cellular ultrastructure analysis.

Main Methods:

• Comparison of SBF-SEM and FIB-SEM methodologies.
• Discussion of instrument capabilities for different volume sizes and resolutions.
• Review of specific case studies utilizing FIB-SEM.

Main Results:

• SBF-SEM is optimal for imaging large biological volumes.
• FIB-SEM offers superior voxel resolution for nanoscale details.
• FIB-SEM enables detailed ultrastructural analysis of cellular components.

Conclusions:

• Modern volume microscopy techniques like SBF-SEM and FIB-SEM significantly improve 3D imaging efficiency in cell biology.
• The choice between SBF-SEM and FIB-SEM depends on the scale and resolution requirements.
• FIB-SEM is a powerful tool for high-resolution investigation of cellular architecture.