Serial block face scanning electron microscopy--the future of cell ultrastructure imaging

Area of Science:

• Microscopy
• Cell Biology
• Electron Microscopy

Background:

• Transmission electron microscopy has limitations in producing 3D views of biological structures.
• Existing 3D microscopy techniques do not fully address all research questions.
• There is a need for methods combining high resolution with large-scale 3D imaging.

Purpose of the Study:

• To review the potential of serial block face scanning electron microscopy (SEM).
• To highlight its application in visualizing the 3D organization of various cell types.
• To position serial block face SEM as a complementary technique in biological imaging.

Main Methods:

• Serial block face scanning electron microscopy (SEM) is discussed as a key technique.
• Comparison with high-end fluorescence microscopy and electron tomography is presented.
• The review focuses on the application of this method for 3D reconstruction.

Main Results:

• Serial block face SEM effectively bridges the resolution gap between different 3D imaging modalities.
• It provides a valuable method for obtaining detailed 3D ultrastructural information.
• The technique is applicable across diverse biological samples, including animal, plant, and microbial cells.

Conclusions:

• Serial block face SEM is a powerful tool for studying the 3D organization of cells and tissues.
• It offers a practical solution for generating comprehensive 3D views.
• This technique enhances our understanding of cellular architecture in various organisms.