Enlarged Field of View in Spatially Modulated Selective Volume Illumination Microscopy.

Area of Science:

• Biophysics
• Optical Microscopy
• Bioimaging

Background:

• Three-dimensional fluorescence microscopy is crucial for visualizing biological structures.
• Existing methods face challenges with large samples and illumination artifacts.
• Spatially modulated Selective Volume Illumination Microscopy (smSVIM) was previously introduced to address these issues.

Purpose of the Study:

• To present a novel smSVIM-based strategy for imaging large, transparent, or chemically cleared biological specimens.
• To achieve uniform resolution across a large field of view.
• To demonstrate improved imaging performance for diverse sample types and sizes.

Main Methods:

• Implementation of a synchronized illumination and camera rolling shutter system for steady sample mounting.
• Application of the smSVIM technique to large-scale biological samples.
• Utilizing a tailored deconvolution method for image reconstruction.

Main Results:

• Achieved uniform resolution over a large field of view.
• Demonstrated significant improvements in image resolution at various magnifications.
• Successfully imaged samples of varying sizes and spatial features, including cleared tissues.

Conclusions:

• The new smSVIM strategy enables high-resolution 3D imaging of large biological specimens.
• This approach overcomes limitations of traditional microscopy for cleared tissues.
• The technique offers enhanced visualization capabilities for complex biological samples.