A Multi-Modal Light Sheet Microscope for High-Resolution 3D Tomographic Imaging with Enhanced Raman Scattering and...

Area of Science:

• Biomedical Optics
• Cellular Imaging
• Biotechnology

Background:

• Three-dimensional (3D) cellular models are crucial for histology, oncology, and tissue engineering.
• Advanced imaging techniques are needed to study complex biological phenomena in these models.

Purpose of the Study:

• To present a novel multi-modal Raman light sheet microscope for label-free, high-resolution 3D imaging.
• To integrate optical and computational strategies for enhanced imaging of biomolecular and structural features.

Main Methods:

• Developed a multi-modal microscope capturing elastic (Rayleigh), inelastic (Raman) scattering, and fluorescence signals.
• Utilized a 532 nm excitation wavelength to enhance Raman scattering efficiency and suppress fluorescence.
• Integrated a Deep Image Prior (DIP) algorithm for unsupervised denoising and resolution enhancement.

Main Results:

• Achieved label-free, high-resolution tomographic imaging of 3D cellular models.
• Demonstrated robust fluorescence suppression, avoiding drawbacks of near-infrared modalities.
• Preserved critical molecular details and minimized artifacts through computational enhancement.

Conclusions:

• The developed microscope offers advanced 3D imaging capabilities for complex biological specimens.
• This synergy of optical and computational methods advances biomedical research, diagnostics, and therapeutics.