Motionless volumetric structured light sheet microscopy

Area of Science:

• Biomedical Engineering
• Microscopy
• Optical Imaging

Background:

• Increasing demand for affordable, compact cellular-resolution imaging technologies.
• Limitations of existing methods in terms of complexity, cost, and moving parts.

Purpose of the Study:

• To develop a novel microLED-based structured light sheet microscope.
• To enable low-cost, compact, and high-resolution 3D imaging of biological tissues.
• To demonstrate multi-modal imaging capabilities for both ex vivo and in vivo applications.

Main Methods:

• Utilized a microLED panel as the direct light source for illumination structure generation.
• Implemented fully digital light sheet scanning and modulation, eliminating the need for mechanical components.
• Developed a compact and simplified microscope system architecture.

Main Results:

• Achieved 3D volumetric imaging with optical sectioning capabilities.
• Demonstrated cellular resolution in biological tissue samples.
• Successfully imaged ex vivo tissues including gastrointestinal tract, kidney, and brain from porcine and murine models.

Conclusions:

• The microLED-based structured light sheet microscope offers a cost-effective and compact solution for high-resolution biological imaging.
• The digital illumination system simplifies operation and enhances reliability compared to traditional methods.
• The technology shows broad applicability for diverse ex vivo and in vivo imaging needs in multiple modalities.