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A versatile tiling light sheet microscope for cleared tissue imaging

Gao, L.

2019-11-04 bioengineering
10.1101/829267 bioRxiv
Show abstract

We present a tiling light sheet microscope compatible with all tissue clearing methods for rapid multicolor 3D imaging of centimeter-scale cleared tissues with micron-scale (4x4x10 m3) to nanometer-scale (70x70x200 nm3) spatial resolution. The microscope uses tiling light sheets to achieve a more advanced multicolor 3D imaging ability than conventional light sheet microscopes. The illumination light is phase modulated to adjust the 3D imaging ability of the microscope based on the tissue size and the desired spatial resolution and imaging speed, and also to keep the microscope aligned. The ability of the microscope to align via phase modulation alone also makes the microscope reliable and easy to operate. Here we describe the working principle and design of the microscope. We demonstrate its imaging ability by imaging various cleared tissues prepared by different tissue clearing and tissue expansion techniques.

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