Abstract
The method of fluorescent microscopy is developed based on employment of a single-mode fibreoptic channel to provide high spatial resolution 3D images of large cleared biological specimens using the 488-nm excitation laser line. The transverse and axial resolution of the setup is 5 and 13 μm, respectively. The transversal sample size under investigation is up to 10 mm. The in-depth scanning range depends on the sample transparency and reaches 4 mm in the experiment. The 3D images of whole mouse organs (heart, lungs, brain) and mouse embryos obtained using autofluorescence or fluorescence of exogenous markers demonstrate a high contrast and cellular-level resolution.
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