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Updated: Feb 6, 2026
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Novel Passive Clearing Methods for the Rapid Production of Optical Transparency in Whole CNS Tissue
Published on: May 8, 2018
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Evaluation of seven optical clearing methods in mouse brain.
Peng Wan1,2, Jingtan Zhu1,2, Jianyi Xu1,2
1Huazhong University of Science and Technology, Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics, Wuhan, Hubei, China.
Neurophotonics
|August 30, 2018
Summary
This study compares seven tissue optical clearing methods for mouse brains. 3DISCO, uDISCO, and PACT offer excellent clearing, while ScaLeS excels in fluorescence retention, aiding neuroscience research.
Area of Science:
- Neuroscience
- Biomedical Imaging
- Optical Engineering
Background:
- Tissue optical clearing techniques are crucial for deep tissue imaging and 3D reconstruction in neuroscience.
- Existing clearing methods have varying advantages and disadvantages, complicating protocol selection.
- A systematic comparison of diverse clearing methods is needed for practical applications.
Purpose of the Study:
- To systematically evaluate and compare the performance of seven typical optical clearing methods on mouse brain samples.
- To assess clearing efficiency, time, size deformation, fluorescence preservation, and imaging depth.
- To provide a reference for selecting the most suitable brain optical clearing method.
Main Methods:
- Evaluation of seven clearing methods: 3DISCO, uDISCO, SeeDB, ScaLeS, (specific method name missing), CUBIC, and PACT.
- Comparison of clearing effect, clearing time, and size deformation on mouse brain tissues.
- Assessment of fluorescence retention and increase in imaging depth.
Main Results:
- 3DISCO, uDISCO, and PACT demonstrated excellent clearing capabilities.
- ScaLeS and SeeDB showed moderate transparency, while (specific method name missing) performed poorly.
- uDISCO and 3DISCO caused significant size reduction; PACT caused the most expansion.
- ScaLeS excelled in fluorescence retention; 3DISCO caused the greatest fluorescence decline.
- PACT achieved the greatest increase in imaging depth; SeeDB and (specific method name missing) had the shallowest.
Conclusions:
- The study provides a comprehensive comparison of leading optical clearing techniques for mouse brains.
- Method selection depends on specific research needs, balancing clearing efficiency, tissue integrity, and fluorescence preservation.
- This comparative analysis aids researchers in choosing optimal protocols for advanced neuroscience imaging.
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