Single-shot 20-fold expansion microscopy
Abstract Expansion microscopy (ExM) is in increasingly widespread use throughout biology because its isotropic physical magnification enables nanoimaging on conventional microscopes. To date, ExM methods either expand specimens to a limited range (~4–10× linearly) or achieve larger expansion factors through iterating the expansion process a second time (~15–20× linearly). Here, we present an ExM protocol that achieves ~20× expansion (yielding <20-nm resolution on a conventional microscope) in a single expansion step, achieving the performance of iterative expansion with the simplicity of a single-shot protocol. This protocol, which we call 20ExM, supports postexpansion staining for brain tissue, which can facilitate biomolecular labeling. 20ExM may find utility in many areas of biological investigation requiring high-resolution imaging.
Authors
- Wang Shiwei (ORCID: https://orcid.org/0000-0002-6097-3424)
- Ryan B. McMillan (ORCID: https://orcid.org/0000-0002-8905-0471)
- Kylie S. Leung (ORCID: https://orcid.org/0000-0002-0641-2183)
- Peng Yin (ORCID: https://orcid.org/0000-0002-2769-6357)
- Hanquan Su (ORCID: https://orcid.org/0000-0002-5029-580X)
- Laura L. Kiessling (ORCID: https://orcid.org/0000-0001-6829-1500)
- Tay Shin (ORCID: https://orcid.org/0000-0002-0061-522X)
- Yixi Liu (ORCID: https://orcid.org/0000-0001-5742-1031)
- Chi Zhang (ORCID: https://orcid.org/0000-0001-8660-6908)
- Harley B. Yoder
- Edward S. Boyden
Institutions
- Broad Institute (US)
- Howard Hughes Medical Institute (US)
- Harvard University (US)
- McGovern Institute for Brain Research (US)
- Harvard University Press (US)
- Harvard Bioscience (United States) (US)
- Center for Systems Biology (US)
- Massachusetts Institute of Technology (US)
Publication Details
- Journal
- Nature Methods
- Published
- 2024-10-11
- DOI
- https://doi.org/10.1038/s41592-024-02454-9
- Citations
- 31
- Primary Topic
- Advanced Fluorescence Microscopy Techniques
- Type
- article
- Field-Weighted Citation Impact
- 20.53
Funders
- Howard Hughes Medical Institute
- Office of Extramural Research, National Institutes of Health