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Journal Article

A carbon nanotube tape for serial-section electron microscopy of brain ultrastructure

MPS-Authors

Schurr,  Meike
Connectomics Department, Max Planck Institute for Brain Research, Max Planck Society;

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Straehle,  Jakob
Connectomics Department, Max Planck Institute for Brain Research, Max Planck Society;

Gour,  Anjali
Connectomics Department, Max Planck Institute for Brain Research, Max Planck Society;

Mikula,  Shawn
Department: Electrons-Photons-Neurons / Denk, MPI of Neurobiology, Max Planck Society;

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Citation

Kubota, Y., Sohn, J., Hatada, S., Schurr, M., Straehle, J., Gour, A., et al. (2018). A carbon nanotube tape for serial-section electron microscopy of brain ultrastructure. Nature Communications, 9(1), 437-437. doi:10.1038/s41467-017-02768-7.


Cite as: https://hdl.handle.net/21.11116/0000-0002-7486-4
Abstract
Automated tape-collecting ultramicrotomy in conjunction with scanning electron microscipy (SEM) is a powerful approach for volume electron microscopy and three-dimensional neuronal circuit analysis. Current tapes are limited by section wrinkle formation, surface scratches and sample charging during imaging. Here we show that a plasma-hydrophilized carbon nanotube (CNT)-coated polyethylene terephthalate (PET) tape effectively resolves these issues and produces SEM images of comparable quality to those from transmission electron microscopy. CNT tape can withstand multiple rounds of imaging, offer low surface resistance across the entire tape length and generate no wrinkles during the collection of ultrathin sections. When combined withan enhanced en bloc staining protocol, CNT tape-processed brain sections reveal detailed synaptic ultrastructure. In addition, CNT tape is compatible with post-embedding immunostaining for light and electron microscipy. We conclude that CNT tape can enable high-resolution volume electron microscopy for brain ultrastructure analyses