Developing 3D SEM in a broad biological context

A. Kremer, S. Lippens, S. Bartunkova, B. Asselbergh, C. Blanpain, M. Fendrych, A. Goossens, M. Holt, S. Janssens, M. Krols, J. Larsimont, C. Mc Guire, M. Nowack, X. Saelens, A. Schertel, B. Schepens, M. Slezak, V. Timmerman, C. Theunis, R. Van Brempt, Y. Visser, C. Guérin, Journal of Microscopy 259 (2015) 80–96.

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Journal Article | Published | English
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Abstract
When electron microscopy (EM) was introduced in the 1930s it gave scientists their first look into the nanoworld of cells. Over the last 80 years EM has vastly increased our understanding of the complex cellular structures that underlie the diverse functions that cells need to maintain life. One drawback that has been difficult to overcome was the inherent lack of volume information, mainly due to the limit on the thickness of sections that could be viewed in a transmission electron microscope (TEM). For many years scientists struggled to achieve three-dimensional (3D) EM using serial section reconstructions, TEM tomography, and scanning EM (SEM) techniques such as freeze-fracture. Although each technique yielded some special information, they required a significant amount of time and specialist expertise to obtain even a very small 3D EM dataset. Almost 20 years ago scientists began to exploit SEMs to image blocks of embedded tissues and perform serial sectioning of these tissues inside the SEM chamber. Using first focused ion beams (FIB) and subsequently robotic ultramicrotomes (serial block-face, SBF-SEM) microscopists were able to collect large volumes of 3D EM information at resolutions that could address many important biological questions, and do so in an efficient manner. We present here some examples of 3D EM taken from the many diverse specimens that have been imaged in our core facility. We propose that the next major step forward will be to efficiently correlate functional information obtained using light microscopy (LM) with 3D EM datasets to more completely investigate the important links between cell structures and their functions.
Publishing Year
Date Published
2015-08-01
Journal Title
Journal of Microscopy
Acknowledgement
The Zeiss Merlin with Gatan 3View2XP and Zeiss Auriga were acquired through a CLEM grant from Minister Ingrid Lieten to the VIB Bio-Imaging-Core. Michiel Krols and Saskia Lippens are the recipients of a fellowship from the FWO (Fonds Wetenschappelijk Onderzoek) of Flanders.
Volume
259
Issue
2
Page
80 - 96
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Kremer A, Lippens S, Bartunkova S, et al. Developing 3D SEM in a broad biological context. Journal of Microscopy. 2015;259(2):80-96. doi:10.1111/jmi.12211
Kremer, A., Lippens, S., Bartunkova, S., Asselbergh, B., Blanpain, C., Fendrych, M., … Guérin, C. (2015). Developing 3D SEM in a broad biological context. Journal of Microscopy, 259(2), 80–96. https://doi.org/10.1111/jmi.12211
Kremer, A, Stefaan Lippens, Sonia Bartunkova, Bob Asselbergh, Cendric Blanpain, Matyas Fendrych, A Goossens, et al. “Developing 3D SEM in a Broad Biological Context.” Journal of Microscopy 259, no. 2 (2015): 80–96. https://doi.org/10.1111/jmi.12211.
A. Kremer et al., “Developing 3D SEM in a broad biological context,” Journal of Microscopy, vol. 259, no. 2, pp. 80–96, 2015.
Kremer A, Lippens S, Bartunkova S, Asselbergh B, Blanpain C, Fendrych M, Goossens A, Holt M, Janssens S, Krols M, Larsimont J, Mc Guire C, Nowack M, Saelens X, Schertel A, Schepens B, Slezak M, Timmerman V, Theunis C, Van Brempt R, Visser Y, Guérin C. 2015. Developing 3D SEM in a broad biological context. Journal of Microscopy. 259(2), 80–96.
Kremer, A., et al. “Developing 3D SEM in a Broad Biological Context.” Journal of Microscopy, vol. 259, no. 2, Wiley-Blackwell, 2015, pp. 80–96, doi:10.1111/jmi.12211.
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