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Embedding Small Specimens for TEM Examination

Published online by Cambridge University Press:  14 March 2018

Paul Webster*
Affiliation:
House Ear Institute

Extract

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When preparing specimens for TEM analysis, it is important that specimens routinely be large enough to manipulate with forceps and cohesive enough to hold together as a single entity. However, anyone working in EM will have some specimens that are too small to see or centrifuged pellets that easily fall apart during processing. These specimens can easily be lost during a routine dehydration and embedding protocol and therefore cannot be sectioned. If the specimen to be processed is too small to handle or will fall apart, then precautions can be taken to ensure that it can be safely embedded for sectioning. Although this article is written with the main focus on biomedical electron microscopy, these handling protocols can be applied to any small specimens that have to be thin sectioned.

Type
Research Article
Copyright
Copyright © Microscopy Society of America 2005

References

1. Amigorena, S., Drake, J.R., Webster, P. and Mellman, I. 1994. Transient accumulation of new class IIMHC molecules in a novel endocytic compartment in B lympho cytes. Nature 369:113-120.CrossRefGoogle Scholar
2. Bierkamp, C., Schwarz, H., Huber, O., and Kemler, R.. 1999. Desmosomal localization of b-catenin in the skin of plakoglobin null-mutant mice. Development. 126,371381.Google Scholar
3. Gardiner, P.R., Webster, P., Jenni, L. and Moloo, S. K.. 1986. Metacyclic Trypanosoma vivax posses a surface coat. Parasitology. 92: 7582.Google Scholar
4. Hook, U. and Svalander, C.T.. 1991. Agarose method for the preparation of isolated glomeruli from human renal biopsies. APMIS. 1991 99:844848.Google Scholar
5. K, Pedersen, Snijder, E.J., Schleich, S., Roos, N., Griffiths, G. and, Locker, J.K.. 2000. Characterization of vaccinia virus intracellular cores: implications for viral uncoating and core structure. J Virol. 74:35253536.Google Scholar
6. Raska, I, Pliss, A., Mandys, V., Risueno, M.C. and Lojda, Z. 1998. Processing of free cells for electron microscopy using a fibrin clot. Acta Histochem. 100:309313.Google Scholar