Hostname: page-component-cd9895bd7-p9bg8 Total loading time: 0 Render date: 2024-12-27T07:53:14.298Z Has data issue: false hasContentIssue false

Microwave Mechanisms — The Energy/Heat Dichoto

Published online by Cambridge University Press:  14 March 2018

Jose J. Galvez*
Affiliation:
Department of Pathology and Laboratory Medicine, University of California, Davis
Richard T. Giberson
Affiliation:
TedPella, Inc
Robert D. Cardiff
Affiliation:
Department of Pathology and Laboratory Medicine, University of California, Davis

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The current use of microwave technology in science creates a dichotomy. Is it the heat or is it the energy? One entire branch of science, chemistry, uses microwave energy to apply heat to a broad range of chemical processes, under pressure, to produce the desired end-products quickly and efficiently (1). The biological sciences, surgical pathology in particular, have tried to adapt the microwave oven to speed up a broad range of processes: fixation, decalcification, antigen retrieval, tissue processing for paraffin and plastic embedding, and histological staining, including special stains, immunolabeling, and in situ hybridization (2). The biologists have assumed that they are also applying heat to speed processing. However, recent improvements in the microwave suggest that the energy is the critical variable (9). We have designed fixation experiments to test the two views.

Type
Research Article
Copyright
Copyright © Microscopy Society of America 2004

References

1.Microwave-Enhanced Chemistry - Fundamentals, Sample Preparation and Applications. Kingston, H.M. and Haswell, S.J., eds. American Chemical Society, Washington, D.C., 1997, Foreword.Google Scholar
2. Leong, A.S-Y and Sormunen, R.T. (1998) Microwave procedures for electron microscopy and resin-embedded sections, Micron. 29:397409.Google Scholar
3. Fox, C.H., Johnson, F.B., Whiting, J., and Roller, P.P. (1985) Formaldehyde fixation. J. Histochem. Cytochera. 33:845853.Google Scholar
4. Werner, M., Chott, A., Fabiano, A. and Battifora, H. (2000) Effect of formalin tissue fixation and processing on immunohistochemistry. Am. J. Surg. Pathol. 24:10161039.Google Scholar
5. Helander, K.G. (1994) Kinetic studies of formaldehyde binding in tissue. Biotech. And Histochem. 69:177179.Google Scholar
6. Helander, K.G. (1999) Formaldehyde binding in brain and kidney: a kinetic study of fixation. The J. Histotechnol. 22:317318.Google Scholar
7. Walker, J.F. (1964) Formaldehyde, 3rd Ed., Reinhold Publishing Corp., New York, pp. 106122.Google Scholar
8. Kok, L.E. and Boon, M.E. (1992) Microwave Cookbook for Microscopists - Art and Science of Visualization, Coulomb Press, Leydon, pp. 28175.Google Scholar
9. Giberson, R.T. and Elliott, D.E. (2001) Microwave-assisted formalin fixation of fresh tissue: A comparative study. In: Microwave Techniques and Protocols, Giberson, R.T. and Demaree, R.S., Jr. eds, Humana Press, Inc. Totowa, NJ, pp 191208.Google Scholar
10. Mayers, C.P. (1970) Histological Fixation by microwave heating. J Clin Pathol. 23:273275.Google Scholar