Zamboni Fixative
(use: Light & Electron Microscopy.)
SOLUTION:
1 Liter | |
Zamboni Fixative | Part 1459A |
APPLICATION:
Newcomer Supply Zamboni Fixative is a ready-to-use phosphate buffered picric acid-formaldehyde (PAF) fixative with applications for light and electron microscopy. Zamboni fixative is stable and provides general fixation with rapid penetration, optimal preservation and stabilization of cellular proteins.
METHOD:
Fixation:
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- Small Biopsies: Minimum of 1 hour
- Larger Biopsies: Minimum of 4 hours
Solutions: All solutions are manufactured by Newcomer Supply, Inc.
FIXATION PROCEDURE:
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- Place fresh tissue in Zamboni Fixative after surgical excision.
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- See Procedure Note #1.
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- Hold tissue specimens in Zamboni Fixative until ready to process.
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- See Procedure Note #2.
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- Rinse Zamboni fixed tissue thoroughly in running tap water followed by Phosphate Buffered Saline 0.1M, pH 7.4 (Part 133104) for a minimum of 15 minutes prior to processing.
- Processing:
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- Light microscopy: place on tissue processor starting in either Formalin 10%, Phosphate Buffered (Part 1090) fixation step or first dehydration station.
- Electron microscopy: a secondary osmium tetroxide fixation is recommended. Refer to protocol for electron microscopy processing.
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- Place fresh tissue in Zamboni Fixative after surgical excision.
PROCEDURE NOTES:
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- For electron microscopy studies, fix tissues within 15 minutes after excision. Mince into 1mm cubes for expedient fixative infiltration.
- Tissue can be held indefinitely in Zamboni Fixative at room temperature without compromising preservation.
REFERENCES:
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- Carson, Freida L., and Christa Hladik. Histotechnology: A Self-Instructional Text. 3rd ed. Chicago, Ill.: American Society of Clinical Pathologists, 2009. 21, 334, 336.
- Dapson, Janet Crookham, and Richard Dapson. Hazardous Materials in the Histopathology Laboratory: Regulations, Risks, Handling, and Disposal. 4th ed. Battle Creek, MI: Anatech, 2005. 150, 265-266.
- Sheehan, Dezna C., and Barbara B. Hrapchak. Theory and Practice of Histotechnology. 2nd ed. St. Louis: Mosby, 1980. 48, 328-330.
- Zamboni, Luciano, and Cesare De Martino. “Buffered Picric Acid Formaldehyde: A New Rapid Fixative for Electron Microscopy”. Journal of Cell Biology (1967) 35: 148.
- Modifications developed by Newcomer Supply Laboratory.