A rapid microbiopsy system to improve the preservation of biological samples prior to high-pressure freezing.

Details

Serval ID
serval:BIB_28885
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
A rapid microbiopsy system to improve the preservation of biological samples prior to high-pressure freezing.
Journal
Journal of Microscopy
Author(s)
Vanhecke D., Graber W., Herrmann G., Al-Amoudi A., Eggli P., Studer D.
ISSN
0022-2720
Publication state
Published
Issued date
2003
Volume
212
Number
Pt 1
Pages
3-12
Language
english
Notes
Old uritopublisher value http://www.blackwell-synergy.com/Journals/member/institutions/issuelist.asp?journal=jmi
Abstract
A microbiopsy system for fast excision and transfer of biological specimens from donor to high-pressure freezer was developed. With a modified, commercially available, Promag 1.2 biopsy gun, tissue samples can be excised with a size small enough (0.6 mm x 1.2 mm x 0.3 mm) to be easily transferred into a newly designed specimen platelet. A self-made transfer unit allows fast transfer of the specimen from the needle into the specimen platelet. The platelet is then fixed in a commercially available specimen holder of a high-pressure freezing machine (EM PACT, Leica Microsystems, Vienna, Austria) and frozen therein. The time required by a well-instructed (but not experienced) person to execute all steps is in the range of half a minute. This period is considered short enough to maintain the excised tissue pieces close to their native state. We show that a range of animal tissues (liver, brain, kidney and muscle) are well preserved. To prove the quality of freezing achieved with the system, we show vitrified ivy leaves high-pressure frozen in the new specimen platelet.
Keywords
Animals, Biopsy, Brain, Cryopreservation, Cryoultramicrotomy, Freeze Substitution, Freezing, Kidney, Liver, Microscopy, Electron, Muscles, Plant Leaves, Pressure, Rats, Specimen Handling, Time Factors
Pubmed
Web of science
Create date
19/11/2007 13:26
Last modification date
20/08/2019 14:08
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