Document Detail


Use of low-angle diamond knives leads to improved ultrastructural preservation of ultrathin sections.
MedLine Citation:
PMID:  2559444     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Low-angle diamond knives, one of them with an angle as low as 14.6 degrees, have been tested to measure compression induced during the sectioning of polystyrene latex spheres embedded in epoxy resins. Compression diminishes roughly proportional to the sectioning angle (sum of knife and clearance angles). The beneficial application of low-angle diamond knives in biology and material science is illustrated by sections through a muscle fiber (compression reduced by a factor of 3), sections through a collagen fiber (meridional resolution improved by a factor of 2) and sections through a copper grid bar (reduced curling). These low-angle diamond knives are as resistant as the classical knives having angles of 45 degrees and are routinely used by the author. Low-angle diamond knives with angles down to 35 degrees are now commercially available.
Authors:
J C Jésior
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Scanning microscopy. Supplement     Volume:  3     ISSN:  0892-953X     ISO Abbreviation:  Scanning Microsc. Suppl.     Publication Date:  1989  
Date Detail:
Created Date:  1990-03-08     Completed Date:  1990-03-08     Revised Date:  2007-08-02    
Medline Journal Info:
Nlm Unique ID:  8710881     Medline TA:  Scanning Microsc Suppl     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  147-52; discussion 152-3     Citation Subset:  IM    
Affiliation:
Biologie Structurale/D.R.F., Grenoble, France.
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MeSH Terms
Descriptor/Qualifier:
Animals
Carbon*
Diamond
Fixatives
Insects / ultrastructure
Latex
Microtomy / methods*
Muscles / ultrastructure*
Polystyrenes
Preservation, Biological
Rats
Chemical
Reg. No./Substance:
0/Fixatives; 0/Latex; 0/Polystyrenes; 7440-44-0/Carbon; 7782-40-3/Diamond

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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