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Diamond Knife Selection Guide |
Use the application guide below to get started |
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Delaware Diamond Knives makes high quality diamond knives for ultrathin sectioning for transmission election microscopy and thick sectioning for light microscopy. To buy a new diamond knife for ultramicrotomy, only three parameters need be specified: the boat style, the included angle and the edge length. Here is help in specifying the right knife for the job.
Or view the complete DDK Knife Guide
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| Styles |
Knife Type |
Angles |
Edge Length |
Thickness |
Applications |
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Ultrathin |
45 |
1.0-6.0mm |
30-200nm |
Routine Sectioning |
| 45 |
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10-30nm |
EELS (special request) |
| 35 |
1.0-6.0mm |
30-200nm |
Soft biological |
| 55 |
1.0-6.0mm |
30-200nm |
Hard material samples |
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Histo |
45 |
2.0-6.0mm |
0.5-5.0um |
Epoxy section
for LM |
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Dry-cryo
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45 |
1.0-6.0mm |
50-500nm |
Frozen biological or materials sample such as polymers |
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Wet-cryo |
45 |
1.0-6.0mm |
50-500nm |
Frozen materials -- polymers floated on alcohol, etc. |
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| Ultrathin Diamond Knives |
The edges of our diamond knives have been shown to have a radii of curvature of 20 Angstroms or less, the sharpest edge that has ever been put on any material. Flaws in the facets that form this edge give unacceptable results, so great effort is made to achieve facets that are smooth on an atomic scale.
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| Angles |
Edge Length |
Thickness |
Applications |
45º |
variety of sizes ranging from 1.0-6.0mm |
30-200nm |
Routine Sectioning |
| 45º |
2.0 - 4.0mm |
10-30nm |
EELS (special request) |
| 35º |
1.0-6.0mm |
30-200nm |
Soft biological |
| 55º |
1.0-6.0mm |
30-200nm |
Hard material samples |
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| Diamond Histo Knife |
| DDK manufacturers high quality diamond histo knives for preparing thick sections. The DDK histo knife is made from natural diamond and manufactured using the same processes as the ultrathin knife. We provide customized testing, free knife evaluations, and we creatively design cost effective solutions to meet your budgetary requirements! |
Specifications |
| Blade edge length range: |
2.0-6.0mm |
| Blade angle: |
45 degrees |
| Section thickness: |
500nm-5um |
| Embedding material: |
Epoxy: Epon, Araldite, Spurrs |
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