Since 1970, Diatome Limited in Switzerland has been producing diamond knives for ultramicrotomy and have established the most comprehensive range of knives for sectioning biological and material science specimens at room temperature and cryo conditions.

For a detailed description of Diatome’s range of knives for routine sectioning of biological and material science specimens, please click on the appropriate link below: for over 15 years. Please Contact Us for more information.

Diatome Ultra Knives

• Ultra 35° the diamond knife for optimized sectioning results in almost all applications.
• Semi the first diamond knife for alternating sectioning ultrathin/semithin.
• Ultra AFM  the first diamond knives for AFM at room and low temperatures.
• Ultra sonic the oscillating diamond knife for room temperature sectioning.
• Trim 45° and 20° trimming tools for both room and cryo temperatures. For successful ultramicrotomy in biology and material science, precise trimming is mandatory.
• Ultra 45° the first diamond knife with an absolutely score-free, hydrophilic cutting edge.

Diatome Cryo knives

• Cryo 25° for sectioning frozen hydrated specimens with less compression.
• Cryo immuno the optimized cryo diamond knife for the Tokuyasu technique.
• Cryo the diamond knife for sectioning (of polymers, rubber and paints etc) at low temperature.
• Cryo AFM the first diamond knives for AFM at room and low temperatures.
• Cryotrim 45 and 25 for optimizing trimming with diamond blades.
• Cryo-P a cryo knife with a patented platform for section pick up.

Diatome Histo knives

• Histo – the first diamond knife for semithin sections for light microscopy.
• Histo Cryo (dry or wet) – delivered with a boat for wet sectioning using a DMSO/ water mixture or in triangular holders for dry sectioning. 
• Histo Jumbo – the large Jumbo boat as well as the adhesive (Pattex compact by Henkel) applied to the side of the sample block increase the distinct advantages of our histo knives.

Cleaver

• Swiss diamond cleavers for critical cutting of optical fibers.

Manipulator

• Manipulator for easy handling and mounting section ribbons.

Static line ioniser

• Static Line II the ioniser for eliminating electrostatic charging in cryo ultramicrotomy.

Trimmers

• Trimtool 45° and 20° trimming tools for both room and cryo temperatures. For successful ultramicrotomy in biology and material science, precise trimming is mandatory.

Ultrasonic

• Ultra sonic the oscillating diamond knife for room temperature sectioning.