Skeletal muscle processed with ASP-1000 in just 133 minutes

Speed & Ease

Fully Automated Specimen and Grid Preparation

Automated immunogold labeling

C. elegans IGL with mPrep ASP-1000

Ebola 1100×450

Safer processing

Ebola virus TEM prepared with mPrep/g capsule

Introducing the mPrep System

The mPrep™ System uses mPrep capsules to prepare specimens and grids for electron microscopy and other applications.

Use mPrep capsules with the programmable mPrep ASP-1000 Auto Specimen Processor for “hands-off” preparation of specimens and grids with any protocol.

mPrep capsules connect to lab pipettors just like pipette tips for convenient processing in any lab.

Solves common problems

  • System efficiency reduces tedium
  • Orient specimens in seconds
  • Protect samples from damage and contamination
  • Minimize human touches
  • Capsules labeled for easy tracking

Expands lab capabilities

  • Automated “walk away” sample prep
  • Rapid tissue processing
  • Automated immuno-gold labeling
  • Controlled reagent delivery
  • Reproducible results

Adapts to unique challenges

  • A core lab uses the ASP-1000 for automated overnight immunogold grid labeling
  • An infectious diseases lab easily prepares pathogenic viruses for TEM in BSL3/4 biocontainment
  • A researcher simultaneously tested 16 different TEM sample preparation protocols using mPrep/s capsules

The mPrep System is the right choice

mPrep/s capsules

mPrep/s capsules entrap specimens for transmission and scanning electron microscopy and other sample preparation. Capsules hold specimens throughout fixation, embedding, and sectioning.


The mPrep Workstation orients specimens in mPrep/s capsules and streamlines workflow from dissection to reagent processing.


Encapsulated specimens are protected from loss, misidentification and damage. Quality reproducible results are achieved with a fraction of the effort.

mPrep/g capsules

mPrep/g capsules hold TEM grids throughout staining, immuno-labeling and storage. Grids are protected from loss, misidentification, and damage.


Grids may require handling only twice: when inserted into capsules and when placed in the TEM. Grid-Tite™ slots keep grids safe even if an open capsule is dropped.


Reagent consumption is as little as 20 μl per grid.  You may never lose or damage a grid again.